To each gallon of water add 3 - 4 tsp. Arm and Hammer Baking Soda. Pest Note 7, Powdery Mildew . What To Look For When Buying Seedlings Bigger is not always better. The smaller plant may be less developed, but will take root faster in your garden.
Quality is what's important.
Look for dark green leaves and a thick stem with no yellowing or shriveling. Be sure to check the under side of the leaves for insects or clusters of eggs. Pop the cell out at the nursery and only buy the ones without matted roots. Seeding Indoors I like to start growing seedlings indoors in February, but it's not too late to start now. It's easy to do and you can grow varieties that are not available at the nursery.