Indoor Herb Gardening: Fresh Flavor on Your Windowsill All Winter

Herbs Through History

Flavor, dye, perfume, medicine, magic—herbs have done it all. Culinary herbs remain essential to great cooking.

Replicate Outdoor Conditions

• Sunny windowsill (4–6 hrs sun).
• Container ≥6–12 in. deep.
• Quality nursery plants + advice.
• Small tools, gloves, organic fertilizer, small pots.

Soil Is Critical

Top-grade potting mix + organic fertilizer. Add perlite if too fine. Fertilize at potting; top-dress with liquid organic if growth lags.

Transplanting Up

Move up 1 in. pot size at a time (2″→3″). Don’t disturb roots; avoid stem bruising.

Aggressive Spreaders Get Their Own Pots

Oregano, mints, lemon balm, bee balm—plant solo or they’ll take over.

Drainage Myth

Gravel in bottom wastes root space. Use a square of window screen over the hole instead.

Companion Planting Ideas

• Italian: sweet basil, Italian parsley, oregano, marjoram, thyme.
• Scented: lavender, rose geranium, lemon balm, lemon thyme, pineapple sage.
• Salad: garlic chives, rocket, salad burnet, parsley, celery.
• French: tarragon, chervil, parsley, chives, sage.

Light, Water, Harvest

• 4–6 hrs sun; supplement with grow lights 3″ above plants (14 hrs/day).
• Shade in extreme heat; insulate from cold glass in winter.
• Water when meter says so; room-temp water only.
• Snip often to encourage bushy growth.