Harvest mint shoots as you need them by cutting the shoot with kitchen shears. The more you clip shoots of mint, the more the plant will branch and grow.
Watch for signs your Himalayan mint is preparing to flower. The plant will produce a flower bud, beginning in July. This mint continues flowering through September. If allowed to flower, the leaves taste less minty.
Cut back all mint stalks when the plant prepares to flower, trimming them to 1 inch above the ground.
Continue to harvest individual shoots as needed while your Himalayan mint regrows.
Cut the mint down to 1 inch above the ground next time it prepares to flower, and again once more during the growing season.