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An image of the plant grown with seed for Petunia Double Blue Seeds - Vibrant Blue Blooms, Perfect for Hanging Baskets and Floral Borders, Hardy and Floriferous
  • An image of the plant grown with seed for Petunia Double Blue Seeds - Vibrant Blue Blooms, Perfect for Hanging Baskets and Floral Borders, Hardy and Floriferous
Petunia Double Blue Seeds - Vibrant Blue Blooms, Perfect for Hanging Baskets and Floral Borders, Hardy and Floriferous
$4.99 CAD
Maturity

75 Days
Sunlight

Full Sun
Watering

Regular

Difficulty

Easy to grow
Life cycle

Annual
Grow Zones

9 - 11

Quick Reference

Zones

Plant Hardiness Zones describe the average minimum winter temperature for a region. They tell you where a plant can reliably survive outdoors. For example, Zone 5 can handle colder winters than Zone 9. Matching a plant to your zone increases the chance of long-term success.

Days

  • For food crops: Days to maturity is the expected number of days from planting to first harvest. This helps gardeners plan their growing season and time their harvests.
  • For non-food plants: Days to germination indicates how long it usually takes seeds to sprout under normal conditions. This is key for starting seeds successfully.

Types

  • F1 (Hybrid): A cross between two parent varieties. Hybrids are bred for vigor, uniformity, and specific traits such as disease resistance. Seeds saved from F1 plants don’t grow true to type. That means if you try to regrow them from seed, the plant won't necessarily be the same as last year's
  • OP (Open-Pollinated): Varieties that naturally pollinate and remain stable across generations. Seeds can be saved and replanted with consistent results.
  • HM (Heirloom): An open-pollinated variety that has been handed down for many generations. Heirlooms are valued for flavor, tradition, and genetic diversity.

Grows

  • Outdoors: Well-suited for garden beds, raised beds, or open soil, where natural conditions are stable.
  • Windowsill: Compact plants that thrive in containers indoors, often needing only modest light.
  • Anywhere: Highly adaptable plants that perform reliably in both indoor and outdoor settings.

Lifecycle

  • Annual: Grows, flowers, sets seed, and dies in one growing season. Many vegetables and flowers are annuals.
  • Perennial: Lives for multiple years, regrowing each season after going dormant. Often used in landscaping or long-term food crops.
  • Sp. Perennial (Self-Perennializing): A plant that reseeds itself or self-pollinates, giving the effect of perennial growth even if individual plants live shorter lives.

Size

Indicates the recommended container size or soil depth for best growth.

  • “X″ Pot”: The ideal pot diameter (e.g., 5″ Pot), ensuring enough root space.
  • DS (Deep Soil): Requires planting directly in the ground or in a deep raised bed, as shallow pots restrict growth.
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  • Vibrant Display: Features double-layered, deep blue petals that create a lush, full-bodied floral display, perfect for adding a pop of color to your garden.
  • Light and Temperature Requirements: Requires exposure to light for optimal germination, thriving best at 24°C (75°F). Maintain budding stage at cooler 12°C (55°F) for compact growth.
  • Extended Blooming: Enjoy long-lasting flowers by starting seeds 8-10 weeks before the last frost and pinching off old blooms to encourage new ones.
  • Culinary Uses: Although primarily ornamental, petunias can be used to add color to salads or as edible garnishes, adding a subtle flavor and stunning visual appeal.
  • Robust Growth: With regular fertilization every two weeks using a 10-52-17 formula combined with liquid seaweed, expect strong, healthy plants that withstand varied garden conditions.

Transform your garden into a serene blue paradise with Petunia Double Blue Seeds. These stunning flowers feature double-layered, deep blue petals that create a lush, full-bodied floral display. Ideal for hanging baskets and borders, they add a vibrant pop of color to any outdoor space.

Start seeds indoors 8-10 weeks before the last frost, pressing them lightly into the soil without covering. Maintain a warm environment for germination, then transplant outdoors in full sun. With regular fertilization and care, these easy-to-grow petunias will reward you with long-lasting blooms and even edible garnishes for your culinary creations. Don't miss the chance to enhance your garden with these exquisite flowers.
Size
How much seed do I need?

Seeds per gram: 9000
Average germination rate: 85%

Package sizes

  • 50 seeds — 42 plants — covers about 34–50 sq. ft.
  • 250 seeds — 212 plants — covers about 170–255 sq. ft.

Plant growth and coverage

  • Mounding to trailing, floriferous habit; ideal for hanging baskets and border edges
  • Height: 25–35 cm (10–14 in)
  • Spread: 30–45 cm (12–18 in)
  • Spacing: 25–30 cm (10–12 in) in beds; about 3 plants per 25–30 cm (10–12 in) hanging basket
  • Typical bed coverage: ~0.8–1.2 sq. ft. per plant

Choosing a packet size

  • The 50-seed packet is perfect for home gardeners, small borders, and a collection of hanging baskets or patio containers.
  • The 250-seed packet suits larger beds, landscapers, community spaces, or market growers planning mass plantings and succession sowings.
GROWING INSTRUCTIONS

Sow Petunia Double Blue seeds indoors 8-10 weeks before the last frost. Lightly press seeds into the soil without covering them, as they require light to germinate. Maintain a soil temperature of 24°C (75°F) for optimal results.

Germination typically occurs within 5-15 days. Once seedlings have several leaves, transplant them outdoors after hardening off, spacing them 8-12 inches apart. Ensure they receive full sun for best growth.

Water regularly but avoid overwatering. Fertilize every two weeks with a high-phosphate formula. Pinch off spent blooms to encourage continuous flowering, and enjoy the vibrant blue display throughout the growing season.
SHIPPING & RETURNS

In Canada, we use fast shipping from our Canadian warehouses. You can expect delivery in 1-3 days.

In the USA, We use our US warehouses, and you can expect your order in 1-3 days, too.

No postaged lettermail or slow shipping from across the world. No customs fees or orders withheld at the border. Tracking numbers for all orders.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible. Our return policy covers you for late, damaged or defective products.

 Read Our Shipping & Returns Policy

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