The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (2023)

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (1)

Before you can be met with bountiful hauls of dank buds, there are several stages of cannabis growing that take precedence. Unless you can successfully germinate cannabis seeds, you won’t have a plant to harvest. Give your seeds the best possible start in life by reading our definitive guide to germination.


  1. The art of germinating cannabis seeds
  2. What to look out for in cannabis seeds
  3. Germination temperature plays a crucial role
  4. What is an expected germination time?
  5. Choosing your germination method
  6. Giving your seeds the best possible start in life
  7. Germination and beyond

The Art Of Germinating Cannabis Seeds

Often overlooked, it is all too easy to assume that thevegetativeandfloweringstages of cannabis growth are the most critical parts of the plant's life cycle. However, with the chance of failure high unless you know what you're doing, poor planning when it comes to germination can make or break your next grow. Giving your cannabis seeds the best possible start on their journey to bulging buds is a surefire way to encourage a healthy and robust plant.

Small, fragile, and in desperate need of a helping hand, there are several ways you can germinate your cannabis seeds. All methods have varying degrees of success, with both advantages and disadvantages.It is important to note that even with advanced growing expertise and top-of-the-line equipment, you may still end up with a few failed seeds.This is a natural part of dealing with a living organism.At Royal Queen Seeds, we provide a wide range of high-quality regular andfeminized cannabis seeds. We label our genetics clearly, so you don’t have to worry about any unwanted surprises.

Video id: 484382081

What To Look Out For In Cannabis Seeds

Regardless of where youget your seeds from, it is best to give them a slight (and delicate) inspection before planting. Most of the time, all seeds will germinate; however, poor-quality seeds will produce a weaker plant. Unfortunately, that is something you will not find out until well into the vegetative and flowering stages.

To avoid disappointment, seeds that have a darker colouration stand a better chance of germinating, while pale green or white seeds are likely to fail.Even if dark seeds look slightly damaged, they should be planted anyway. There is a good chance they will still germinate, even if the outer shell is somewhat crushed.

Germination Temperature Plays A Crucial Role

Before we jump straight into the germination methods, there are a couple of germination golden rules. For the best results, we recommend staying within these guidelines, no matter how you choose to germinate. That being said, of all the factors to consider, temperature is one of the most critical. Seeds will always seek out even the smallest amount of moisture, but they use temperature as a sign that they need to do so.

  • The ideal temperature is between 22° and 25°C (71–77°F)
  • Your growing environment should be damp/moist, but never wet
  • Relative humidity range should be between 70% and 90%
  • Seeds favour fluorescent lighting (Cool White code 33)
  • Minimise the amount of seed handling you do
  • Inhydroponic/rockwool plugs, the ideal PH value is 5.8–6.2
-15 °C17 °C23 °C+25 °C

What Is An Expected Germination Time?

Three fundamental principles will trigger that first small taproot to appear:warmth, moisture, and darkness. With the promise of moisture, a single root will take shape before slowly developing into the cannabis plant we know and love. In the right conditions, seeds will begin to develop within 12–36 hours of moisture being introduced to them.

Timescales can vary, as it all depends on how ideal your germination environment is (see the golden rules above). Even the worst grower could make a seed germinate, but it may take a few weeks and, of course, increases the risk of a weaker plant.


(Video) How to Germinate your Cannabis Seeds!

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Choosing Your Germination Method

  • Glass Of Water Approach

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (2)

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (3)

Arguably one of the least effective methods, but it is still viable. Incredibly simple to facilitate, beginner growers may opt to germinate their seeds in a glass of water.Half-fill a glass or bowl with water that is approximately 22°C (71°F).

After 3–5 days, the seeds will start to open, and you should see tiny white tips appear. Once these roots reach 2–3cm in length, use extreme care to transfer them from the water to pre-prepared soil pots.

