2nd Aug 2011 5 Comments »
Last time we found how to find the perfect pot size for autoflowering plants and now we need to see what to put in that pot.
Almost all autoflowering cannabis plants are very tough and can grow in almost any soil but how well they can grow is another question.
Most of the commercial cross-breed hybrids are very picky and can stay very short and yield very small amounts if they don’t receive adequate soil or soilless mix. When buying your soil/soilless mix you need to think about some aspects that are involved in the plants well being.
Light or heavy
First thing you need to know before buying your growing medium is – autoflower plants love to grow in “airy” growing medium. Airy means that the growing medium should be very spongy and allow the root mass to penetrate it well. If the soil is not “light” enough then the roots will struggle to penetrate the ground and that will stress the plant. Heavy soil will also stress the autoflower plant by not allowing the roots to get enough oxygen and not allowing the water to penetrate the soil, leaving some dry spots in the middle. If the growing mix is too “light” then roots won’t be able to hold, support the plant and it will easily roll over. Too light soil will also struggle to hold water and will dry up in short amount of time.
This means that you should look for a growing medium that is airy, but if you can’t get a hold of such a thing then ad some Perlite to increase the water drainage and root penetration.