Species

Dahlia pinnataPinnate Dahlia

34 other cultivars

perennial

Mystic Haze Dahlia

Dahlia pinnata 'Mystic Haze'

The Story

Plant Bio

Mystic Haze is known for its striking purple blooms and attractive foliage.

This cultivar features unique bi-colored petals that blend lavender and white, creating a soft haze appearance.

Uses & Benefits:

Dahlias add vibrant colors and lush texture to garden beds and containers, attracting pollinators like bees and butterflies.

They can be cut for fresh floral arrangements, bringing garden beauty indoors.

Providing nectar for beneficial insects and supporting local pollinator populations.

SpeciesDahlia pinnataPinnate Dahlia

Essentials

At a Glance

Plant Type

Perennial

Height

36 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

5, 6, 7, 8

Water

Moderate

Humidity

Moderate

Lifespan

Perennial in warm climates, annual elsewhere

Native To

Central America

Toxicity

Non-toxic

Bloom period

Late summer – Early fall

In flower about 2 months of the year

Planting

How to Grow

Tuck tubers into well-draining soil in early spring after the danger of frost has passed.
Water consistently to keep soil moist but not waterlogged during the growing season.
Stake tall varieties to support growth and prevent damage from wind.
Pinch back early growth to encourage bushier, fuller plants.
Fertilize monthly with a balanced fertilizer to promote vibrant blooms.
Deadhead spent flowers regularly to extend blooming period.

Pro Tip

Plant dahlias in a sunny spot with rich, well-draining soil for best blooms.

Keep It Thriving

Care Guide

Do

Water deeply once a week during dry spells 💧
Mulch around plants to retain moisture and suppress weeds
Stake tall varieties to support heavy blooms
Remove dead or diseased foliage promptly
Fertilize monthly with a high-potassium fertilizer

Don't

Avoid overwatering which can cause tuber rot ❌
Don’t disturb tubers in the fall after first frost
Do not fertilize with high nitrogen in late summer
Refrain from pruning during flowering to avoid stress
Never plant in poorly-drained soil

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Colorful border with vibrant, daisy-like flowersTall focal point in garden bedsContainer planting for patios and decks

Companion Plants

Marigolds Zinnias Salvia CosmosNasturtiums

Multiply

Propagation Methods

Good to Know

Common Questions

Mystic Haze Dahlia questions

What zones can Mystic Haze Dahlia grow in?

Mystic Haze Dahlia is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Mystic Haze Dahlia deer resistant?

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

When does Mystic Haze Dahlia bloom?

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

Does Mystic Haze Dahlia need full sun?

Mystic Haze Dahlia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.