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Wave Yellow

Family: Solanaceae Garden Petunia
Zone 6b Save Garden

Planting Schedule

Add Wave Yellow to your garden to build a schedule and get reminders.

A living ribbon of color, Wave Yellow pours from the pot in a soft, trailing cascade of warm golden blooms that glow like late-summer sunlight.

Each flower is velvety in appearance with a gently ruffled edge, offering a delicate, luminous presence that looks especially striking against the plant’s deep green foliage. Ideal for trailing over containers and spilling from hanging baskets, Wave Yellow brings a long season of showy color to patios, walkways, and sunny window boxes.

Light: Full SunMaturity: 70 DaysHabit: Spreading

Botanical illustration of Wave Yellow

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

MilestoneDate
Start IndoorsFeb 14th
Last FrostApr 25th
Transplant / Sow OutdoorsMay 9th
Harvest BeginsJul 18th
Harvest EndsOct 16th

Crop Details

TraitValue
Days to Maturity70
Sun RequirementsFull SunFull sun
Growth HabitSpreading
Support NeededNone
Planting DepthSurface
Germination Temp (°F)75
Min Soil Temp (°F)50
Min Night Temp (°F)50
Harden Off (days)7

Frequently Asked Questions

What pest or disease most often affects Petunia × atkinsiana (Shock Wave Yellow/Wave Yellow), and what should I do?
Petunias commonly suffer from aphids and occasionally botrytis/gray mold when foliage stays wet. Check undersides of leaves weekly; hose off aphids or spot-treat with insecticidal soap, and remove any gray-moldy blossoms or leaves immediately. Keep plants in full sun with good airflow and avoid overhead watering to prevent recurrence.
How often should I water Petunia × atkinsiana during peak growth?
During the main growth phase, water thoroughly only when the top 1 inch of soil feels dry—usually every 2–3 days in hot weather, but less in cooler conditions. Petunias in containers often need more frequent checks because the pot dries faster; maintain evenly moist (not soggy) soil to prevent wilting and root stress.
How can I tell when Wave Yellow (Petunia × atkinsiana) is ready to harvest?
Petunia × atkinsiana is typically grown for nonstop blooms rather than a traditional harvest, and it’s ready to “harvest” flowers as soon as the first buds open. For best continued flowering, deadhead spent blooms daily or every 2–3 days; stop when plants are clearly slowing after the season’s peak.

Today's Conditions

Outdoor planting for Wave Yellow in Zone 6b typically begins around 2026-05-09. Wait until soil reaches at least 50°F before transplanting Wave Yellow.

Garden Alerts

In Zone 6b, the average last spring frost is around April 25. Watch soil temperature before transplanting Wave Yellow.

Today's Conditions

Outdoor planting for Wave Yellow in Zone 6b typically begins around 2026-05-09. Wait until soil reaches at least 50°F before transplanting Wave Yellow.

Garden Alerts

In Zone 6b, the average last spring frost is around April 25. Watch soil temperature before transplanting Wave Yellow.

Sowing Tips

Transplant Conditions

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

Expert Note

Start early because petunias are slow to establish; transplant after nights are reliably warm for best branching and faster bloom.