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what temp to germinate cannabis seeds

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 only sell feminized cannabis seeds, so there is no need to worry about removing male plants.

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.


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.

Regardless of where you get 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.

As the seedlings mature, remove any sickly, male, and underdeveloped plants from your garden. Focus your attention on caring for the strong female plants that have the potential to create for you a massive rich harvest. The next step is to select the best mother plant for the cultivation of super clones.
Cannabis seeds need only water, heat, and air to germinate. They do not need fertilizer, extra hormones, or any light (right now). All the plant needs at this time is contained within the tiny seed.
Properly germinated seeds (ideally strong, mature and under a year old) will sprout in 2-7 days when kept moist at 70-90°F (21.1-32.2°C) with pure water.

Put soil in a pot and pour water until water fully drains out of the bottom of the pot. Poke a hole, around

Germinating Techniques

Comment by Ted Joneson September 17th, 2019

When the cannabis plant develops, those leaves turn yellow and die, this is quite normal at this stage. A slight yellowing on the first real leaf might be possible, it is translocation as your plant is now trying to turn food from the soil into twigs, stems, branches, leaves. Same goes for the first set of real leaves, and the subsequent set of leaves that have 3 lamina. Although these real leaves will last a little longer, their life span is also limited. Over watering here is the most common mistake of the newbie grower. It is important to delicately supply the correct amount of lighting – keep the seedling a few inches away (if you are using fluorescent) from the lamp.

It is important to understand that during a seedlings growth a lot of activity is happening “behind the scenes”. This means that in this growth phase the seedling is primarily focused on developing a root system while above-ground growth appears slow. New growers often think they are doing something wrong so they tend to over-water or over-fertilize at this point. Little do they know the plant is speedily right on track.
The new developing fragile root system requires an optimum constant supply of water and warmth. Too much water and you will drown and rot your roots. Too little water and your fragile root system will dry up.
The seedling growth stage lasts for about two to three weeks after seeds have germinated.