SproutSmart
SproutSmart™ Intelligent Garden Sowing

African Sunset

Petunia
Zone 11a Save Garden

Planting Schedule

Add African Sunset to your garden to build a schedule and get reminders.
Botanical illustration of African Sunset
90d to harvest

A living cascade of color, African Sunset drapes the garden in velvety, sunset-bright blooms that seem to glow from within—warm apricot-orange to ember-red with darker, velvety throats. Each flower carries a soft, slightly ruffled texture and a generous, open trumpet silhouette that invites lingering admiration from spring through fall. Perfect for trailing over containers, window boxes, and hanging baskets, African Sunset brings nonstop showy color to borders and pathways as a spreading annual centerpiece.

Crop Dates

Growing note: Frost-free Zone 11a supports continuous outdoor production.
MilestoneDate
ClimateFrost-Free Climate
Growing ApproachContinuous Production

Crop Details

TraitValue
Days to Maturity90
Sun RequirementsFull SunFull sun
Growth HabitSpreading
Support NeededNone
Planting DepthSurface
Germination Temp (°F)70
Min Soil Temp (°F)60
Min Night Temp (°F)50
Harden Off (days)7

Today's Conditions

Outdoor planting for African Sunset in Zone 11a typically begins around throughout the growing season. Wait until soil reaches at least 60°F before transplanting African Sunset.

Garden Alerts

Frost-free Zone 11a supports continuous outdoor production.

Frequently Asked Questions

What pest or disease most commonly affects Petunia × atkinsiana (African Sunset), and how can I treat it?
Petunias are especially prone to aphids and botrytis (gray mold) during cool, humid stretches. For aphids, spray infested growth with insecticidal soap and repeat every 5–7 days until you stop seeing clusters. To prevent botrytis, keep leaves and flowers as dry as possible (water at the soil line) and remove any gray, mushy blooms immediately; if problems persist, use a labeled fungicide for botrytis on petunias.
How often should I water Petunia × atkinsiana during the main growing phase?
During active growth, keep the root zone evenly moist but never waterlogged—aim for top 1 inch of soil to dry slightly between waterings. In full sun and warm weather, this often means watering about 1–2 times per week, but container plants may need more frequent checks. If the soil feels wet or smells sour, slow down to avoid root stress that invites disease.
How do I know when African Sunset (Petunia × atkinsiana) is ready to harvest?
African Sunset is typically grown for continuous flowering rather than a single “harvest,” and flowers are considered ready as soon as buds swell and colors fully open. For best bloom performance, pinch or cut spent flowers when they fade—this is the practical harvest step that triggers new bud formation. If you’re collecting seeds from Solanaceae petunias, let seed pods dry on the plant and harvest only when pods turn papery and begin to split.
Botanical illustration of African Sunset

A living cascade of color, African Sunset drapes the garden in velvety, sunset-bright blooms that seem to glow from within—warm apricot-orange to ember-red with darker, velvety throats. Each flower carries a soft, slightly ruffled texture and a generous, open trumpet silhouette that invites lingering admiration from spring through fall. Perfect for trailing over containers, window boxes, and hanging baskets, African Sunset brings nonstop showy color to borders and pathways as a spreading annual centerpiece.

Today's Conditions

Outdoor planting for African Sunset in Zone 11a typically begins around throughout the growing season. Wait until soil reaches at least 60°F before transplanting African Sunset.

Garden Alerts

Frost-free Zone 11a supports continuous outdoor production.

Sowing Tips

Soil Temperature

Direct sow or transplant when soil at planting depth holds 60°F for reliable germination and early growth.

Expert Note

Start petunias early under lights if you want the earliest blooms, then transplant only after nights are reliably warm.

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