FlowerPetunia
Double Cascade Series Petunia
The Double Cascade Series Petunia delivers what its name promises: spectacular fully-double blooms reaching 4 inches across, nearly twice the size of standard petunias, on plants that reach just 10-15 inches tall. This hybrid annual thrives in zones 7-11 and matures in 100-109 days, bringing eye-catching color and texture to gardens, containers, and fresh arrangements from summer through frost. The pelleted seeds are bred to produce fuller, brighter flowers than typical petunia varieties, making them a standout choice for gardeners who want maximum visual impact from a compact plant.
Photo © True Leaf Market
Growing Conditions
USDA Zone
7-11
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained Loam, Fertile
Growth Stats
15 in
Height
TypeUpright
Spacing
14
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
7-11
Size
15in H x ?in W
Growth
—
Care
High
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Highlights
These fully-double petunias flaunt 4-inch blooms with intricate feathering that commands attention whether cascading from a hanging basket or anchoring a garden bed. The compact 10-15 inch height keeps plants tidy and dense, packed with flowers rather than sprawling vine. Bred specifically for superior size and color intensity, the Double Cascade Series outperforms standard petunias in visual drama while staying manageable in scale.
Common Uses
These petunias excel as cut flowers for fresh arrangements and bouquets, where their large double blooms and sturdy stems create dramatic focal points. They're equally at home in hanging baskets and container gardens, where their compact upright habit fills pots densely with blooms. Gardeners also grow them as standalone landscape plants for concentrated color impact and to attract butterflies throughout the growing season.
Growing Timeline
No timeline data available yet for this variety.
Care Instructions
Start Indoors
Start Double Cascade petunia seeds indoors 8-10 weeks before your last spring frost. Sow pelleted seeds directly on moist seed-starting mix without covering, as petunias need light to germinate. Keep soil consistently moist and maintain temperatures around 70-75 degrees Fahrenheit. Expect germination in 7-14 days under proper conditions.
Transplant Outdoors
Transplant seedlings outdoors after the last frost date when soil has warmed and nighttime temperatures stay above 50 degrees Fahrenheit. Harden off seedlings by gradually exposing them to outdoor conditions over 7-10 days. Space transplants 14 inches apart in the garden or container. Full sun locations with well-draining soil produce the most vigorous growth and abundant blooms.
Pruning
Pinch back seedlings when they develop their first true leaves to encourage bushier, more compact growth. Once established in the garden, deadhead spent flowers regularly to redirect energy into new bloom production rather than seed formation. No aggressive pruning is needed given the variety's naturally compact 10-15 inch upright habit.
Growing Calendar
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Companion Planting
Pests & Diseases
Ecology & Traits
Scientific Classification
Petunia x hybrida
Family
Solanaceae
Genus
Petunia
Growth Habit
Upright