How do you harvest Thai basil seeds?

Use a fine colander for basil seed collecting, as the black seeds are very tiny. Cut off the brown and spent flower heads and let them dry for a few days in a warm, dry location. Crush the heads over the colander and pick out the old petals and any chaff. Basil seed collecting is that simple.Click to see full answer. Just so, how do you harvest Thai basil?If you make a mistake, cut the stem all the way back to the next set of leaves. Unless, you are growing Thai basil as an ornamental, cut the flower off several days before harvest so the plant can focus all its energy on the leaves. When you harvest your growing Thai basil plant, take it down to about 6 inches.One may also ask, should I cut the flowers off my Thai basil? Check your basil plants frequently for flowers, and if you see any, pinch them off right away. If the flower stems are too woody to pinch (often the case with Thai basil), cut them off with shears. A plant allowed to flower will soon go to seed, stop growing, and die, so be vigilant about removing flowers. In this way, what do Thai basil seeds look like? Mature basil seeds are small, round, and black. Separating the seed from the chaff (the dried bits and dust) can be a challenge, but with a little practice you’ll find a technique that works for you. Dry carpels will drop some seeds if you stir them in a bowl or shake them in a bag.Does Thai basil come back every year?Also known as common or sweet basil, basil (U.S. Department of Agriculture plant hardiness zones 2 through 11 for outdoor gardens) is a true annual, which means it needs to be replanted each season. In most circumstances, it does not grow back after a year.