Easy Wave Purple

Petunia

Zone 10a Save Garden

Botanical illustration of Easy Wave Purple

🌱 70d to harvest Spreading

Velvety, easy-to-love blooms spill over the edge with a soft, violet-purple glow—each flower opening like a small evening lantern…

Crop Dates

Milestone	Date
Start Indoors	Nov 7th
Last Frost	Jan 16th
Transplant / Sow Outdoors	Jan 16th
Harvest Begins	Mar 27th
Harvest Ends	Dec 19th

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

Recommended Companions

Rutgers Devotion Basil

Genovese Red Freddy Basil

Frequently Asked Questions

What pest is most likely on Petunia × atkinsiana (Wave Purple), and how do I control it?

A common issue is aphids, which cluster on new growth and can cause curled leaves and sticky honeydew. Spray the plants with a strong jet of water, then treat with insecticidal soap (especially underside of leaves) every 5–7 days until you stop seeing new colonies. Check weekly because petunias can rebound quickly once aphids are controlled.

How often should I water Petunia × atkinsiana during active flowering, and what soil moisture target should I keep?

During the main flowering period, keep the root zone evenly moist but not soggy—aim for consistently moist soil 1–2 inches down. Water when the surface starts to dry, typically about 1–2 times per week depending on heat and container size; in midsummer containers often need more frequent watering. Avoid letting the soil dry out completely, which can trigger drooping and reduced flowering.

How can I tell when Petunia × atkinsiana (Wave Purple) is ready to harvest?

Petunia × atkinsiana isn’t usually “harvested” like a vegetable, but it is ready to cut for bouquets once it’s producing fully open, richly colored blooms. For best performance, deadhead by removing spent flowers and the seed heads immediately when they fade to keep flowering through the ~70-day growing period. If you want seeds, allow a few flowers to fully develop seed pods and turn brown before collecting.

Velvety, easy-to-love blooms spill over the edge with a soft, violet-purple glow—each flower opening like a small evening lantern. “Easy Wave Purple” forms a trailing, spreading mound that stays lush and floriferous through warm weather, with a gentle, satin-like petal texture that looks as good as it feels. Grow it for nonstop color in hanging baskets, window boxes, and garden drifts where its cascading habit turns any border into a living tapestry.

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 easiest blooms, keep plants in full sun and avoid letting the potting mix completely dry out—water deeply but infrequently, then feed with a balanced fertilizer every 1–2 weeks once flowering starts.