Dahlia Decorative Purple Blend (Pack of 3)

Dahlia Decorative Purple Blend

The Dahlia Decorative Purple Blend captivates with luxurious shades of lavender, plum, and royal violet, offering a regal aesthetic for summer and fall gardens. These decorative dahlias produce large, full blooms on tall, sturdy stems—perfect for both landscape accents and floral arrangements. Whether planted in ornamental beds, cutting gardens, or containers, this blend of purple dahlia varieties delivers vibrant color and refined texture all season long. Gardeners of all skill levels will appreciate their ease of growth and exceptional performance.

• USDA Zones: 8–10 grown as perennial; 3–7 grown as annual
• Bloom Time: Mid-summer to fall
• Height: 36–48"
• Planting depth/Spacing: 2"/ 18–24"
• Deer Resistant: No
• Sun Requirements: Full sun/part sun

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

This stunning blend transitions seamlessly from high summer into autumn, delivering layers of color when many other flowers begin to fade. With a mature dahlia height of up to 48 inches, these plants make dramatic vertical statements in the garden. Their vivid coloration and long bloom season add depth to mixed borders and elevate container designs with rich seasonal interest.

Key Characteristics and Benefits of Growing Dahlia Decorative Purple Blend

• Bold Purple Hues: A mix of deep and soft purples adds luxury and visual drama to flower beds and arrangements.
• Long Blooming Season: Enjoy vibrant color from midsummer through the first frost.
• Perfect for Cutting: Large double blooms with long stems are ideal for bouquets and floral centerpieces.
• Multi-Use Garden Appeal: Great for beds, borders, and containers when planted with correct dahlia spacing.
• Pollinator Friendly: Supports biodiversity by attracting bees and butterflies.

Growing Dahlia Decorative Purple Blend

Plant tubers after the danger of frost has passed, placing each 2 inches deep and spacing them 18–24 inches apart for optimal growth. Choose a site with fertile, well-drained soil and plenty of sunlight. In colder zones, grow dahlias as annuals or dig up tubers in fall for winter storage.

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

Climate and Soil Requirements

This variety grows as a perennial in USDA zones 8–10 and as an annual in zones 3–7. Loose, nutrient-rich soil ensures strong root development and healthy blooms. Incorporate compost at planting for best results.

Sunlight and Watering

Provide full sun to part sun exposure and water regularly, especially during dry spells. Avoid overhead watering to prevent disease and stake tall plants to protect against wind damage.

Care and Maintenance

Deadhead flowers to promote new blooms and extend the flowering season. In frost-prone areas, lift and store tubers in a cool, dry place to replant next spring. For a comprehensive guide on planting, watering, and post-season care, read our blog on Growing Summer-Blooming Flowers: Dahlias.

Multiple Trusted Brands at Grow Organic

At Grow Organic, we proudly offer the Dahlia Decorative Purple Blend from multiple trusted premium brands. This gives you greater flexibility to choose the perfect tubers for your garden needs, style preferences, and budget—ensuring you receive top-quality selection and performance with every purchase.

Are Dahlias Perennials?

Many gardeners ask, are dahlias perennials? In zones 8–10, they are perennial and return year after year. In cooler zones, dahlias can be enjoyed as annuals or stored over winter to extend their life. Their adaptability makes them a rewarding and sustainable choice for gardens across the U.S.

Explore even more spring favorites in our Annual Flower Seeds Collection.