Harris Seeds Petunia Shock Wave Seed
Best choice for gardeners wanting vibrant, low-maintenance container displays.
These seeds turn a simple container into a dense, vibrant carpet of deep purple with minimal effort. While you sacrifice the architectural height of traditional petunias, you gain a reliable, early-blooming spreader that fills hanging baskets faster than almost anything else in the garden.
$10.74
at
Harris Seeds
Who it's for
- Gardeners designing lush hanging baskets and cascading ground cover
- Landscapers needing uniform growth and predictable bloom timing
- Homeowners seeking low-maintenance, weather-resistant floral displays
Who should skip it
- Budget-conscious gardeners preferring affordable open-pollinated seed varieties
- Beginners lacking specialized equipment for delicate seed starting
- Casual growers wanting plants that thrive without frequent fertilization
Performance breakdown
Bloom Density
Produces a prolific, carpet-like display of deep purple flowers.
Container Versatility
Perfectly suited for hanging baskets and compact container arrangements.
Germination Reliability
Pelleted seeds ensure predictable, uniform growth for home gardeners.
Growth Habit
Spreading nature creates a lush, manageable blanket of color.
Flowering Speed
Early and consistent blooms provide a long-lasting seasonal impact.
Maintenance Ease
Requires minimal effort to maintain a vibrant, healthy appearance.
Key Specs
Soil Temperature
70-75°F
Germination Lighting
Don't Cover Seed
Germination Days
7-12 Days
Grow on Temperature Day
65-70°F
Grow on Temperature Night
60-65°F
Plant Spread
30-36 inches
Plant Height
7-10 inches
Plant Type
Annual Flower
Planting Method
Transplant
Seed Form
Pelleted Seeds
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