Dahlia Decorative ‘Kolossus Blend’ produces large, vibrant blooms on tall, sturdy stems, making it a bold statement in any garden or container. This Dutch summer favorite delivers continuous color from summer through fall, perfect for landscapes and cut flower arrangements.

Key Benefits

• Produces large, showy decorative blooms
• Excellent for cut flower arrangements
• Attracts butterflies and hummingbirds
• Ideal for garden beds and containers
• Long bloom season from summer into fall

Product Details

• Plant Height: 44–48 inches
• Bloom Time: Summer to fall
• Hardiness Zones: 8–10
• Light Requirements: Full sun
• Plant Type: Tuberous flowering plant

Planting & Growing Tips

• Plant in moist, fertile, well-drained soil
• Water regularly during the growing season, especially in containers
• Pinch excess buds and deadhead to encourage larger, longer-lasting blooms
• Provide support for taller plants to maintain upright growth

Important Use Notes

• Best suited for warm-season planting
• Protect from frost and cold conditions
• Lift and store tubers in colder climates for reuse next season