perennial

Motto Dinnerplate Dahlia

Dahlia x hortensis 'Motto Dinnerplate'

The Story

Plant Bio

Large, showy flowers that are typically used for cutting and arrangements.

Dahlia 'Motto Dinnerplate' is noted for its massive blooms and striking color contrast.

Uses & Benefits:

Ornamental UsesDahlias provide bold, colorful blooms that enhance garden borders and floral arrangements, adding vibrant visual interest.
Practical UsesTheir cut flowers last long in bouquets, making them ideal for floral displays and events.
Ecological BenefitsAttract pollinators such as bees and butterflies, supporting local ecosystems.
SpeciesDahlia x hortensisGarden Dahlia

Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

24 inches

Light

Full Sun

Zones

8, 9, 10

Water

Moderate

Humidity

Moderate

Lifespan

Tender perennial

Native To

Central America

Toxicity

Mildly toxic to pets if ingested

Planting

How to Grow

  1. Tuck tubers 2 inches deep in well-draining soil in early spring.
  2. Water regularly to keep soil moist but not soggy during growing season.
  3. Pinch back young plants to encourage bushier growth after 4 weeks.
  4. Support tall varieties with stakes as flowers develop.
  5. Fertilize monthly with a balanced fertilizer during summer.
  6. Deadhead spent flowers to promote continuous blooming.

Pro Tip

Plant in full sun and ensure good air circulation to prevent disease.

Keep It Thriving

Care Guide

Do

  • Water consistently, especially during dry spells 🌱
  • Use mulch to retain soil moisture and suppress weeds
  • Support tall stems to prevent breakage
  • Fertilize monthly during active growth
  • Deadhead regularly for prolonged flowering

Don't

  • Overwater, which can cause tuber rot ❌
  • Plant in poorly drained soil
  • Neglect staking for tall varieties
  • Allow foliage to stay wet for long periods
  • Use high-nitrogen fertilizer late in the season

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Deadhead
Fertilize
Lift Store
Pinch
Plant
Stake

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Bright summer border with vibrant, large bloomsContainer display with striking foliageCut flower arrangements for bouquets

Companion Plants

Marigolds SalviaCosmosZinniaSweet Potato Vine

Multiply

Propagation Methods

Good to Know

Common Questions

Motto Dinnerplate Dahlia questions

What zones can Motto Dinnerplate Dahlia grow in?

Motto Dinnerplate Dahlia is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Motto Dinnerplate Dahlia deer resistant?

Not reliably. Deer may browse Motto Dinnerplate Dahlia, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Motto Dinnerplate Dahlia bloom?

Motto Dinnerplate Dahlia typically blooms in mid-summer to fall through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Motto Dinnerplate Dahlia need full sun?

Motto Dinnerplate Dahlia does best in full sun (6+ hours).

Keep exploring

Grow Motto Dinnerplate Dahlia with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.