We have been purchasing our bulbs from A.D.R. for many years now. As a contractor, the process to order bulbs for many different clients is easy and seamless. The website is a wonderful tool that we refer to quite often for product information, photos, and combination ideas. Our bulbs always arrive on time and wonderfully organized to make our installation much more efficient . The product is top notch and leaves our customers with wanting more and more each season.

Ashley Marrin , Bret-Mar Landscape

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Dahlia Ball 'Mirella' (Ships in Spring)

Dahlia

Dahlia 'Mirella' is a ball-type dahlia featuring deep burgundy-black blooms that create a dramatic contrast in garden beds and floral arrangements. The flowers, about 3 inches in diameter, have tightly packed petals that form a perfectly rounded shape. This variety grows up to 36 inches tall and thrives in full sun with well-drained, fertile soil. Blooming from midsummer until frost, 'Mirella' is an excellent choice for borders, cutting gardens, and pollinator-friendly plantings. Hardy in zones 3-7.

Bulk Box of 25 Bulbs, #1 Size tubers

Dahlia Calculator

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Growing and Maintenance Tips for Dahlia Ball 'Mirella' (Ships in Spring)

Planting: In spring, plant tubers 3 to 4 inches deep with the eye facing up, once soil has warmed to at least 60°F. Space 18 to 24 inches apart to allow for airflow and mature spread.
Location: Full sun (6–8 hours daily) is essential for strong stems and abundant blooms.
Soil: Fertile, well-drained soil with a slightly acidic to neutral pH (6.0–7.0). Enrich with compost before planting.
Watering: Water deeply once or twice a week, keeping soil evenly moist but not soggy. Avoid watering until shoots emerge to prevent rot.
Temperature: Hardy in USDA zones 8–10. In colder zones, lift tubers after frost and store in a cool, dry place.
Fertilization: Apply a balanced fertilizer monthly or use a slow-release formula at planting and midsummer. Avoid high-nitrogen feeds.
Pruning: Pinch back when plants reach 12 inches tall to encourage bushier growth. Deadhead regularly to promote continuous bloom.
Pest & Disease: Watch for aphids, spider mites, and fungal issues. Ensure good air circulation and avoid overhead watering.
Propagation: Divide tubers in spring, ensuring each division has at least one viable eye.