Sacred Basil

Herbaceous

Sacred Basil

Ocimum tenuiflorum

Also known as: Tulsi, Holy basil (also used for other Ocimum taxa — verify cultivar)

Herbaceous Lamiaceae MedicinalPollinatorEdiblePest Management
Hardiness Zone
10-12
Ideal Temp
65–95°F
Survives Down To
40°F
Life Cycle
Perennial

Sacred basil — tulsi — is the aromatic shrubby basil that thinks sweet Genovese basil is soft. Peppery-clove scent, small leaves, and a cultural resume longer than this file. In true tropical frost-free pockets it is a short-lived woody perennial; in subtropical and tropical Americas grow as a heat-season annual unless you overwinter cuttings indoors. Full sun, excellent drainage, and airflow reduce downy mildew’s invitation to the party. 🌞💧 Sun and Water Requirements: - Full sun for dense, aromatic growth. - Moderate water; let soil breathe between drinks. - Well-drained loam; pots work well in humid rainy spells. ✂️🫘 Methods to Propagate: - Seeds: surface sow warm. - Cuttings root readily in water or humid media for winter insurance. 🧑‍🌾👩‍🌾 When to Harvest: - Pinch flowering tops for leaf production or allow bloom for pollinators — pick your theology.

Good Neighbors
  • Lemongrass
  • Ginger
  • Tomato
Cautions
  • Shady wet corners where mildew throws parties
Known Threats — Organic Solutions Only
Aphids
Aphidoidea
Downy Mildew
Peronosporaceae (oomycetes; host-specific species)
Whiteflies
Aleyrodidae