The best way to do it is to use your fingers, as basil stems are not that tough. Do it above all the nodes.
Flowers are notoriously famous for sucking out any plant’s energy into maintaining them, and basil is no different. What happens with basil is, once it blooms, it spends its nutrients into producing seeds at the expense of growing stems and leaves, which can stunt its upper growth.
So, it will be a good idea to remove the buds the moment you spot them, in order to help the plant use its energy into growing upper stems and larger foliage.
Well, the best way to stimulate basil to grow on the top section, while also making it visually appear taller than it is actually, is by pruning it from the lower sides.
Start doing this when the plant achieves a height of about 2-3 feet. Take away the side stems and leaves, leaving only the straight ones at the top. It will help basil to focus on the remaining top growth, utilizing all its energy into it.
After you have taken out all the lower growth, the plant will have a top heavy structure, and this is the time to provide support to it to save it from getting toppled down with wind, or accidental touches.
You can go with any wooden, bamboo, or plastic pole to support basil. Using ropes, gently ties the main stem to the support pole, making sure you are not tying them too hard, as it can damage the plant.
As the plant will continue to grow, keep making changes to the ties and support pole, in accordance with its height.
Some Quick Tips on Maintaining Basil as a Shrub
- Basils loves light, and grows THE BEST in full sun exposure. Do make sure the herb gets a minimum of 5-6 hours of direct sunlight every day.
- Regularly feed the plant to support its upward growth. Use a balanced liquid fertilizer, dilute it to 1/2 of its strength, and use it once in 6-8 weeks.
- Refrain from overwatering basil, and do it only when the topsoil feels a little dry to the touch.