Holy

Basil

Zone 2b Save Garden

🌱 60d to harvest Upright

Holy Basil brings an aromatic rush of cool, bright green fragrance—sweetly herbal with a lightly peppered lift that blooms as the…

Crop Dates

Milestone	Date
Start Indoors	Apr 17th
Last Frost	May 15th
Transplant / Sow Outdoors	Jul 10th
Harvest Begins	Sep 8th
Harvest Ends	Aug 25th

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

Recommended Companions

Lemon Sweet Clove Basil

Frequently Asked Questions

What’s a common problem for Ocimum tenuiflorum (holy basil), and how do I treat it?

Holy basil commonly suffers from downy mildew and leaf spots when leaves stay wet and air is humid. Water at the soil line, remove heavily spotted leaves, and improve airflow by spacing plants well. If disease is active, use an approved copper-based fungicide and repeat as directed on the label.

How often should I water holy basil during its main growth (about the first 6–8 weeks)?

Keep the soil lightly moist but never waterlogged—holy basil performs best when the top 1 inch (2–3 cm) dries slightly between waterings. In warm, sunny weather this is often every 2–3 days, but adjust to container size and rainfall. Avoid wetting foliage because it increases mildew risk.

How do I know when holy basil is ready to harvest?

Harvest once plants reach about 8–12 inches (20–30 cm) tall and have several healthy sets of leaves, typically around 60 days from sowing. Snip leaf tips and small stem sections above a pair of leaves to encourage branching, and avoid removing more than one-third of the plant at a time. Plants are also ideal for continued harvest before flowers fully open; once flowering starts, leaf quality declines.

Holy Basil brings an aromatic rush of cool, bright green fragrance—sweetly herbal with a lightly peppered lift that blooms as the leaves warm in the sun. The foliage forms dense, upright clumps with tender, velvety leaves that are richly fragrant and pleasantly crisp in texture, ideal for everyday garden harvests. Grow Holy for bold, fragrant flavor in fresh garnishes and vibrant sauces, where its lifted aroma shines most clearly.

Sowing Tips

Transplant Conditions

Wait until soil reaches 60°F and nights stay above 50°F before moving outdoors. Harden off for 10 days first.

Expert Note

Keep plants warm and pinch the growing tips early to encourage bushy Tulsi-type basil rather than tall, leggy growth.