Growing Herbs Indoors Through Winter

By Marcus Williams · October 8, 2026

Which Herbs Thrive Indoors

Basil, chives, parsley, thyme, oregano, mint, and rosemary all grow indoors with adequate light. Cilantro and dill prefer cooler temperatures and grow well on a cold windowsill. Rosemary and lavender need more light and drier conditions — they are the most challenging indoor herbs.

Light Requirements

Herbs need 6-8 hours of direct sun or 12-16 hours under grow lights. A south-facing window provides the best natural light. East and west windows work for lower-light herbs (mint, chives, parsley). If herbs are leggy and stretching toward the light, they need more — add a T8 fluorescent or LED grow light 6-12 inches above the plants.

Container and Soil

Use pots with drainage holes — herbs hate sitting in water. Terra cotta pots breathe better than plastic, preventing overwatering. Fill with a well-draining potting mix amended with perlite (1 part perlite to 3 parts mix). Herbs prefer slightly lean soil — avoid rich mixes with added fertilizer.

Watering Discipline

Most indoor herbs die from overwatering, not underwatering. Water when the top inch of soil is dry to your finger. Water thoroughly until it drains from the bottom, then empty the saucer. Rosemary and thyme prefer their soil to dry almost completely between waterings. Basil and parsley prefer consistently moist soil.

Harvesting for Continuous Growth

Never remove more than one-third of the plant at a time. Pinch basil at leaf nodes to encourage branching — unpinched basil grows one tall stem. Harvest chives by cutting to 2 inches above soil — they regrow quickly. Remove flower buds as they appear to maintain leaf flavor and production.

Common Indoor Herb Problems

Whitefly and spider mites thrive in dry indoor air. Inspect leaves weekly and treat with insecticidal soap if you see pests. Powdery mildew appears as white film on leaves — improve air circulation with a small fan. Yellowing lower leaves usually indicate overwatering or insufficient light, not nutrient deficiency.