We’ve got half a bed of tomatoes in the garden that needed twine to train them to grow vertically. The tomatoes are planted 9 inches apart and alternate which direction they will be trained to grow. Growing them this way ensures they will get adequate light and space when trimmed properly.
The tomatoes are transplanted into our little Mittleider in garden green house. Recently we started the process of growing vertically to maximize the space and production of tomatoes. In the picture below you will see the heavy square baling twine we use to grow vertically.
All the tomatoes are grown in one row with 9 inches of space between them. The twine is tied off at the bottom on a wire attached to our t-posts. The wire runs the length of the grow box and is 3 1/2″ above the grow box. At the top of the t-posts are two more heavy gauge wires running the length of the grow beds. We then alternate every other tomato plant and use a releasing knot to train the tomatoes to grow away from one another and maximize space. This ensure they get maximum air and sunlight. In this picture below you can see the “V” pattern formed with the twine. You’ll also notice extra twine hanging from the top. This allows me to lower the plant as we pick all the tomatoes from the bottom and the plant has grown all the way to that top wire. And if you do your part they will grow that tall.
In the bottom picture you see where the twine is tied to the bottom heavy gauge wire. If you tie the twine to the tomato plant you risk damaging it in two ways. As the tomato grows the stem is going to get thicker. If your twine is tied to it you risk the chance of strangling the tomato. Additionally, if you’re tied off at the plant you risk damaging or even pulling out the tomato if something or someone pulls on the twine.
When wrapping the twine It’s important to wrap the twine around the plant and not the plant around the twine. By doing the later you risk damaging your tomato plant. Also, as you wrap towards the top take extra care not to damage or break off the growing rip, also known as the terminal bud. Doing so I’ll stop the growth of your plant. I stop sever inches short of the terminal bud to ensure that the twine doesn’t damage it.
You can also grow other crops vertically such as crooked neck squash, eggplants, cucumbers and even melons. We will have posts on growing the vertically in the future.