Petunia Shock Wave White F1 Seed
Best choice for gardeners creating vibrant, cascading hanging baskets and containers.
Discover the Petunia Shock Wave White F1 Seed, a premier choice for vibrant garden displays. This variety is renowned for its early flowering and spreading habit, producing an abundance of 1½-2" white blooms that create a stunning visual cascade. Perfect for crafting eye-catching hanging baskets and containers, these petunias are sure to draw admiration. Available in pelleted or untreated formats, with attractive quantity discounts for larger packs, they offer exceptional value and beauty for any garden setting.
$13.42
Owner Satisfaction
4.7
/ 5
Category Rank
78
/ 1801
#78 in Seeds
Price vs Category Average
-29%
Below average
Soil Temperature for Germination
7075
/ -°F
Who it's for
- Container gardeners seeking lush, overflowing hanging baskets
- Busy gardeners wanting low-maintenance, season-long color
- Professional landscapers requiring predictable, uniform plant growth
Who should skip it
- Budget-conscious gardeners preferring affordable, standard seed varieties
- Seed-saving enthusiasts who prefer self-sustaining garden cycles
- Gardeners in rainy climates wanting pristine, weather-resistant blooms
Performance breakdown
Bloom density
Produces a prolific, continuous cascade of flowers throughout the season.
Germination speed
Rapid sprout times ensure a quick start for your garden display.
Container versatility
Perfectly suited for hanging baskets and compact container arrangements.
Growth habit
Spreading nature creates a lush, mounded effect in any landscape.
Ease of handling
Pelleted seed options make sowing small seeds significantly more manageable.
Flowering earliness
Industry-leading bloom timing provides color well ahead of other varieties.
Key Specs
Soil Temperature for Germination
70-75°F
Germination Lighting Requirement
Don't Cover Seed
Germination Time
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
Features
- Small-flowered spreading seed petunia
- Earliest to flower in its class
- Abundant 1½-2" blooms
- Creates a mounded plant effect
- Ideal for baskets and containers
- Available pelleted or untreated
- Quantity discounts available
What customers say
Customers overwhelmingly praise the Harris Seeds Petunia Shock Wave White F1 Seed for its exceptional reliability and vigorous performance. The most celebrated feature is the remarkably high germination rate, which simplifies starting these plants. Gardeners value the F1 hybrid's uniformity, producing a consistent, cascading habit ideal for various containers and ground cover. This series delivers an early and prolific bloom cycle of crisp white flowers. Reviewers frequently note the plant's resilience against challenging summer heat and rain, maintaining bloom density where other varieties fail. Despite the premium cost, the superior quality, robust growth, and stunning visual impact provide excellent value. The core satisfaction lies in the product's dependable delivery of professional grade results.
Know before you buy
Pelleted seeds are coated in a clay-based material to make them larger and easier to handle during sowing, which is helpful for small petunia seeds. Untreated seeds are raw and uncoated, which some experienced gardeners prefer for organic growing practices.
Petunia seeds require light to germinate effectively. Covering them with soil can inhibit the process, so simply press them firmly into the surface of your seed-starting mix to ensure good contact without burying them.
Because these plants have a vigorous spreading habit of 30-36 inches, one or two plants are usually sufficient for a standard 12-inch hanging basket. Overcrowding can lead to poor airflow and reduced blooming, so give them enough space to cascade.
While the Shock Wave series is naturally mounded, you can encourage a denser, more uniform shape by pinching back the stems early in the season. Regular deadheading of spent blooms will also help the plant focus its energy on producing new flowers throughout the summer.
It is highly recommended to start these indoors under controlled conditions. Because they require specific soil temperatures between 70-75°F for germination and have a relatively long lead time, starting them indoors ensures they are well-established before being transplanted outside once the danger of frost has passed.
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