The soil pots will need small holes (roughly 10–15mm deep) for the newly germinated seeds to be placed into. Once the seeds are secure, you will want to place a fluorescent light 13–15cm (5–6 inches) away to encourage growth. Finally, don’t riskoverwateringyour seeds at this early stage. Use a plant mister to make sure they stay damp but not soaking wet.

  • Wet Kitchen Towel Method

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (4)

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (5)

Probably one of the most common methods of germination. The kitchen towel method comes in several iterations. Some growers use cotton wool pads or absorbent pieces of paper. For this guide, we will be using kitchen towel as it is readily available and holds moisture relatively well.

Place one sheet of damp kitchen towel on a flat surface. Space your seeds a few centimetres apart before placing the second piece of kitchen towel over the top.You need to ensure both pieces are damp, not wet. Once again, when the white root tips reach 2–3mm, move the seeds (carefully) to soil pots. Use the same guidance found above for planting techniques.

  • Planting Directly Into Soil

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (6)

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (7)

Planting directly into your growing medium prevents having to move seeds when they are at their most fragile. That first root tip is covered with microscopic filaments that are easily damaged. Given that both a cup full of water and moist paper towels are more prone to temperature fluctuations from their environment, planting in soil is a much safer option.

Start by filling pots with a premium-quality soil that has been soaked in water. Many growers also choose to lace the water with a root stimulator. Make a hole roughly 10–15mm deep. This will be your seed’s new home. Remove the seeds from their packet and place them into the pre-dug holes.Loosely cover the seeds, but be careful not to compress the soil above the seed too much. The root will struggle to penetrate solid soil, slowing plant growth. Lightly spray the top of where you placed the seed so that your growing medium stays moist.

If you don’t like the idea of pre-soaking your soil, you can use a spray to moisten the holes before you plant each seed. With enough moisture surrounding your seeds, you can still encourage a root to develop.

Your growing pots will need to be placed in a damp climate that is within the temperature range listed under our golden rules. After 4–10 days, you should see a young seedling sprout, while the roots will have begun to develop underneath the soil. The entire plant and its soil can now be transferred to a larger pot, where normal growing routines should start.

  • Using Stone Wool Blocks

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (8)

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (9)

Maintaining the ideal temperature (between 22–25°C/71–77°F) and moisture for germination is tricky. Leaving seeds out in the open environment or on a windowsill is far from ideal; a DIY climate-controlled cupboard would do a much better service. A warming mat is perfect for maintaining a constant temperature, but it doesn't tackle the issue of moisture.

You will need to invest in a few pieces of unique equipment, but by using stone wool blocks, you can create a perfect utopia for germinating cannabis seeds. Soak the stone wool blocks in the same way you would a soil medium.The wool will retain the moisture and prevent the need to water during the early stages of germination. After the wool blocks are soaked, stick them in a plastic tray that also has a lid. Large cake tubs are ideal.

The dome of the plastic container will create your seeds’ own mini tropical climate. If you then place all the components in a temperature-controlled cupboard, you will have created a self-perpetuating supply of moisture—no need to touch the seeds again until they are ready to be transferred to your finalgrowing mediumas a young seedling. Using the stone wool block method, your seeds should germinate in one to two days.

(Video) Seed Germination Hack 100% Success Sprouting Cannabis Seeds #gardening #growjournal #seedtoharvest

Two or three weeks after germination, your young seedlings should be ready for their new home. At this point you have two options; transplanting them into soil pots, or taking on the challenge ofhydroponics. You’ll know when the seedlings are ready to be moved because the root system should start to poke out of the bottom of the wool blocks. As long as the roots haven’t begun to engulf the bottom half of the wool block, they will seek out water andnutrientsin their new surroundings and continue to grow downwards.

  • RQS Soil Plugs

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (10)

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (11)

RQS Soil Plugsare another great option when it comes to germinating seeds. They are easy to use and contain a carefully crafted formula of ingredients designed to help seedlings thrive.Composed of the highest-quality peat and coir, they provide a superb balance of aeration and water retention.This ensures seeds don’t dry out, while also preventing fungal diseases that cause the dreaded damping off.

