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Item Number: SB102

Dahlia Decorative Creme de Cassis (Pack of 2)

Unique Two-Toned Petals

Dahlia Decorative Creme de Cassis

The Dahlia Decorative Creme de Cassis is a garden gem with its dramatic two-toned blooms—lavish cassis pink petals with velvety, dark plum centers. These richly colored, 4"–6" decorative dahlias deliver visual sophistication and garden vibrance from summer through fall. Their striking appearance and long-lasting performance make them a favorite for both ornamental beds and fresh floral arrangements. The compact yet bold form brings charm and structure to cottage gardens, borders, and containers alike.

  • USDA Zones: 8–10 (other zones must lift for the winter)
  • Bloom Time: Summer–Fall
  • Height: 28"
  • Planting depth/Spacing: 2–4"/ 18"
  • Deer Resistant: No

To learn more about the dahlias’ upkeep and maintenance, please visit our blogs and videos below.

Admired for its moody elegance, it adds contrast and texture to your garden palette. Its sturdy stems and compact 28-inch height make it an excellent choice for mid-border planting or container gardening. These eye-catching blooms also shine in cutting gardens where their color depth and form elevate seasonal arrangements.

Key Characteristics and Benefits of Growing Dahlia Creme de Cassis

  • Bi-color Beauty: Cassis pink petals paired with deep purple centers offer a sophisticated color story.
  • Ideal for Cut Flowers: Strong stems and bold blooms enhance summer-to-fall floral designs.
  • Season-Spanning Blooms: Flowering from summer through the first frost, delivering consistent visual impact.
  • Compact but Bold: 28" mature height fits easily into a range of garden layouts and container styles.
  • Pollinator-Friendly: Attracts bees and butterflies while enriching late-season biodiversity.

Growing Dahlia Creme de Cassis Tubers

Plant these tubers in well-drained soil once the danger of frost has passed and soil temperatures have warmed. Dig a hole 2–4 inches deep and space each tuber 18 inches apart to allow for mature growth. Choose a sunny location for best flowering performance.

Climate and Soil Requirements

Suited for USDA zones 8–10, this dahlia thrives in full sun and enriched, well-drained soils. In zones outside of this range, lift and store the tubers in a cool, dry area before winter to replant in spring.

Sunlight and Watering

Provide full sun exposure (6–8 hours daily) and water regularly during the growing season to keep soil evenly moist but not soggy. Reduce watering after bloom to prepare for dormancy.

Care and Maintenance

Deadhead spent blooms to prolong flowering and encourage new growth. In regions with cold winters, dig up tubers after the first frost, dry thoroughly, and store indoors for the following season.

For more tips on caring for flower bulbs, explore our complete Flower Bulb Growing Guide .

Multiple Trusted Brands at Grow Organic

At Grow Organic, we offer Dahlia Decorative Creme de Cassis tubers from several trusted premium brands. This ensures high-quality performance, giving you the flexibility to select the brand that best matches your garden needs, growing conditions, and personal preferences.

Learn More About Growing Dahlias

For expert advice on planting, care, and seasonal dahlia maintenance, read our guide: Growing Summer-Blooming Flowers: Dahlias.

Additional Flower Favorites

Browse our full selection of dahlias and seasonal favorites in the Pollinator Flowers Collection.

$9.99

Check Your Zone Compatibility:

Shipping Information

Ships from Northern CA.

Cannot ship to the following states: HI, AK, PR, VI, GU

Shipping Weight: 1.0 lb

Dimensions: 8.0"L x 4.0"W x 4.0"H

Features

  • Bulb
  • Container Compatible
  • Good Cut Flower

Characteristics

USDA Growing Zone: 8 - 10
Bloom Season : Summer
Flower Color : Lavender
Growth Habit : Upright
Life Cycle : Perennial
Plant Usage : Ornamental
Planting Time : Spring
Sun Requirements : Full Sun

Planting & Care

Useful Information

Guarantee

We guarantee the perishable items we sell to be in good, viable condition when we sell them. Perishable items include, but are not limited to, garlic bulbs, flower bulbs, seed potatoes, onion sets & transplants, potted or bare root trees, vegetable crowns, etc. If your perishable item arrives in substandard condition, take photographs and please contact us within 3 days of the purchase date (or delivery date) and we will provide you with a refund of the purchase price (excluding shipping costs), or a replacement. Accordingly, we urge you to open any boxes marked as ""Perishable"" immediately upon receiving them and inspect the shipment thoroughly (do not crack open heads of garlic, we do not accept claims on cracked garlic). Because some perishable items can deteriorate very quickly, we cannot accept any claims beyond the 3-day time frame as it becomes too difficult to determine if these items were delivered in substandard condition, or if they turned into such substandard condition because of having been improperly cared for or stored once delivered.

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