Dinnerplate Dahlia Mix

How to Plant and Care for dahlias

When to Plant

• Wait until all danger of frost has passed and soil is at least 60°F.
• Store tubers in a cool, dark, dry place until ready. Do not refrigerate.

Planting Dahlia Tubers in the Ground

• Choose a full sun location with well-drained soil.
• Dig a hole at least 2" deep and wide enough for the tuber or clump.
• Place tuber with the eyes or cut stem facing up (or lay on its side if unsure).
• Cover with soil. Do not water immediately unless soil is dry.

Planting in Containers

• Use a large container (minimum 12" deep) with drainage holes.
• Fill with high-quality potting mix. Plant tuber as above.
• Place in full sun and water only when the soil dries out.

Ongoing Care

• Water deeply 2–3 times per week once growth appears; keep soil evenly moist.
• Mulch to retain moisture and reduce weeds.
• Support with stakes as plants grow to prevent flopping.
• Fertilize monthly with a low-nitrogen fertilizer (5-10-10 or similar).
• Deadhead spent blooms to encourage more flowers.

In Zones 7 and colder, dig up tubers after first frost and store indoors for next year.

Frequently Asked Questions: Dinnerplate Dahlia Mix

• 1. How big do Dinnerplate Dahlia blooms really get?
  True to their name, these dahlias produce flowers that can reach 8 to 10 inches wide—about the size of a real dinner plate. They create bold, showy displays that stand out in any garden or floral arrangement.
• 2. When do they bloom, and how long will the flowers last?
  Expect blooms to start appearing by midsummer, typically July, and continue through the first frost. With deadheading (removing spent flowers), you’ll get steady color for months.
• 3. Can I grow them in containers?
  Yes, these dahlias thrive in large containers. Just make sure the pot is at least 12–16 inches deep and wide, with good drainage. Container growing is great for patios, small spaces, or to control soil conditions.
• 4. Do these dahlias attract pollinators?
  They do! Bees and butterflies are naturally drawn to the bright, open blooms. While not the top pick for every pollinator (due to their complex petals), they still offer solid support for a buzzing, healthy garden.
• 5. How should I plant and care for the tubers?
  Plant each tuber in well-draining soil after the last frost, 2 inches deep with the "eye" facing up. Space them about 18–24 inches apart. Give them full sun (at least 6 hours daily), water regularly, and support tall stems with stakes if needed.