O. Gratissimum 'East Indian Holy Basil

Family: Lamiaceae Herb

Aromatic and unmistakably fragrant, O.

gratissimum ‘East Indian Holy Basil’ fills the garden with a bold, warm-citrus herbal perfume—deeply green at first breath, then gently peppery and resinous. The leaves are lush and textured, with a slightly crinkled, velvety surface that holds its character through the season, making this cultivar a standout for fresh aromatic use and drying. Grow it for its commanding presence in the bed and for its traditional medicinal reputation—an herb that feels as potent as it is beautiful.

Light: Full SunMaturity: 60 DaysHabit: Upright

Botanical illustration of O. Gratissimum 'East Indian Holy Basil

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	Jun 20th
Harvest Begins	Aug 19th
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

This Holy Basil cultivar has a commanding, warm-citrus perfume that shows up even when handled lightly—use it as a finishing herb so the resinous-pepper notes don’t flatten. The velvety, crinkled leaves dry beautifully, turning into a pepper-resin sprinkle that still reads fresh long after the harvest.

Best Uses

torn-leaf finishing on hot rice or noodles for a late, fragrant hit
quick infusions in syrup or vinegar for a punchy aromatic tang
drying for a long-carrying pepper-resin herb crumble
leafy pesto that leans more aromatic than garlicky

Flavor Profile

warm-citrus herbal aroma gently peppery bite resinous, slightly clove-like finish crinkled, velvety leaves that stay fragrant

Kitchen Pairings

lime ginger garlic black tea coconut milk chicken

Frequently Asked Questions

Why are my Ocimum gratissimum (East Indian Holy Basil) leaves developing spots or turning black, and what should I do?

Look for leaf spot or early fungal issues, especially in humid weather or if leaves stay wet after watering. Remove and discard affected leaves, water at the soil line (not overhead), and thin plants so air moves through the canopy. If the problem keeps spreading, use an appropriate copper-based fungicide labeled for edible herbs and reapply according to the label interval.

How often should I water Ocimum gratissimum during the main growing phase, and what soil moisture level does it want?

During active growth, keep the soil consistently moist but not soggy—aim for the top 1 inch to dry slightly between waterings. In full sun, this is often about every 2–4 days, but adjust based on how quickly your soil dries. Use well-draining soil and avoid standing water, since waterlogged conditions can quickly lead to stem and root problems.

How can I tell when Ocimum gratissimum (East Indian Holy Basil) is ready to harvest?

Begin harvesting around 60 days after germination when plants are well branched and have multiple sets of mature leaves. Pick the top 4–6 inches of stems or snip leaf clusters when leaves are fully sized and fragrant, but leave enough foliage to keep regrowing. For best flavor, harvest in the morning after the plant’s oils are most concentrated, and stop heavy harvesting once flowering begins if you want maximum leaf quality.

Today's Conditions

Outdoor planting for O. Gratissimum 'East Indian Holy Basil in Zone 6b typically begins around 2026-06-20. Wait until soil reaches at least 60°F before transplanting O. Gratissimum 'East Indian Holy Basil.