Oh! I've been meaning to ask! Where does one get cheap/free pots for seed starting
I've done this, and it works well. Sometimes the tube wants to fall apart, so I pack them in together in something like a roasting pan.Tp tubes. Rip the end a little to fold it inward for the bottom.
Here's something I do for larger pots. It's reusable, fairly gentle on the roots, and free.
Save your quart sized yogurt containers, or anything like that with a lid. I've used cottage cheese and sour cream containers, and asked friends to save some for me. I have gobs saved up/donated by now.
Cut the bottom off the container. Punch a couple drainage holes in the top and put it back on. Turn it over, and viola! There's your pot. Granted, this does take more potting soil to fill.
The day before planting day, water thoroughly. You want the soil moist. When it's planting time, dig the hole and add any amendments. Carefully peel off the lid (bottom of the pot). Most times for me, the soil/root ball wants to slide right out of the container, so support the bottom and get it in the hole.
Rinse and save the container for the next year.