The fruit planters, hanging flowers and potted herbs are fertilized with a controlled-release fertilizer every six months as well as other fertilizers, such as trace minerals for the lemon, to meet a specific plant's needs. Of course, in a greenhouse. Every greenhouse grower has been lured by the idea of fresh tomatoes year round. I'm no exception. Tomatoes are my main crop.
Tomatoes grow easily in the greenhouse.
Although the blossoms are self-pollinating, the fruit set best when you shake the open flower clusters around noon, three times a week. Trellising the tomatoes, however, has been a challenge. The main problem is getting prolonged production from indeterminate greenhouse tomato varieties that grow quickly into the overhead glass. With each crop, I've had to pull the varieties out after only a few months of producing because of a lack of space and whitefly infestations. It wasn't until my third experiment with trellising that I got satisfactory results.