Basil Plant Care Spacing. A tomato plant (center) growing alongside basil. Grow 4 to 6 plants for everyday kitchen use.
Basil (ocimum spp.) is native to asia and the indian subcontinent. Basil plants should be spaced between 9 and 12 inches (22 and 30 cm) apart. This should help prevent botrytis (powdery mould).
Your basil plant should be pruned several times throughout the season.
Basil will grow in a very wide ph range between 5.1 (strongly acidic) and 8.5 (alkaline) with a preferred range of 5.5 (strongly acidic) to 6.5 (mildly acidic). It’s hard to remember how much space goes between each plant. Plants will grow fast in containers, so expect to pot them up a few times during the growing season. It is important to pinch tops of the holy basil plant when they are forming four or six pairs of leaves, this will make the plant grow bushier.