Tidal Wave Cherry

Family: Solanaceae Garden Petunia

Planting Schedule

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A tidal surge of color spills over the edge—Tidal Wave Cherry blooms in velvety, cherry-red rosettes with a soft, luminous sheen that catches the light like stained glass.

The trailing habit forms a dense, spreading cascade, creating a plush carpet of flowers that stays showy through the season. Ideal for hanging baskets and window boxes, it delivers nonstop ornamental impact with a rich, romantic presence all its own.

Light: Full SunMaturity: 70 DaysHabit: Spreading

Botanical illustration of Tidal Wave Cherry

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Tidal Wave Cherry Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone	Start Indoors	Sow / Transplant	Harvest
Zone 1a	Protected Environment Only
Zone 1b	Protected Environment Only
Zone 2a	Direct Sow	May 25th	Aug 3rd – Aug 29th
Zone 2b	Direct Sow	May 15th	Jul 24th – Aug 25th
Zone 3a	Direct Sow	May 15th	Jul 24th – Sep 1st
Zone 3b	Direct Sow	May 19th	Jul 28th – Sep 21st
Zone 4a	Direct Sow	May 15th	Jul 24th – Sep 24th
Zone 4b	Direct Sow	May 13th	Jul 22nd – Sep 27th
Zone 5a	Direct Sow	May 8th	Jul 17th – Sep 30th
Zone 5b	Direct Sow	May 4th	Jul 13th – Oct 5th
Zone 6a	Direct Sow	May 1st	Jul 10th – Oct 10th
Zone 6b	Direct Sow	Apr 25th	Jul 4th – Oct 16th
Zone 7a	Direct Sow	Apr 20th	Jun 29th – Oct 20th
Zone 7b	Direct Sow	Apr 10th	Jun 19th – Oct 28th
Zone 8a	Direct Sow	Apr 1st	Jun 10th – Nov 5th
Zone 8b	Direct Sow	Mar 23rd	Jun 1st – Nov 12th
Zone 9a	Direct Sow	Mar 6th	May 15th – Nov 26th
Zone 9b	Direct Sow	Feb 9th	Apr 20th – Dec 9th
Zone 10a	Continuous Production
Zone 10b	Continuous Production
Zone 11a	Continuous Production
Zone 11b	Continuous Production
Zone 12a	Continuous Production
Zone 12b	Continuous Production
Zone 13a	Continuous Production
Zone 13b	Continuous Production

Crop Details

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

Frequently Asked Questions

What pest or disease is most likely on Petunia × atkinsiana (Tidal Wave type), and how can I treat it?

On petunias, watch for gray mold (Botrytis) and leaf blight after humid, wet weather—symptoms include gray fuzzy growth and dark, spreading leaf spots. Remove affected foliage, improve airflow by spacing plants, and avoid wetting leaves when watering; if it keeps recurring, treat with a labeled fungicide for Botrytis/leaf blight and repeat as directed on the label. Also check for aphids and whiteflies on new growth, and knock them off with a strong spray or treat with insecticidal soap if numbers build up.

How often should I water during the main growing phase for Petunia × atkinsiana?

During active growth (roughly after transplanting until about mid-season), keep the root zone evenly moist but not waterlogged—water when the top 1 inch of soil feels dry. In full sun, this often means watering about 1–2 times per week, but hot, windy conditions may require more frequent watering; the goal is consistent moisture to prevent bud drop and wilting. Ensure drainage is excellent so excess water can’t sit around the crown.

How do I know when Tidal Wave petunia is ready to “harvest” or cut back?

Petunia × atkinsiana is grown for continuous blooms rather than a one-time harvest, so “ready” means flowers are fully open and richly colored. Start deadheading as soon as blooms fade to trigger fresh flowering; you’ll notice new buds forming within a week or two after deadheading. If growth becomes leggy or flowering slows, cut plants back by about one-third to jump-start a new flush of blooms.