Cut your holy basil with a sharp knife just above the bottom two or three sets of true leaves. This should be done right before the day heats up, but after the dew dries off the plant. Leave enough leaves on the holy basil plant so that it will keep growing. You may harvest three to five times during the growing season if you do not cut it back too far.
Examine each holy basil sprig cutting for bugs and insects. Hold the sprigs upside down and shake vigorously to dislodge any hitchhikers. Flick off any visible bugs on the leaves.
Check the leaves for discoloration, disease and damage. Pinch off any of these leaves and discard.
Tie your holy basil sprigs together in bunches. Wrap a piece of twine or a rubber band around the bottom of the sprigs.
Hang the holy basil upside down in a dark, cool area. Dry basil at lower temperatures to keep the color and aroma in the leaves. Your holy basil will be ready to be stored in two weeks.
Pull off the dried holy basil leaves and place them in a dark colored glass jar with an airtight lid. Discard the stems. Use your holy basil within one year; after that it will lose its flavor, color and smell.