SproutSmart
SproutSmart™ Intelligent Garden Sowing

Raspberry Blast

Petunia
Zone 13a Save Garden
Botanical illustration of Raspberry Blast
🌱 70d to harvest Spreading

Raspberry Blast spills into view with a velvety rush of raspberry-red blooms that glow against soft, leafy green—each flower a br…

Planting Schedule

Add Raspberry Blast to your garden to build a schedule and get reminders.

Crop Dates

MilestoneDate
Start IndoorsOct 23rd
Last FrostJan 1st
Transplant / Sow OutdoorsJan 15th
Harvest BeginsMar 26th
Harvest Ends—

Crop Details

TraitValue
Days to Maturity70
Sun RequirementsFull SunFull sun
Growth HabitSpreading
Support NeededNone
Planting DepthSurface
Germination Temp (°F)75
Min Soil Temp (°F)60
Min Night Temp (°F)55
Harden Off (days)7

Frequently Asked Questions

What pests or diseases commonly hit Petunia × atkinsiana (your “Raspberry Blast”) and how can I control them at home?
Watch for aphids and whiteflies, which can show up as sticky leaves and reduced vigor; spray plants with a strong jet of water, then use insecticidal soap or neem and repeat every 5–7 days until activity stops. Also monitor for botrytis/gray mold, especially in humid weather or if foliage stays wet—remove affected blossoms/leaves, improve airflow by spacing plants, and water only at the soil line in the morning.
How often should I water Petunia × atkinsiana during its main growing phase (around weeks 3–10)?
Water so the top 1 inch of soil dries slightly between waterings, then soak thoroughly until excess drains; in full sun, this often works out to about 1–2 times per week depending on heat and container size. Avoid keeping the root zone constantly wet, since petunias in the Solanaceae family are prone to fungal issues when foliage and soil stay wet too long.
How do I know when Petunia × atkinsiana is ready to harvest?
Petunia × atkinsiana is typically grown for flowers rather than a harvested edible crop—start “harvesting” by picking spent blooms as soon as they fade, which encourages new flowering. If you’re harvesting seeds, let pods dry on the plant after flowering, then collect when pods turn papery and start to split, usually around the 70-day season window from sowing.
Botanical illustration of Raspberry Blast

Raspberry Blast spills into view with a velvety rush of raspberry-red blooms that glow against soft, leafy green—each flower a bright, velour-like trumpet that seems to catch the light from every angle. The trailing, spreading habit makes it ideal for cascading over edges, where the continuous flush of color creates a living waterfall from early summer through fall. Grow it for show-stopping color in hanging baskets, window boxes, and patio planters, and enjoy the nonstop ornamental presence it brings to your garden display.

Sowing Tips

Transplant Conditions

Wait until soil reaches 60°F and nights stay above 55°F before moving outdoors. Harden off for 7 days first.

Expert Note

Start petunias early indoors and transplant only after nights are consistently warm, then keep plants in full sun and feed lightly but regularly for continuous blooms.