For any gardeners out there, just wondering if making these pallet wood starter trays and filling them with these soil blocks or toilet paper pots makes sense to them? Wondering specifically if the toilet paper pots would cause the roots to spiral around inside the pots which would be not good for transplanting later? As I understand it, the soil blocks are better because the roots will naturally air prune and not spiral around.
When you can't plant and tend to your garden, you end up planning for the next season. So, that is what I have been doing.
I have made the TP roll pots. Maybe it's the Costco TP, but the pots tend to fall apart, not at the bottom, but along the spiral. I've abandoned TP rolls, even though they made great little pots.
I start a lot of plants. Last year I did 60 tomatoes, 12 peppers, 10 basil, and a few other things I don't recall. TP rolls seemed like a great idea, as I would just plant the whole thing. Roots grew through the cardboard just fine, and I'd just plant the whole thing when it was time to put them out.
The falling apart around the spiral bit was a big draw back. So I tried making my own pots out of regular newspaper. With only somewhat better success. Some inevitably fell apart. I make my own potting soil, so using bigger pots was not going to cost me an arm and a leg that way.
Now I use cottage cheese containers as pots. Quart sized yogurt containers work well too. I'll try to describe how I make them, as I don't have pictures.
You need to keep the top of the container, and put a few holes in it for drainage. Cut the bottom off. Some types of plastic are easier to cut than others, and sharp scissors help a lot.
Put the top of the container back on, turn it upside down, and that is your pot. The top is now the bottom. Fill it with potting soil, soak it well, and plant your seeds.
(Weeks go by... plants get big... bigger pots give them room to spread their roots...)
When it's time to plant them in the garden, dig the hole. Take the top of the container off the bottom, set the pot in the hole, wiggle it a bit, and slide it up over the plant. Fill in the hole and water well.
The taper of the pot (draft angle) helps it come off the soil without manhandling the roots. This is important for some plants, like melons, who don't like their roots to be disturbed.
I have a friend who saves me her yogurt containers, and I have gobs. Some of them are going on their third year, so the do last pretty well.