To prune tomato plants, use clean, sharp cutters, and make clean cuts against the main stem of the mother plant. Prune out sucker growth, mildew or fungus from a tomato plant with instructions from a horticulturist in this free video on growing tomatoes.
Hi, I'm Stan DeFreitas, Mr. Green Thumb. We're at Willow Tree Nursery in St. Petersburg, Florida. One of the questions that we get a lot of is where to prune a tomato. How to prune? Why to prune? Well, there's a number of reasons. Sometimes with sucker growth, you're going to remove suckers, which we have here. We also have a little bit of leaf miner, which is this little squiggly line on the leaf. And sometimes the best way to get rid of a problem is just to trim it out. So if you're seeing, like, some mildew or some fungus on your plant, or maybe you've just got a sucker like we have here, come back in against the main part of the mother plant, and make a nice, clean cut. Take your cutters, come in, and make the cut. And sever this part from the mother plant. Now if this happened to be healthy growth, which this has some leaf miner, so I wouldn't probably use it, you could actually take a piece like this, put in it some root-one, put it in some soil, and you'll be surprised that you can get your little tomato plant to start to root, which is true for a lot of plants. But this plant will root just about as easily as, let's say, a coleus would, which is real simple. Pruning plants should be done for a reason. Always use good, clean cutters, and always make sure you make a nice, clean cut against the main stem, 'cause too much pruning could cause you trouble. A lot of folks get in to pruning way too much on a plant. Only prune what needs to be done. Make sure that you prune it quickly, a nice, clean cut, and you should have good success. Remember that we get all our energy from the foliage, so don't do any more trimming than you need to. All these leaves produce food to make big, luscious tomatoes. I'm Stan DeFreitas for askmrgreenthumb.com