I'm growing plum tomatoes and yellow bell peppers using the Topsy Turvy that hangs upside down. I have them placed in full sun, which they get for 6-8 hours a day. I have lots of tomatoes and peppers, but the tomatoes are forming dark brown bottoms before they can fully develop into even the size of a cherry tomato. Can someone tell me what's happening and how to prevent this?
It is blossom end rot. This article will help you with that:
https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-blossom-rot.htm
Your tomatoes have blossom end rot. Get special formulation from garden shop for this and spray it on. I think they said it doesn't get enough water regularly. Must be regular watering; not a lot at one time.
When using upside-down planters for tomato and green pepper plants, should watering patterns be altered in any significant ways?
They are containers, so they should be watered daily since the plants roots cannot grow to find water on its own.
I have my tomato plants in a 5 gallon bucket hanging up to mimic a Topsy Turvy, but one or two of the leaves on all plants are turning yellow. I keep them watered and fertilized with adequate drainage. I have 21 plants; only 3 or 4 are doing this.
The following article should be of some help to you: https://www.gardeningknowhow.com/edible/vegetables/tomato/yellow-tomato-leaves.htm
I have tomatoes in a hanging type of container and lettuce in a raised table, with mesh underneath. If we water once a day, the lettuce looks limp and wilted after a few hours. We started watering two or three times a day, and the lettuce is perking up nicely. Am I doing the right thing? As for the tomatoes, the container does not contain much soil. . . 1 bag of potting soil for 2 tomatoes. I usually check the soil around 2 or 3 times in the afternoon, and if it looks and feels dry, I give it more water. Is this the right thing?
Yes, this is absolutely right. Plants in containers need alot more water than plants in the ground because they cannot spread their roots out to find more water. Plus, water in containers evaporates far faster than water in the ground. As long as your plants are not in standing water and are draining well, you almost cannot overwater them on high temperature days.
Can tomato plants get too much sun? Will too much radiant heat from the side of a building hurt them? If they are by a building, can you compensate for the extra heat by giving extra water? I have Topsy Turvy planters hanging off a south facing wall of my garage, and they get about 13 hours of sun a day. I am worried about the heat.
This article will help:
https://www.gardeningknowhow.com/edible/vegetables/tomato/how-much-sun-do-tomato-plants-need.htm
I have planted 3 tomato plants (5 to 6 months ago) hanging upside down in plastice buckets. The plants have grown very long, but w/lots of brown leaves on them and have never given any fruit. They are in direct sun in south Fl. (Ft Lauderdale area) and get watered when it rains (almost every day this time of the year) or when I feel the soil is dry. Can I cut the plant back at the main trunk to have it keep growing or start with new plants? I used MIRACLE GROW vegetable soil. What an I doing wrong?
In your part of the country, the plants may need to be watered twice a day and they need to be watered deeply to make sure the water gets to the root system. While you used Miracle Grow soil, a heavy feeding plant like a tomato may have depleted the nutrients quickly. We recommend using a water based fertilizer like Miracle Grow or a slow release fertilizer like Osmocote.
Cutting the main trunk will most likely kill the plant, but if you just cut off the dead leaves and branches, then you should see new branches grow.
First time gardener of growing tomatoes. Any special instructions of the growing of these tomatoes? Fertilizer, trimming, bug spray, and how much water?
These articles will help you:
https://www.gardeningknowhow.com/special/containers/upside-down-gardening.htm
https://www.gardeningknowhow.com/edible/vegetables/vgen/vegetables-grown-upside-down.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/tips-for-growing-tomatoes.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/watering-tomato-plants.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/should-you-prune-tomato-plants.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/how-much-sun-do-tomato-plants-need.htm