Why do our Roma tomatoes have no growing tips? They are growing in the greenhouse.
If you mean that the plants are not branching out, this can happen if they are not getting enough light. If you can get them more light that will help. You can also force them to branch by pinching the very top off the plant. This will remove the terminal node and force side nodes to grow,
the clemitus mantana rubins i planted last year , has grown really well but has no buds on it this year am so disappointed
Growing roma tomatoes. They are browning on the bottom and not ripening. What can I do about this?
This is blossom end rot. This article will help: https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-blossom-rot.htm
I am growing romas for the first time and so far more than half my tomatoes end up with brown/black bottoms and I have to throw them away. What is that or what causes it? Too much water/not enough? Any advice would be greatly appreciated.
This is blossom end rot. You don't need to throw away the tomatoes, as this doesn't affect the fruit itself taste wise. Simply cut off the affected end. The following article should be of some help to you: https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-blossom-rot.htm
What is the best fertilizer for plum tomatoes? Should I pinch back every offshoot or let one or two produce?
Pinching shoots allows the main plant to produce more; however, leaving one or two should not make that much of a difference. These articles should help: https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-fertilizer.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-plant-suckers.htm
Our La Roma tomato plant is healthy and growing well, but we have discovered that that slugs or worms are eating into the fruit and devouring it from the inside. How can we stop these worms from destroying the fruit? Do we need a spray or insecticide to combat this? Any info would be greatly appreciated.
This article should help: https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-hornworms-control.htm
I am planting my first garden. I have a few tomato plants (Beefsteak and Roma) and some herbs intermingled in half-whiskey cask planters. A few of my small green Roma tomatoes have black bottoms (as opposed to being all green). Should I do something about this, or is it normal?
They have blossom end rot. This article will help you:
https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-blossom-rot.htm
Should I remove suckers from my Romas? Since they are determinate, I wasn't sure. With indeterminate varieties, I leave them and tie up 2-3, removing all the others.
This is highly debated among gardeners, with no right or wrong. This article may help: https://www.gardeningknowhow.com/edible/vegetables/tomato/should-you-prune-tomato-plants.htm