Surfinia Sky Blue

Petunia

Zone 2b Save Garden

Botanical illustration of Surfinia Sky Blue

🌱 70d to harvest Spreading

Imagine a cloud of sky—Surfinia Sky Blue spills in cascading ribbons of vivid, powdery blue blooms with a soft, velvety look and …

Crop Dates

Milestone	Date
Start Indoors	Mar 6th
Last Frost	May 15th
Transplant / Sow Outdoors	Jul 10th
Harvest Begins	Sep 18th
Harvest Ends	Aug 25th

Crop Details

Trait	Value
Days to Maturity	70
Sun Requirements	Full Sun
Growth Habit	Spreading
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	75
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	7

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Frequently Asked Questions

What pest or disease is most likely on Petunia × atkinsiana (Surfinia Sky Blue) and how do I control it?

Petunias commonly get botrytis/grey mold and leaf spot, especially in humid weather or when foliage stays wet. Water at the soil line, space plants for airflow, remove any spotted or greyed leaves, and avoid late-day watering. If new spots keep appearing, spray with a labeled fungicide for ornamental bedding plants and repeat according to the label interval.

How often should I water Petunia × atkinsiana during peak growth?

During active growth, keep the potting mix or soil evenly moist but never waterlogged—water when the top 1 inch feels dry. In full sun, Surfinia Sky Blue in containers often needs daily checks and may need watering once per day or even twice during heat waves. Make sure excess water drains freely so roots aren’t sitting in saturated media.

How can I tell when Surfinia Sky Blue is ready to harvest?

Petunia × atkinsiana is grown for flowers rather than for a typical edible harvest, so “ready” means the plants are in consistent bloom. Harvest/collect spent flowers when they finish blooming: pinch or snip off faded blooms with a short section of stem to trigger fresh flowering. You’ll know it’s ready to be actively deadheaded when new buds are continuously forming and the plant reaches steady, repeat blooms around its full 70-day establishment period.

Imagine a cloud of sky—Surfinia Sky Blue spills in cascading ribbons of vivid, powdery blue blooms with a soft, velvety look and a crisp, starry center. Each flower holds its color with a cool, refreshing intensity, creating a lush, trailing texture that reads like living lace from pot to ground. Ideal for hanging baskets, window boxes, and sprawling borders where its spreading habit can drape and fill with nonstop floral presence through the season.

Sowing Tips

Transplant Conditions

Wait until soil reaches 60°F and nights stay above 50°F before moving outdoors. Harden off for 7 days first.

Expert Note

For the most cascading growth and nonstop blooming, pinch once early and feed lightly but regularly with a balanced fertilizer after transplanting.