Dahlia Seeds – Bumble Rumble Collarette

Bring vibrant color and striking charm to your garden with Dahlia ‘Bumble Rumble’ Collarette Seeds. Known for their eye-catching two-tone blooms and reliable growth, these heirloom, non-GMO seeds are perfect for home gardeners who enjoy adding bold, long-lasting flowers to beds, borders, and cut-flower arrangements.

‘Bumble Rumble’ produces attractive collarette-style blooms with a sunny yellow center surrounded by raspberry-red petals, creating a lively contrast that stands out through the growing season. These dahlias perform well in full sun, offering steady growth and excellent germination for gardeners of all experience levels.

Ideal for cut-flower gardens, pollinator-friendly landscapes, and decorative plantings, these seeds help you create a cheerful and inviting outdoor space.

Features

• Heirloom, non-GMO seeds with high germination

• Produces collarette-style blooms in vivid yellow and red

• Suitable for garden beds, borders, and cut-flower arrangements

• Attracts beneficial pollinators

• Performs best in warm, sunny locations

Specifications

• Common Name: Dahlia

• Variety: Bumble Rumble Collarette

• Growth Habit: Upright, bushy

• Bloom Type: Collarette

• Bloom Colors: Yellow and red

• Sun Requirements: Full sun

• Soil Type: Well-drained, fertile soil

• Planting Season:

  • Spring: Best sowing time once frost has passed (March–May depending on zone)

• USDA Hardiness Zones:

  • Zones 8–11: Can be grown as perennials

  • Zones 3–7: Grown as annuals; plant tubers after frost-free months (April–June)

• Germination Time: 7–14 days

• Maturity / Blooming Period: Summer to early fall (June–October)

• Plant Height: 24–36 inches

• Spacing: 12–18 inches

• Watering: Moderate; keep soil evenly moist

• Temperature: Prefers warm conditions above 65°F