I grow a lot of flowers from seeds. Some I start in 6 packs, others I just directly sow into a flowerpot. I directly sowed some cut and come again zinnia seeds into a large flower pot and they are coming along nicely. They are about 6 inches tall now. and planted about 3 inches apart. I don't overhead water them, but I use a watering pail with a long spout so that the water seeps into the soil right below the seedlings. Whenever we have a heavy rain though, the seedlings get knocked down. Would having planted them even closer together have alleviated the problem every time we have a heavy rain? Thanks for any advice.