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cannabis seed germination diagram

Be mindful to increase your watering as the plant develops. When it’s young, your plant will need water close to the stalk, but as it grows the roots will also grow outward, so start watering further away from the stalk in the soil so roots can stretch out and absorb water more efficiently.

Once your seed has germinated, or sprouted, it’s ready to be placed in a growing medium, like soil. The tap root will drive down while the stem of the seedling will grow upward.

Harvest happens sometime between September and November. This depends on your local climate, as well as the weather that particular year—one year it could be the end of September, the next, end of October, and growers in the Pacific Northwest will have to pull down their crops earlier than those in Northern California.

Marijuana light cycle: 12 hours a day

Vegetative stage

If you buy a clone from a grower or breeder it will be a seedling, so you can skip the seed germination phase.

At this stage, the plant is vulnerable to disease and mold. Keep its environment clean and monitor excess moisture. Be sure to give it plenty of light.

Even if growing outdoors, a lot of growers will start their seeds inside under an artificial light to help them through this delicate stage of marijuana growth.

Notes on marijuana growth phases

Cannabis plants go through a series of stages as they grow and mature, and those different growth stages call for different amounts of light, nutrients, and water.

It’s important to know these stages and how long each lasts to know what the plant needs and when. Knowing where your cannabis plants are in their life cycle will dictate when to prune, train, and trellis your plants, and when to harvest.

Cannabis seed germination diagram

For indoor plants like flowers and herbs, many follow the usual 7 to 10 day germination period, but it’s well worth researching the exact species you’re growing to inform yourself of the exact length of time, as well as any specific temperature or water requirements your seed might need to thrive.

We have no doubt you’ve probably already read tons on the huge amount of germination methods available to pick from, like the popular paper towel method or the arguably inefficient glass of water method.

For some plants like ghost peppers, these seeds can take an entire month to germinate, so make sure to do your research for these as well so you’re not expecting to see signs of life too quickly, or give up on them too soon.

How Long to Germinate Seeds of Other Plants?

In reality, without a successful way to germinate seeds, you’ll have nothing to work with.

Certain species are known for having seeds that have a higher or lower germination rate. In general, plants that give off many seeds (such as dandelions) have a lower germination rate as the plants goal is to produce lots of seeds, not necessarily quality seeds. A plant that produces less seeds such as a geranium, will often have a higher germination rate as this plant produces fewer, higher quality seeds.

Germinate Seeds With Grobo

Firstly, clean hands. We carry loads of dirt, oils, and other gunk on our hands. If you must touch the seed when planting it, make sure you’ve washed your hands first. However, if possible, it’s preferable to pour the seed straight from the container it came in directly into your chosen container for your germination stage to eliminate this possible contamination. You could also use small tweezers to move the plant.

Ignoring the environmental factors listed above, germination rate is most influenced by how long the seed has been dormant. The seeds with the highest germination rate will be those planted within a year of being harvested from the mother plant. This is because they are newer seeds, and are more viable.

Cannabis seed germination diagram

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How to tell if your plant is a male or female

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Cannabis Growth Timeline

Covid-19 Plan

Female: Two pistils (the pistil contains the reproductive parts of a flower) will be growing on the buds (flowers grow above these leaves, one cluster on each side).

Male: Small green sacs full of pollen will be seen on the node areas.

The quality of your plant depends on your knowledge of the cannabis growth stages and the lifecycle of your plants.

5. Flowering

1. Germinating: 1-7 days
2. Seedling: 2-3 weeks
3. Vegetative: 2-8 weeks
4. Pre-Flowering: 1-2 weeks
5. Flowering: 6-8 weeks
6. Harvesting

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