Rosemary, Lavender, Thyme, Myrtle, Sage, Geraniums and Curry.
Because of tight root systems, herb topiaries can dry out quickly. Check the soil every few days for dryness. When the surface of the soil is dry to the touch, water your herb topiary thoroughly. Letting the roots sit in water, or allowing the soil to go completely dry can cause leaf drop or even permanently damage your topiary.
Herbs prefer direct sun to maintain strong healthy growth. At least four hours of sun or more each day will prevent your topiary from dropping green leaves or putting on leggy new growth.
Keeping your topiary clean and dust free will help prevent pests from moving in. A mild dish soap at a ratio of 1 tsp. per gallon of water can be used as an effective, non-toxic pesticide.
To maintain green, healthy growth, feed regularly with an all purpose fertilizer.
Trim your topiary often. Pruning promotes new growth and stronger stems. Use your cuttings for cooking, or crush the leaves to release the fragrance into the room.