Michael Jeffers Staff asked 14 years ago
I installed a greenhouse for the first time this year. I have tomato plants grown from seed and from purchased seedlings and they are all failing: the plants are small and the foliage is speckled and quite yellowed. I have tried feeding them tomato food with no success. I recently put in a cucumber plant bought at a plant sale and the same has happened. Is this because it’s too hot, too cold, too much direct sun, or what would you suggest? Many thanks