RQS Soil Plugs contain key micronutrients that seedlings require for optimal growth and development. The addition of active biologicals also helps to establish the root microbiome with beneficial organisms that fend off pathogens and assist in nutrient uptake and organic matter breakdown. Furthermore, the pH-balanced nature of these plugs means cannabis roots can easily absorb nutrients without the risk of lockout.

They’re super easy to handle and take any hassle out oftransplanting. Once roots begin to appear, you can transplant seedlings directly into soil or hydroponic systems.

To use RQS Soil Plugs, place a single seed of your choice into each plug. Place your plugs into a propagation tray and mist them with water—just enough to get them moist. Use a clear-plastic lid to maintain humidity, and aim for the temperature and humidity conditions discussed above. Use a small hygrometer to keep track of these important figures.

Soil Plugs

Soil Plugs


Buy Soil Plugs

  • Royal Queen Seeds Feminized Starter Kit

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (13)

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (14)

There is, of course, a far simpler way to germinate seeds. Ideal for beginners, the feminized starter kit by Royal Queen Seeds has everything you need to kick-start your next cannabis project.

TheRoyal Queen Seeds Feminized Starter Kitcontains:

  • 3x RQS Critical feminized seeds
  • 20x Easy-Start seedling pots
  • 1x Propagator Pro
  • 1x pack of Bacto
  • 1x perlite
  • 1x fluorescent lights
  • 1x instruction manual
  • 4x AA batteries
  • 1x Royal Queen Seeds catalogue

*You will also need a measuring cup and a stirrer (not included in the kit).

Starter Kit Feminized

Starter Kit Feminized


Buy Starter Kit Feminized

(Video) Best way to germinate Royal Queen Seeds

1. Gently remove the foil from the back of the seed packet and place them carefully into a dry container.

2. You will need a shallow container that is large enough to accommodate the seed tray. Fill the container with one litre of lukewarm water(22–25°C/71–77°F). Pour in the packet of Bacto enzyme, allowing it to dissolve before setting the seed tray into the container to soak. The seed tray only needs to be immersed for 5–10 seconds. Do not discard the Bacto mixture after the seed tray has been soaked.

3. After removing the seed tray from your shallow container, poke a10–15mmdeep hole into the soil of each pot, and delicately transfer your seeds from their dry container into each hole. Remember, one seed per pot.

4. Using the supplied propagator, sprinkle a15mm-thick layer of perliteinto the bottom of the tray.

5. Place your seed tray into the propagator, adjust the walls, and position the lid. The lid comes with an on/off switch for the already-attached lights.

6. Check the water level in your reservoir once a day. Your aim is to maintain an even level. After1–7 days, the seeds should have sprouted, with visible leaves appearing. Once the seedling is 3cm tall, transfer it to your final growing medium.

Video id: 484368580

If In Doubt, Think Springtime Conditions

No matter which method you choose, always think about what conditions would naturally be like in spring. In their natural environment, cannabis seeds would start to sprout in-line with the seasonal change from winter to spring. Moisture is still high, and temperatures will be naturally rising. Always ask yourself the question, “Does my germination setup replicate spring conditions”. If the answer is yes, there is a good chance germination will be a success.


Indoor Cannabis Growing: Relative Humidity and Temperatures

Giving Your Seeds The Best Possible Start In Life

In most cases, germination will go off without a hitch. However, there are a few troubleshooting issues we can help with.

  • Lighting

The first islighting. Your seed/young seedling will only need fluorescent orCFL grow lights, at least to begin with. While plants need light to thrive, too much of a good thing will damage cannabis in its first few weeks.

