Species

Dahlia pinnataPinnate Dahlia

34 other cultivars

perennial

Mixed Border Dahlia

Dahlia pinnata 'Mixed Border'

The Story

Plant Bio

Dahlia x pinnata 'Mixed Border' is known for its vibrant mix of flower colors and forms, making it a popular choice for border planting.

This cultivar is particularly noted for its diverse flower shapes and sizes, providing a dynamic display in gardens.

Uses & Benefits:

Dahlias provide vibrant, showy flowers that brighten flower beds and containers throughout the summer.

Tubers store energy for overwintering, and their cut flowers make beautiful indoor arrangements.

Attract pollinators like bees and butterflies, supporting local ecosystems.

SpeciesDahlia pinnataPinnate 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

Mexico

Toxicity

Toxic to pets if ingested

Planting

How to Grow

Tuck tubers into well-draining soil after the last frost.
Water thoroughly after planting to settle the soil.
Mist cuttings regularly to maintain humidity during propagation.
Pinch back tips to encourage bushier growth in early summer.
Fertilize monthly with a balanced fertilizer during the growing season.
Deadhead spent flowers to promote continuous blooming.

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 🌱
Stake tall varieties to prevent them from falling over
Remove dead or faded flowers regularly

Don't

Avoid overwatering to prevent tuber rot ❌
Don’t plant in poorly drained soil
Refrain from fertilizing late in the season to avoid weak growth

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Bright perennial borderColorful container displayVivid garden bed accent

Companion Plants

Marigolds Salvia Zinnia Cosmos Lobelia

Multiply

Propagation Methods

Good to Know

Common Questions

Mixed Border Dahlia questions

What zones can Mixed Border Dahlia grow in?

Mixed Border 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 Mixed Border Dahlia deer resistant?

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

When does Mixed Border Dahlia bloom?

Mixed Border 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 Mixed Border Dahlia need full sun?

Mixed Border Dahlia does best in full sun (6+ hours).