I have tried growing maples and this is my fifth attempt. I started vermicomposting in May of this year. It is direct vermicomposting (earthworms in the pot, and feeding them in the same pot that I will grow my tree in).
I first started with batches of vegetables without any leaves to cover them up. For several months I did this until the smell became not as strong as ammonia but definitely nitrogenous. Since then I've added batches of already fallen leaves. I haven’t given them wood at all, just scraps and leaves. I continued adding batches of carbon rich leaves until now. I tried adding nitrogen again but I got that nitrogenous smell again. I have only aerated the soil once because of the worms.
I have a mature sugar maple seed in the freezer to stratify (mimicking winter). I have had it in there since June or July.
I plan on planting it on March 21st when I know it is spring. But I am a bit worried about my maple. Cold snaps happen here in March and sometimes it extends all the way out to the end of April. But March is the best time to plant the maple. I know maples are cold hardy (and heat hardy as well, we have hot summers here, up to 100+). But I would still be worried about a tiny little seedling in a cold snap.
I once had 2 trees that survived for 3 years (I planted them from seed in 2012 I think) but that third winter was bad for those trees. My trees kept getting wounded in the winter. I used tape like a bandage but after those wounds healed, there were more wounds and all these wounds drained the life out of the little trees. How did I know? No leaf buds even in May.
The reason I am worried about cold snaps is because I know that at least for some plants, cold snaps can cut off seedlings from their roots due to the cold weather.
Should I bring the pot inside in March and then plant the maple inside by the back door (it is a sliding glass door with a screen door) so that it can get sunlight without worrying about the cold? The pot is big, definitely big enough to hold a tree for at least 3 years.
I can tell my maple apart from weeds even as a shoot. My maples have bigger baby leaves than the weeds.
The kind of maple I am growing is a sugar maple. So should I bring the pot inside and plant it in March or should I just plant the maple outside in March where the pot is now (in a sunny spot on my patio)? In either case in February I plan to get the seed out of the freezer and warm it up before planting it from seed in March.