Holy Basil

Family: Lamiaceae Herb

Fragrant and unmistakably aromatic, Holy Basil (Ocimum tenuiflorum) fills the garden with a cool, peppery-sweet perfume that lingers in the air as the leaves sway.

Expect tender, medium-green foliage with a softly textured, slightly fuzzy feel, and a bold flavor profile that shines in aromatic infusions and fragrant seasoning blends. Grow it for its lush, upright habit and its abundant leaf harvest potential—an elegant, high-scent addition to any home herb patch.

Light: Full SunMaturity: 60 DaysHabit: Upright

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Mar 14th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	Jun 24th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	60
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	10

Culinary Notes

Chef's Note

Holy basil isn’t your everyday supermarket basil—its flavor comes on with a cool, peppery edge wrapped in sweet, anise-like perfume. Chop it fine and add near the end, or you’ll mute that signature aroma and end up with more leaf taste than fragrance.

Best Uses

steeped infusion for a fragrant tea or aromatic syrup
tear-and-fold finishing over steaming rice or noodles for last-minute lift
quick-chopped seasoning in stir-fries where you want scent more than bulk
leaf-forward pesto-style paste blended with nuts and citrus

Flavor Profile

cool peppery bite sweet anise-citrus perfume tender leafy texture with a faintly fuzzy finish lingering aromatic heat on the back of the tongue

Kitchen Pairings

lime garlic ginger soy sauce coconut milk rice vinegar

Frequently Asked Questions

What pest or disease most commonly affects Ocimum tenuiflorum (holy basil), and how can I control it?

Look out for downy mildew and leaf spot, especially when leaves stay wet from overhead watering or humid air. Water at the soil line, space plants for airflow, and remove badly spotted leaves early. If new lesions keep appearing, spray a labeled copper-based fungicide according to the label and repeat at the interval specified.

How often should I water holy basil during its main growth phase?

During active growth, keep the top 1–2 inches of soil lightly moist but not soggy; holy basil performs best with consistent moisture and good drainage. Water deeply when the surface starts to dry, typically about every 3–5 days in warm weather, but reduce frequency after rainy periods or in cool conditions. Avoid wetting foliage because moisture on leaves promotes fungal issues.

How do I know when Ocimum tenuiflorum is ready to harvest?

Harvest starting around 50–60 days, once plants are well branched and have developed multiple healthy leaf pairs per stem. For the best flavor and to encourage new growth, pinch or snip just above a set of leaves rather than cutting into bare stems. Take the main harvest before flowering fully opens; once flowers start, leaf quality and aroma typically decline.