When should I cut the tops off my tomato plants?
Late season
To speed ripening late in the season, remove the growing tip of each main stem about four weeks before the first expected fall frost. Called "topping," this type of pruning causes the plant to stop flowering and setting new fruit, and instead directs all sugars to the remaining fruit.
ANSWER: You can prevent your tomatoes from growing too tall by pruning them. Pruning also encourages the plant to grow fruits instead of creating more foliage. Always use clean, sterilized shears when you prune to avoid spreading disease in your garden.
Pinching out your tomatoes is an essential part of tomato plant care. The reason for this is the tomato plant is a naturally bushy plant, and if you let it grow as it wants to, it will put all of its focus into growing foliage at the expense of fruit.
Indeterminate tomatoes can be topped throughout the season as needed as they will continue to grow back. At the beginning of the season, top indeterminate tomatoes to improve growth or prevent leggy stems before fruit set. Mid-season topping can control height and unruly growth when the stems outgrow their supports.
The average height of a tomato plant depends on the type. Many determinate tomato varieties grow 5 feet tall at most, while indeterminate tomato varieties can grow to a height of 8 feet or taller! What is this? Some indeterminate tomato varieties can grow to a height of 8 feet or taller!
To grow the strongest tomato plant possible, prune side stems below the first fruit cluster. As a tomato plant matures, its lower leaves begin to yellow. Pinch or prune yellowed leaves to prevent disease, improve the tomato plant's appearance, and help the plant keep its energy focused on fruit production.
Even if a large section of stem breaks off, the plant will continue to produce. The key to successful recovery is to prune the plant to have more than one main stem. When a tomato plant is young, allow its lowest sucker to grow in addition to its original main stem.
If you have plenty of big blooms but no tomatoes, it may be too cold and wet or too hot and dry. This results in what is known as blossom drop and will, of course, make it much more difficult for plants to produce fruit. Poor pollination – Weather can also be a factor with pollination.
Top the tomato plant when it grows to the top of its cage or stake. By doing this, it allows more of the plant's energy to be directed at growing the fruit as opposed to the stems. Cut off each top vertical stem with shears, removing the stem 1/4 inch above where a side shoot diverges from the main vertical shoot.
Growing Tomatoes : How Do I Pinch the Tops of Tomato Plants?
Where do you pinch out tomato plants?
Cordon tomatoes - removing side-shoots
However, these vigorous plants naturally produce side-shoots from the joints where leaves sprout from the main stem. These side-shoots should be pinched out to keep plants growing vertically on just one stem.
With Cordon tomatoes, the upright varieties as the plant grows, it is essential to remove all new side shoots, which appear at the junction between the upright stem and the branch.
When lower leaves start getting yellow it is a sign that they are shutting down and they should be removed before they become a sugar drain on the rest of the plant. As long as they are green they are photosynthesizing and producing sugars for fruit production.
If you're like most overanxious gardeners, you probably started your tomato seeds too early. When tomatoes and other transplants are grown under the relatively low light conditions experienced in most homes, they tend to get long and leggy as they stretch in search of light.
Pluck off all blossoms and any fruit for at least a month after transplanting, until the plant is at least two feet tall so it's forced to direct its energies toward establishing a strong root system.
If you are planning to plant the tomato plants deeply (tomatoes can form roots along the stem if it is buried), then you should remove the leaves. However, this is not critical. If the leaves are buried, they will not be able to photosynthesize, so they will be of no benefit to the plant.
