Species

Dahlia pinnataPinnate Dahlia

34 other cultivars

perennial

High Contrast Duo Dahlia

Dahlia pinnata 'High Contrast Duo'

The Story

Plant Bio

Dahlia x pinnata 'High Contrast Duo' features striking bi-color flowers that provide vibrant interest in gardens.

This cultivar is noted for its unique combination of contrasting flower colors, which stands out beautifully in any garden setting.

Uses & Benefits:

Dahlias add vibrant color and dramatic form to gardens, creating eye-catching displays.

Excellent for cut flower arrangements, lasting well in bouquets.

Supports pollinators like bees and butterflies with abundant blooms.

SpeciesDahlia pinnataPinnate Dahlia

Essentials

At a Glance

Plant Type

Perennial

Height

30 inches

Width

24 inches

Light

Full Sun, Partial Sun

Zones

8, 9, 10

Water

Moderate

Humidity

Moderate

Lifespan

Tender perennial

Native To

Mexico

Toxicity

Toxic to pets

Planting

How to Grow

Plant tubers in well-draining soil in early spring after frost. 🌱
Tuck seeds or cuttings into soil, ensuring proper depth and spacing. Mist regularly.
Water consistently to keep soil moist but not waterlogged, especially during growth.
Pinch out the top to encourage bushier growth in mid-summer.
Apply balanced fertilizer monthly during the growing season for vibrant blooms.
Lift and store tubers in the fall after foliage dies back for overwintering.

Pro Tip

Ensure good airflow around plants to prevent fungal diseases and promote healthy growth.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist 🌱
Use organic mulch to retain moisture and suppress weeds
Deadhead spent blooms to encourage more flowers
Fertilize monthly with a balanced fertilizer
Provide full sun for optimal flowering

Don't

Avoid overwatering to prevent root rot ❌
Don't plant in heavy, waterlogged soil
Refrain from fertilizing late in the season to prevent weak growth
Don't ignore pest signs early
Avoid pruning in late fall

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

Brightly colored perennial borderVivid container displayCheerful cut flower arrangement

Companion Plants

Marigold Salvia Zinnia CosmosBachelor's button

Multiply

Propagation Methods

Good to Know

Common Questions

High Contrast Duo Dahlia questions

What zones can High Contrast Duo Dahlia grow in?

High Contrast Duo 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 High Contrast Duo Dahlia deer resistant?

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

When does High Contrast Duo Dahlia bloom?

High Contrast Duo 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 High Contrast Duo Dahlia need full sun?

High Contrast Duo Dahlia does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.