Grow Herbs Indoors with Just a Sunny Window

Indoor Herb Essentials

Herbs love full sun and well‑drained, slightly dry soil. Indoors, place them at a south‑ or southwest‑facing window with 4–5 hours of direct sun. North windows rarely suffice. Even with a sunny window, a grow light (often sold with kits) dramatically improves results.

Best Herbs for Indoor Growing

Chives, cilantro, lemon balm, mint, oregano, parsley, rosemary, and sage tolerate indoor conditions. Basil is trickier but worth a try. Expect leggier growth than outdoors, but flavor remains vibrant.

Watering: The Finger Test

Insert your index finger to the first knuckle. Dry? Water. Moist? Wait a day. Overwatering rots roots; underwatering is easier to correct.

Container Choice Matters

Terra‑cotta (porous) beats plastic/ceramic for herbs—it breathes. Drainage holes are mandatory. Use a saucer, but empty collected water. Clay saucers are porous; place a non‑porous tray beneath. When repotting, use container potting mix (cactus mix is ideal)—garden soil is too heavy.

Fertilizing Indoors

Without garden soil nutrients, herbs need a light boost. Use balanced fertilizer (10‑10‑10 or 20‑20‑20) or liquid fish emulsion at half strength every other week during active growth. Under‑fertilize rather than over‑fertilize.

Temperature & Soil Nuances

Herbs like 65–75°F, same as people. Cool, overcast days slow evaporation—water less. Keep leaves off cold window glass. Most tolerate 50s at night, but basil needs ~70°F.

Get inspired by indoor herb garden ideas. Learn how to grow herbs indoors this winter.

Portable Indoor Herb Garden