Got the seed greenhouse finished today; the frame is an old adjustable shelving unit. I took the warped particle board shelves out and replaced them with three pieces of 1" x 3" for support, then wrapped 1/4" screen fabric around the shelf supports so that the seed trays can drain without worrying about the shelf getting wet; it also allows the excess water to go into the trays below and for sunlight to reach each level. The frame was then wrapped with two vinyl shower liners attached with zip ties; the left front corner uses binder clips so it can be opened for easy access. The excess liner was attached at the back with more zip ties and attached to the frame with binder clips so it can be opened if needed. Total cost for this project, not including the shelving was under $30.
I also planted five varieties of tomato seeds today: Black Krim, Mortgage Lifter, Supersweet 100, Roma and Aunt Ruby's German Green. There's plenty of room left for the other veggies I'll be planting, including tepary beans, tomatillo, Japanese Shishito Sweet Peppers, Purple Ball and Petch Siam eggplants, pickling cucmbers and yardlong beans.