Position lights about15cm from seeds. Once your seedling has developed its first proper leaves (they will have jagged edges), you can move the lights as close as 5cm. If you are concerned about damaging your seedling, place your hand between the leaves and your lights. If you cannot hold your hand in place for ten seconds without it being too hot, move the lights 2cm away. Repeat until you are comfortable with the temperature.

As young seedlings grow quite quickly, you will need to keep adjusting lights to get the best results. After two weeks under fluorescent lights, you will be able to switch to high-powered HPS or MH-style grow lights.

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (16)

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (17)

(Video) Beginner growers guide how to plant your cannabis seeds after you germinate them.

  • Upside-down Seeds

Don’t panic, where possible roots will always grow downwards. It is not necessary to try and reposition the seed yourself. Disturbing the seed at this crucial time will do more damage than good. In most scenarios, what you are actually seeing is not a root protruding from the top of the seed, but the stem of a cannabis plant.

If you are ever unsure, always wait a few days for the first leaves(cotyledons)to appear. As long as a seed’s requirements have been met, the seedling should sort itself out. The best approach is not to panic; follow the golden rules and your young seedling will be ready to transfer to a larger pot in no time.

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (18)

The Complete Guide To Germinating Cannabis Seeds - Royal Queen Seeds (19)

Germination And Beyond

When Do You Start Feeding?

It will depend on the growing medium you are using, but in most cases, you will not need to supply any nutrients for the first2–3 weeks. There will be of plenty ofnutrientsavailable in the soil, and even coco will only need nutrients added after a week or so. If you do opt for coco or hydroponics, nutrients should be added at 0.25x their regular strength. Once the first set of leaves appear, increase this in increments of 0.25 per set of leaves. For beginners, we would always recommend using a soil medium. It allows you to get to know the intricacies of growing cannabis more efficiently, and can be the least punishing if you make mistakes.

An easy way to spot if more nutrients are needed is to observe the leaves. The serrated leaves will start to turn pale green as nutrient stores are depleted. Left long enough, leaves will eventually turn yellow. This is a definite sign that more nutrients are needed. Your plant will not die if the leaves turn yellow, but it is a timely reminder to feed your young seedling.

Nitrogen is the most commonly needed nutrient during periods of high growth. Once the seedling has been fed, the colour of the leaves will return to normal. Depending on how long you waited to take action, this can take a few hours or a whole day.


Cannabis Nutrients: Why, How, And When To Feed Your Plants

Sit Back And Relax

The first few weeks of a seedling’s development require very little interference. Nutrients, as we have mentioned, will need minor tweaks, as will lighting. However, now that your seed has germinated, you have a few weeks of grace. Sit back, relax, and enjoy your cannabis plant taking shape.

Once those initial weeks have passed, you can treat your seedling like it is in the vegetative stage, and switch to strict lighting routines and full-intensity light. During germination, always remember the golden rules, and if in doubt, ask yourself if you have created “springtime conditions”. If you are confident everything is on track, all you need to do is observe and marvel at the creation of your very own cannabis plant.

(Video) Week 1: How To Germinate Autoflowers


Should I soak cannabis seeds before germination? ›

To get the best germination rates, use moist conditions. Never use soaking wet conditions for cannabis seed germination. If the root emerges and spends too long in these saturated conditions the seed/seedling will die.

How many cannabis seeds should I germinate? ›

If you have ever wondered how many cannabis seeds per pot, look no further. One seed is all it takes to grow one plant so even if you see plants that look like as if they were bushes it is all just one seed. Regardless of the apparent size of the plant, all growers know that only one cannabis seeds per pot is required.

How often do you water cannabis seeds during germination? ›

The seeds must be initially planted in moist soil. This is necessary to make them feel more comfortable for the first few days. After sprouting, it is recommended to water frequently - 2 times a day.

Is it better to germinate cannabis seeds in the dark or light? ›

Cannabis seeds need no light when they are germinating.

