Thai basil and African Blue basil both thrive in warm weather and strong light, but they are not identical plants. Thai basil is commonly grown from seed, while African Blue basil is a sterile hybrid usually propagated from cuttings.
Both make attractive culinary plants and can stay productive for months when they receive good light, drainage, and regular harvesting.
Give Basil Plenty of Sun
Basil performs best in full sun. University of Minnesota Extension recommends at least six hours of direct light for strong growth; its herb-growing guide covers basil and other culinary herbs.
Know the Difference Between the Two
Thai basil is generally started from seed and has a distinctive anise-like flavor. African Blue basil is a hybrid that does not produce viable seed, so it is maintained by cuttings.
If you want a readily available culinary basil for comparison, Sweet Italian basil is a familiar warm-season choice for beds and containers.
Use Well-Drained Soil
Basil likes even moisture but does not tolerate soggy roots. Water when the upper part of the root zone begins to dry and make sure containers drain freely.
Harvest Regularly
Pinching stems just above a pair of leaves encourages branching. Frequent harvest keeps plants compact and productive, especially if you remove flower spikes when leaf production is the goal.
Protect Basil From Cold
Basil is highly sensitive to frost. In colder climates, bring container plants indoors before cold weather or take cuttings to overwinter. Our indoor herb gardening guide explains how to manage light and watering inside.
Use Basil in a Larger Herb Garden
Thai and African Blue basil can be mixed with other warm-season herbs in a kitchen garden. Our Italian herb garden guide offers ideas for combining basil with oregano, parsley, rosemary, sage, and thyme.