I have worked with A.D.R. Bulbs for almost 5 years now, and my company has sourced bulbs with them for longer than that. Communication is great - from ordering, to deliveries, to follow-ups on final product. I love the quality of the product as well as the service. We plant nearly 100,000 bulbs and A.D.R. keeps the whole process easy for us!

Louise Licata , Bland Landscaping Co.

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Dahlia Cactus 'Purple Gem' (Ships in Spring)

Dahlia

Dahlia 'Purple Gem' is a semi-cactus variety known for its deep violet-purple blooms with long, pointed petals that create a dynamic, spiky effect. The flowers, typically around five inches in diameter, shimmer in the light, adding a dramatic presence to garden beds and floral arrangements. This dahlia reaches a height of approximately 36 inches with a spread of 18 to 24 inches, forming a bushy, upright habit. Blooming from mid-summer until frost, it thrives in full sun and well-drained soil, making it a reliable choice for borders, containers, and cutting gardens. It attracts pollinators such as bees and butterflies while offering some resistance to deer and rabbits. Hardy in USDA zones 8 to 11.

Description	Price
10 Retail Packages of 1 Bulb, #1 Size tubers	$33.00
Get Notified When Back In Stock Complete this form and we'll notify you when SKU SRET8011240 is restocked. Email: Needed By: Qty Requested:
Bulk Box of 25 Bulbs, #1 Size tubers	$51.50
Get Notified When Back In Stock Complete this form and we'll notify you when SKU SBIN23330001 is restocked. Email: Needed By: Qty Requested:

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Growing and Maintenance Tips for Dahlia Cactus 'Purple Gem' (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 accommodate their vigorous growth and airflow needs.
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.