In fact, they require an absence of light. All of the methods below call for darkness. Once they have sprouted, they will need a lot of light—18 hours a day, to be exact (though you could even give them 24 hours of light per day).

Should you sink or float with cannabis seeds? ›

Since viable cannabis seeds float on the surface of the water, they are able to retain the proper ratio of moisture and air. Seeds that do not float may be sterile or underdeveloped.

What are the 3 conditions necessary for germination? ›

All seeds need water, oxygen, and proper temperature in order to germinate.

What are the 3 requirements for a seed to germinate? ›

Seeds Need the Right Environment to Germinate

Temperature, moisture, air, and light conditions must be correct for seeds to germinate.

What are the 4 requirements for seed germination? ›

There are four environmental factors that affect seed germination: Water, Light, Oxygen, and Heat.

Can you germinate cannabis seeds too long? ›

If you allow your seeds to germinate for too long, transplanting them safely will become difficult. The reason for this is that the longer the roots are exposed to air and light, the more likely they are to become damaged. Moreover, the longer the taproot, the higher the risk for accidental damage when transplanting.

What is the longest time for a cannabis seed to germinate? ›

Cannabis seeds usually take between 2-10 days to germinate. We say usually because timelines can truly vary. Some seeds can germinate in as little as 24 hours, and some may take two weeks.

What is ideal germination cannabis? ›

Temperature: Overall, cannabis seeds germinate in temperatures from 70°F–90°F (21°C–32°C) and grow best at 78°F (26°C). Temperatures below 70°F (21°C) and above 90°F (32°C) impair germination. Low temperatures delay germination. High temperatures upset seed chemistry causing poor germination.

Should I germinate cannabis seeds in warm or cold water? ›

The best temperature to germinate cannabis seeds is between 70°F-90°F (21°C-32°C).

Do you keep cannabis seeds in the dark? ›

Ideal Conditions for Cannabis Seeds

Ideally, you want to store your seeds in a cool, dark, and dry place. Whenever possible, keep your seeds in their original packaging.

Do you water everyday after seeding? ›

New grass should be watered twice a day (or more under dryer conditions) to keep the top two inches of soil moist at all times. Water daily until all of the grass seeds have germinated, then it will be ready to begin a regular watering schedule.

How far should cannabis seedlings be from grow light? ›

For young crops, approximately 6-12 inches is a sensible height to begin since they need a higher intensity of light. As they mature from vegetative through flowering, it's wise to double this distance to around 12-16 inches.

Do grow lights help seeds germinate? ›

Sowing seeds indoors under fluorescent lights is the easiest way for the home gardener to control growing conditions and grow healthy transplants. Incandescent bulbs give off more heat and less light (mostly red) than fluorescent tubes and will not produce good transplants by themselves.

What temperature and humidity for germinating cannabis seeds? ›

It is important to note that cannabis seeds do best at high moisture levels of 70-80% relative humidity. The temperature is best kept between 21 degrees celsius and 26 degrees celsius for optimal germination. It is vital to keep the germinating seeds within this optimal range for the best results.

What is the best water to start cannabis seeds? ›

Rain and spring water

Bottled spring water is considered the best option for watering potted plants. It speeds up the growth of plants, does not have an excess of salts, and overall has the optimal amount of nutrients. Many growers note this water makes cannabis plants bloom more abundantly and for a longer time.

What kind of water do you soak cannabis seeds in? ›

Fill a glass with clean, room temperature water (between 18 and 25 degrees Celsius is ideal). The type of water you use should sync up with the type of water you drink. If your tap water is safe for drinking, you can use it for germination.

Do cannabis seeds like humidity? ›

During the germination stage, your cannabis seeds will need a warm and humid environment to sprout. The ideal temperature for this stage is between 21-26°C (70-80°F), with humidity levels around 80%.

