Supertunia Vista Silverberry

Family: Solanaceae Garden Petunia

Planting Schedule

Provide your location or planting zone to unlock dates and add Supertunia Vista Silverberry to a garden.

A cascade of silvery, velvety blooms that glow like moonlight against the garden’s darker corners—Supertunia Vista Silverberry delivers a luminous show from early summer through the season’s end.

The flowers open wide with a soft, satin texture and a cool-toned berry cast, creating a trailing, spreading blanket that looks as rich in color as it feels in the eye. Ideal for hanging baskets, window boxes, and tumbling over edges, this petunia is made to be the living centerpiece of your display—bold, abundant, and effortlessly graceful.

Light: Full SunMaturity: 75 DaysHabit: Spreading

Botanical illustration of Supertunia Vista Silverberry

Location not set yet

Enter your ZIP for local crop dates

Supertunia Vista Silverberry 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	Mar 16th	May 25th	Aug 8th – Aug 29th
Zone 2b	Mar 6th	May 15th	Jul 29th – Aug 25th
Zone 3a	Mar 6th	May 15th	Jul 29th – Sep 1st
Zone 3b	Mar 10th	May 19th	Aug 2nd – Sep 21st
Zone 4a	Mar 6th	May 15th	Jul 29th – Sep 24th
Zone 4b	Mar 4th	May 13th	Jul 27th – Sep 27th
Zone 5a	Feb 27th	May 8th	Jul 22nd – Sep 30th
Zone 5b	Feb 23rd	May 4th	Jul 18th – Oct 5th
Zone 6a	Feb 20th	May 1st	Jul 15th – Oct 10th
Zone 6b	Feb 14th	Apr 25th	Jul 9th – Oct 16th
Zone 7a	Feb 9th	Apr 20th	Jul 4th – Oct 20th
Zone 7b	Jan 30th	Apr 10th	Jun 24th – Oct 28th
Zone 8a	Jan 21st	Apr 1st	Jun 15th – Nov 5th
Zone 8b	Jan 12th	Mar 23rd	Jun 6th – Nov 12th
Zone 9a	Dec 26th	Mar 6th	May 20th – Nov 26th
Zone 9b	Dec 1st	Feb 9th	Apr 25th – 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	75
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

Frequently Asked Questions

What pest or disease commonly affects Petunia × atkinsiana (Supertunia Vista Silverberry), and how do I treat it?

Petunias commonly get powdery mildew (white, dusty growth on leaves) and can also suffer from gray mold when foliage stays wet. Improve airflow, water at the soil line in the morning, and remove heavily infected leaves; for active mildew, spray with a labeled fungicide for powdery mildew and repeat as directed. If you see gray, fuzzy mold on stems or flowers, cut off affected parts immediately and avoid overhead watering.

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

During active growth (roughly from transplanting until it’s filling out), keep the soil consistently moist but not waterlogged—aim for the top 1 inch to dry slightly between waterings. In full sun, this is often about 1–2 deep waterings per week in-ground, or more frequently in containers (check daily in hot weather). Water thoroughly until excess drains, and don’t let pots sit in saucers of standing water.

How can I tell when Petunia × atkinsiana is ready to harvest for best performance?

Petunia × atkinsiana isn’t harvested like a vegetable; instead, “harvest” means removing spent blooms to keep it flowering. Start deadheading as soon as the first flowers fade, cutting back to just above the nearest set of healthy leaves to encourage new buds. If you’re growing from seed, the plant typically reaches strong flowering around ~75 days, when it has abundant side growth and continuous bud formation in full sun.