Osmin Purple

Basil

60d to harvest

A velvet cascade of deep purple leaves with a faint, peppery sweetness—Osmin Purple basil perfumes the garden with an unmistakably aromatic lift. Leaves are tender and richly textured, holding their color beautifully as plants mature to a lush, upright form. Ideal for fresh garnishing, flavorful sauces, and striking purple accents that make every tomato pairing look as vibrant as it smells.

Crop Dates

Milestone	Date
Start Indoors	Apr 20th
Last Frost	Jun 1st
Transplant / Sow Outdoors	Jul 20th
Harvest Begins	Sep 18th
Harvest Ends	Aug 1st

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

Paul Robeson Tomato

Durango Red Marigold

White Bhut Jolokia Pepper

Chocolate Sprinkles Tomato

Mayan Love Pepper Pepper

Marigold Marigold

Frequently Asked Questions

What pest or disease commonly affects Ocimum basilicum (basil) like Osmin Purple, and how do I control it?

Basil is prone to downy mildew (often showing yellowing patches on leaves with a gray-purple growth underside) and it spreads quickly in cool, humid weather. Remove and discard infected leaves early, improve airflow, and water at the soil line instead of overhead. If problems persist, switch to a fresh planting area and avoid re-watering the same bed until the surface dries between waterings.

How can I tell when Osmin Purple basil is ready to harvest?

Start harvesting around 50–60 days after sowing when plants are bushy with multiple leaf pairs and the foliage is fully colored. Pick by snipping just above a pair of leaves to encourage new branching, and harvest regularly so plants don’t rush into flowering. Once flower buds form, leaf quality drops—so harvest before they open and continue through the first flush of growth.