African Blue

Family: Lamiaceae Herb

Experience the aromatic embrace of African Blue Basil, a stunning herb that captivates with its vibrant purple-tinged leaves and a robust, sweet flavor profile.

Perfect for fresh salads or as a fragrant garnish, this variety also boasts a unique floral aroma that enhances any dish. Its lush foliage adds not only culinary delight but also ornamental beauty to your garden.

Light: Full SunMaturity: 70 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	Jun 20th
Harvest Begins	Aug 29th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	70
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	Upright
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

African Blue brings an extra sweet-floral basil note that reads almost perfumed when the leaves are torn, not chopped to death. It’s built for finishing—hit it at the last second with acid and oil so the aroma stays bright and the leaves stay tender.

Best Uses

tear-and-toss salads where the leaves keep their shape under light dressing
quick chiffonade garnish for warm plates—add at the end so it doesn’t turn dull
blend into a deep-green purple-streak pesto or pistou for a fragrant, sweet-herb sauce
bruise lightly for infused oil or vinegar for a floral, herb-forward drizzle

Flavor Profile

sweet, aromatic basil perfume with a slightly floral top note purple-tinged leaves with a tender, juicy chew gentle herbal bitterness on the finish

Kitchen Pairings

garlic lemon olive oil parmesan mozzarella chicken

Frequently Asked Questions

How do I manage powdery mildew on African Blue plants?

Powdery mildew often shows as a white, dusty coating on African Blue leaves, especially when nights are cool and humidity stays high. Improve airflow by spacing plants as labeled and watering the soil (not the leaves); remove the most heavily affected leaves early. If it’s spreading, spray a labeled sulfur or potassium bicarbonate product, repeating as directed until the coating stops spreading (avoid sulfur on very hot days).

How often should I water African Blue during active growth (around weeks 3–8)?

During the main growth period, keep the soil evenly moist but not soggy—aim for the top 1 inch to dry slightly between waterings. In warm weather this usually means watering about 1–2 times per week, but increase frequency if the top inch dries in a day. Use deep watering so moisture reaches the root zone; African Blue in constantly wet soil is much more prone to stem and root problems.

When is African Blue ready to harvest?

Harvest at about 70 days from sowing when the pods/fruit reach their expected full size and color, and the surface feels firm rather than soft or underdeveloped. If you’re growing it for edible shoots/leafy parts, harvest once plants are producing plenty of leaves and continue picking early in the day for best texture. For quality, do a test harvest and check whether the pieces taste tender and are not woody—then harvest the remaining crop on the same readiness window.