What promotes seed germination? ›

Germination is induced most commonly through the imbibition of water at a species-specific temperature. Imbibition of dry seeds activates a series of events (Bewley, 1997) including oxidation, degradation, and mobilization of accumulated reserve components (Penfield et al., 2005a).

What stimulates seed germination? ›

Bioactive gibberellins (GAs) promote seed germination in a number of plant species. In dicots, such as tomato and Arabidopsis, de novo GA biosynthesis after seed imbibition is essential for germination. Light is a crucial environmental cue determining seed germination in some species.

What are two requirements for germination? ›

Light, water, oxygen, and temperature are essential conditions for seed germination. Its growth depends on many factors, including water, minerals, and nutrients. Water and oxygen are absorbed by the seed through its seed coat when it is exposed to the right conditions.

Do seeds need darkness to germinate? ›

Light is not necessary for a seed to germinate, no. The majority of seeds grow most effectively in the dark. Light, which is essential for seedling growth, may actually hinder the germination process. The three primary and necessary conditions for a seed to germinate are water, oxygen, and temperature.

Should you cover seeds when germinating? ›

To speed germination, cover the pots with plastic wrap or a plastic dome that fits over the seed-starting tray. This helps keep the seeds moist before they germinate. When you see the first signs of green, remove the cover.

Why do seeds germinate better in the dark? ›

Seeds will not germinate so well in light as in darkness ; because light decomposes the carbonic acid gas, expels the oxygen, and fixes the carbon; thus hardening all the parts of the seed, and preventing vegetation.

What are the 6 steps of seed germination? ›

6 Steps to Germinating Seeds Indoors
  • Prepare the seed-starting soil mix. ...
  • Place the seeds in soil or a wet paper towel. ...
  • Cover the seedlings with a plastic bag or lid. ...
  • Place the seeds in a warm location. ...
  • Keep the potting mix moist. ...
  • Thin seedlings to encourage larger plants.
Oct 29, 2021

What are the five factors that favor seed germination? ›

To ensure successful germination and growth it's important to understand these five factors that influence seed development - water availability, temperature range, light requirements, oxygen and soil quality - so you can create favorable conditions for your seeds.

What are the 5 common methods of seed germination? ›

Methods of Seed Germination
  • Planting Seeds Directly. The seeds that are easiest to grow are those that simply germinate when you plant them in the correct environment. ...
  • Using Cold Stratification. ...
  • Scarification to Speed Things Up. ...
  • Grow Your Own Sprouts.

What temperature kills cannabis seeds? ›

Temperatures around (or above) 35ºC/95ºF can kill the seeds/seedlings through excessive heat. That's why many successful outdoor cannabis growers prefer to germinate their cannabis seeds indoors where conditions can be opted to minimise seed germination issues.

What is the best temperature for cannabis seeds? ›

With any of these methods, remember that seeds will need adequate warmth, moisture, and air to germinate properly. Generally, cannabis seeds like a temperature of 70° F to 90° F for sprouting.

Can you soak cannabis seeds too long? ›

Soaking your seeds in a glass of water for more than 24 hours will deprive them of oxygen and they are likely to drown and may not sprout. A seed that sinks after 12 hours it's likely to be viable and good for germination. If it floats, touch it, and it will probably sink.

Do bigger seeds germinate faster? ›

Small seeds have higher germination percentage and germinate faster when compared to large seeds. Nonetheless, seedlings originated from larger seeds have longer development times, resulting in more vigorous seedlings.

How long should a cannabis seed taproot be? ›

Some grows prefer to wait until the taproot is 1-2 cm long before planting the germinated seed into a medium. Once you are ready to do so, be sure to place the seed about a half-inch below the surface of the medium with the taproot point downward and the seed shell on top.

What nutrients do cannabis need for germination? ›

What are the best nutrients for cannabis seedlings?
  • Nitrogen.
  • Phosphorus.
  • Potassium.
  • Calcium.
  • Magnesium.
  • Sulfur.
Jul 14, 2022

What nutrients do cannabis seeds need for germination? ›

Potassium and phosphorus are the most important nutrients during this stage. They promote strong and healthy roots, steams, and leaves. Oftentimes, your soil or soilless media choice provides the nitrogen your cannabis needs during the germination stage.

