Complete Guide to Caring for Rosemary Plants

Overview

Native to the Mediterranean, rosemary is an evergreen shrub with gray-green, pine-scented needles and bright spring and summer blooms. It thrives in warm, humid areas (USDA zones 8–10) but can be overwintered indoors in cooler zones. Its drought resistance makes it ideal for terra-cotta pots, which promote faster drying.

Care Steps

Step 1: Choose the Right Location

Select a spot with well-draining, sandy soil and full sun (at least 6 hours daily).

Step 2: Plant in a Sinkable Pot

Use a terra-cotta pot that can be buried in the ground. This makes winter removal easy. Dig a hole for the pot, set it in, and backfill with soil.

Step 3: Water Sparingly

Water established plants only when rainfall is less than 1 inch per week in hot summers. Rosemary prefers soil dry several inches down.

Step 4: Fertilize Naturally

Apply fish emulsion fertilizer in spring. Avoid heavy or chemical fertilizers; rosemary doesn't respond well to them.

Step 5: Monitor for Powdery Mildew

Watch for white powdery fungus on foliage. Treat with a garden fungicide if needed.

Step 6: Propagate from Cuttings

Take cuttings of new green growth. Root in a glass with 2 inches of water, then plant once roots reach 1 inch.

Step 7: Overwinter Indoors

Before the first fall frost, remove the potted plant and grow it indoors through winter.