SproutSmart
SproutSmart Intelligent Garden Sowing

African Blue

Basil
Botanical illustration of African Blue
🌱 70d to harvest Upright

Experience the aromatic embrace of African Blue Basil, a stunning herb that captivates with its vibrant purple-tinged leaves and …

Planting Schedule

Add African Blue to your garden to build a schedule and get reminders.

Crop Dates

MilestoneDate
Start IndoorsMay 4th
Last FrostJun 15th
Transplant / Sow OutdoorsAug 10th
Harvest BeginsOct 19th
Harvest EndsJul 15th

Crop Details

TraitValue
Days to Maturity70
Sun RequirementsFull SunFull sun
Growth HabitUpright
Support NeededUpright
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)10

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.
Botanical illustration of African Blue

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.

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

African Blue is typically treated as a perennial ornamental—start it in place after frost or buy started plants, then keep it evenly moist until established.