🌿 Basil

Ocimum basilicum
The drama queen of the herb garden — wilts theatrically, forgives instantly.
Sun
Full sun, 6-8 hrs
Days to harvest
68-75 from seed, 20-30 from transplant
Spacing
10-12 inches apart
Soil pH
6.0-7.5

How to grow

Start seeds indoors 6 weeks before your last frost — they need warmth (70-75°F) to germinate and will simply refuse in cold soil. Transplant only after nights are reliably above 50°F; basil holds grudges about cold and one chilly night can stunt it for weeks. In Florida, plant March through May and again in late summer — basil actually thrives in the heat that murders everything else, though it appreciates afternoon shade in August. Sow seeds a quarter inch deep, or just press them onto the surface since they like a little light. Pinch the growing tip as soon as the plant has three sets of leaves. This is non-negotiable: unpinched basil grows one sad lanky stalk, pinched basil becomes a bush. Keep pinching every time it tries to flower.

Water & feeding

About an inch a week, more in containers or Florida summer. Basil forgives a missed watering with a dramatic wilt followed by instant recovery — but repeated drought makes the leaves bitter. Mix 5-10% worm castings into the planting hole; basil is a moderate feeder and castings give it steady nutrition without the harsh salt spike of synthetic fertilizer. A light castings top-dress monthly keeps container plants lush. Mulch with straw to keep soil splash off the leaves.

Common problems

  • Downy mildew (fuzzy gray undersides, yellow tops) — water at the base, space for airflow, and try resistant 'Prospera' or 'Rutgers Devotion DMR' varieties.
  • Slugs and snails love tender basil — copper tape on containers, or go out at night with a flashlight and pick them off like a tiny bouncer.
  • Bolting/ flowering — pinch flower buds constantly; once it sets seed, leaf flavor declines.

Harvest

Pinch or snip stems just above a leaf node, taking no more than a third of the plant at once. Morning harvest after the dew dries gives the most concentrated oils. Never refrigerate fresh basil — cold turns the leaves black. It wants room temperature, like a tiny green houseguest.

Nerdy fact: Basil's clove-like scent comes from eugenol — the same compound dentists use to numb your gums. Every pesto is technically a mild dental anesthetic. Your Italian grandmother knew what she was doing.

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