What is the best growing medium for cannabis seeds? ›

When it comes to versatility, coco coir is one of the best mediums for growing cannabis. This is a soilless medium that resembles the appearance of peat moss; however, unlike peat moss, it's more eco-friendly and sustainable. Peat moss when harvested can take centuries to regrow.

What do cannabis seedlings do at night? ›

During the dark cycle, cannabis plants are not photosynthesising, and continue to respire at a constant rate; they do not just begin to respire when the lights go out. The Calvin Cycle, which is light-independent, processes all that stored up solar energy into carbohydrates.

What is the light schedule for germination? ›

For best overall results, BIOS recommends that you grow your seedlings under an 18/6 light cycle using Icarus LED lamps, set 24-36 inches from the leaf canopy, and under a blue light spectrum for their first 10-14 days. 18/6 simply means 18 hours of light and 6 hours of darkness.

Can you water seed too much? ›

Too much water can drown the seedlings before they germinate or wash them away. Too much water can also move soil and bury the seeds, effectively choking them off from sunlight and nutrients. So while you don't want to be skimpy with how much water you apply, you do not want to overdo it either.

Can you water too much after seeding? ›

Watering your new seeded lawn is not as simple as dumping a ton of water on it every so often. Too much or too little water are both unsuitable conditions for your lawn to grow. Overwatering can wash away seeds that have not yet taken root. Too little water will dry out the little sprouts and they will die.

Why soak cannabis seeds in water? ›

The easiest way to germinate your cannabis seeds is to let them soak in a glass of water. The seed will absorb the water and due this process hormones will make the seed start to grow: expansion and elongation of seed embryo.

Is it better to soak or not to soak seeds before planting? ›

As a general rule of thumb, your seeds will sprout even if you don't soak your seeds before planting, but with soaking, the germination time decreases, and the germination rate increases. Seeds that have a continual flow of moisture to uptake have much higher chances of success.

Is it OK to soak seeds overnight before planting? ›

Overnight is usually good. Many sources recommend 8-12 hours and no more than 24 hours. Again, too much soaking and the seeds will start to decompose. If you use very hot water, the soaking time will decrease.

Do you water cannabis seedlings everyday? ›

Growth stage.

While the plant is young, it doesn't require a lot of water and flushing is one of the most common techniques for watering cannabis seedlings. Younger plants also need less frequent watering. However, as the plant grows and reaches the vegetative or blooming phases, it will need more and more water.

What is the best temperature for germination seeds? ›

Seeds require a certain temperature in order to germinate. Each plant has a specific optimum and a range within which germination will occur. The closer the temperature is to optimum, the quicker germination will occur. Most seeds germinate when the soil temperature is between 68° and 86°F.

Can you germinate seeds in tap water? ›

Many people don't think twice about using tap water when taking care of plants, but distilled water is best for your plants. Distilled water is the best water for germinating seeds, sprouting, and plants of all kinds.

Which seeds should not be soaked? ›

Avoid soaking small seeds such as lettuce, radish, and so on. Germination of these species often doesn't need a lot of help, and wet seeds are much more difficult to handle, leading to over-sowing and waste.

Should soaking seeds float or sink? ›

One method to check for seed viability is the water test. Take the seeds and place them in a container of water. Let the seeds sit for 15 minutes. If the seeds sink, they are still viable; if they float, discard, because they probably will not sprout.

Should you rinse seeds after soaking? ›

Make sure to strain and rinse the nuts or seeds after soaking to eliminate the residual water which contains the absorbed enzyme inhibitors and toxic substances. Once you have given them a good rinse, enjoy them immediately or store them in your refrigerator for later.


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