Learn More About Cannabis Seedlings

* Learn More About Cannabis Seedlings *

A young marijuana plant is called a seedling after it has gone through the germination process of creating the white taproot. sprouting the cotyledon, and when the seedling leaf appears.,

After it has created it’s first true leaves, it is now considered a seedling.


During the seedling growth stage, the

development of the root system speeds up very rapidly, while the green above is somewhat slower.

Cannabis seedlings need a minimum of 16 – hours of light to keep them in the vegetative state.

Many growers utilize highly efficient fluorescent lighting. The most commonly used fluorescent lighting  is the T5 and with these you can have both red as well as blue spectrum lighting.

Fluorescent lighting is commonly hung about 12 – 22 inches away from the cannabis seedlings.

Even though there are many other growers prefer to use HID lighting to supply light to their cannabis seedlings. With these types of lights the growth is much more rapid , although heat and electrical costs can certainly build up.

These lights are commonly hung about 2 – 3 feet away from the cannabis seedlings, which in this case you could supply light to many more seedlings than a fluorescent light.

The seedling stage is complete, once rapid foliage starts and this explosion of growth is caused by the root system that has spent the whole last stage of it’s life to develop.

When your plants enter this stage with their rapid growth, they will soon need to be moved into another room, or transplanted into a larger growing container for them to develop further.

Timeline For Germinating Seeds

48 – 72 Hours  

  • water is absorbed through the seeds’ shell
  • Radical or Taproot has sprouted and is visible

10 – 14 Days

  • The first roots are now visible.

21 – 30 Days

  • At least 50% of the seeds should now be rooted by the 21st day
  • After 30 days if there are seeds that have not sprouted, they are likely slow growing, bad seeds, have a very hard shell, and should be sacrificed,improper growing conditions, or whether a pest has inhibited growth.

When seeds have become well rooted, the overall growth of the plant will accelerate and the plant will begin to develop larger roots, lush foliage, and a larger stem.

After 4 – 6 weeks from the  germination of the seed the cannabis seedling will enter it’s full vegetative growth.

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