Garden hybrid

Petunia x hybridaPetunia

32 other cultivars

annual

Supertunia

Petunia x hybrida 'Supertunia'

The Story

Plant Bio

Highly valued for their abundant blooms and vibrant colors, Supertunia varieties are known for their trailing growth habit.

Supertunia is bred for its exceptional ability to withstand heat and drought while maintaining a continuous bloom throughout the growing season.

Uses & Benefits:

Petunias provide vibrant colors and continuous blooms, enhancing garden aesthetics.

Their trailing habit makes them excellent for hanging baskets and window boxes.

Attract pollinators like bees and butterflies, supporting local ecosystems.

SpeciesPetunia x hybridaPetunia

Essentials

At a Glance

Plant Type

Annual

Height

12 inches

Width

24 inches

Light

Full Sun

Zones

Water

Moderate

Humidity

Prefers moderate humidity

Lifespan

Annual

Native To

South America

Toxicity

Non-toxic to humans and pets

Planting

How to Grow

Tuck seeds into moist soil in early spring for best germination.
Mist cuttings regularly to maintain humidity and root in 4-6 weeks.
Transplant seedlings outdoors after the last frost date, when soil warms.
Water deeply once a week, allowing soil to dry slightly between watering.
Fertilize monthly with a balanced liquid fertilizer for continuous blooms.
Pinch back stems to promote bushier growth and more flowers.

Pro Tip

Use well-draining soil and full sun for vibrant, prolific flowering.

Keep It Thriving

Care Guide

Do

Water consistently to keep soil evenly moist 💧
Pinch back stems to encourage bushiness ✂️
Fertilize monthly during the growing season 🌱

Don't

Avoid overwatering to prevent root rot ❌
Do not place in low light conditions 🌑
Refrain from letting soil dry out completely ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Colorful hanging basketsBright border edgingVivid container displays

Companion Plants

Marigolds Petunias Sweet Alyssum LobeliaGeraniums

Multiply

Propagation Methods

Good to Know

Common Questions

Supertunia questions

What zones can Supertunia grow in?

Supertunia is hardy in USDA Zone 10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Supertunia deer resistant?

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

When does Supertunia bloom?

Supertunia typically blooms in spring to frost through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Supertunia need full sun?

Supertunia does best in full sun (6+ hours).

Is Supertunia drought tolerant?

Yes — once established (usually after the first full season), Supertunia handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.