Species

Dahlia imperialisTree Dahlia

4 other cultivars

perennial

Honka White Dahlia

Dahlia imperialis 'Honka White'

Same species

Species

Dahlia imperialisTree Dahlia

4 other cultivars

Essentials

At a Glance

Plant Type

Perennial

Height

42 inches

Width

24 inches

Light

Full Sun

Zones

8, 9

Water

Moderate

Humidity

Moderate

Lifespan

Perennial

Native To

Mexico and Central America

Toxicity

Toxic to dogs and cats

The Story

Plant Bio

Dahlias are tuberous perennials prized for their incredibly varied and showy flowers that bloom from mid-summer until the first frost. 'Honka White' is an orchid-flowering dahlia, distinguished by its unique, star-shaped, pure white flowers with rolled petals. Its open form is particularly attractive to pollinators.

Uses & Benefits:

Dahlias offer stunning, tall, white blooms that add elegance and vertical interest to garden beds and borders.

They can be cut and used in floral arrangements, providing fresh, long-lasting bouquets.

Attract pollinators like bees and butterflies, supporting local biodiversity.

Planting

How to Grow

Tuck tubers into well-draining soil in early spring.
Water consistently to keep soil moist but not waterlogged.
Provide full sun to ensure vibrant blooms and healthy growth.
Fertilize monthly during the growing season with balanced fertilizer.
Stake tall plants to prevent wind damage.
Divide tubers every 2-3 years for optimal growth.

Pro Tip

Mulch around tubers to retain moisture and suppress weeds, especially in colder zones.

Keep It Thriving

Care Guide

Do

Water regularly during dry spells 💧
Apply balanced fertilizer monthly 🌱
Stake tall varieties to support stems
Remove spent flowers to encourage more blooms

Don't

Avoid overwatering to prevent rot ❌
Don’t disturb tubers in the growing season
Never neglect staking for tall cultivars
Avoid using heavy clay soil without amendments

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Fertilize
Lift Store
Pinch
Plant
Stake

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Tall, white-flowered accent in bordersStriking focal point in mixed bedsElegant backdrop for colorful plantings

Companion Plants

Salvia Zinnia Cosmos Lantana Marigold

Multiply

Propagation Methods

Good to Know

Common Questions

Honka White Dahlia questions

What zones can Honka White Dahlia grow in?

Honka White 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 Honka White Dahlia deer resistant?

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

When does Honka White Dahlia bloom?

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

Does Honka White Dahlia need full sun?

Honka White Dahlia does best in full sun (6+ hours).