The downside is that these smaller containers tend to dry out very quickly.

In theory, a grower could keep a dozen or more future moms alive for many years using only 15 watts of fluoro or 3 watts of LED. Every once in awhile a new cutting can be taken to restart the whole process. If the rootbound condition persists despite being treated well in every other aspect, new growth will come very slowly and will be miniaturized.Īfter pushing the plant with this technique for about 6 months or so, adding even a small bit of fresh soil beneath a rootbound plant by raising it slightly will restore some vigor and extend the process for a very long time. Once a plant becomes rootbound in veg, it tends to shed fan leaves and generally lose vigor. Growers have pointed out that in order for a plant to survive it has to grow continuously. Many times I am trying to maintain moms for future use so I want to keep them healthy but as compact as possible. SciFi mentioned an interesting bonsai technique above. This also helps make the most use of the container space it has been given and with the LST it really puts the brakes on stretchy seedlings' height. It seems that the upper portion of the soil tends not to include many roots, so when I transplant the seedling or clone I raise it up a bit so there is as much new soil beneath it for the roots to expand into as possible. If a grower is planning to LST you can use the opposite technique.

Maintaining a temperature range of 60☏ to 80☏ (15☌ to 26☌) allows the stems of the seedlings to thicken. There is a direct correlation between air temperature and cannabis seedling stretching. I have noticed the little white nubs on the lower stem where the plant is trying its luck looking for the media and I have always wondered if they would root nicely. While striving to provide direct light to your seedlings, it’s crucial to ensure that the light source does not emit excessive heat. Thanks OP that is an interesting experiment.

Leggy marijuana seedlings