[header] How to grow herbs from cuttings [title] Take a cutting from an herb plant between spring and fall, when the plants are healthy and growing steadily. [step] Many herbs slow down growth when temperatures begin to drop, so cuttings taken during cooler weather may not root. [title] Avoid cuttings on plants that are currently flowering. 
[step] The cutting is not likely to root strongly while flowering because the plant's energy is focused on the flowers, not the root. If you do take a cutting from an herb that is flowering, remove the flowers from the cutting before propagating.