Garden hybrid

17 other cultivars

perennial

Superbells Double Yellow

Calibrachoa x hybrida 'Superbells Double Yellow'

The Story

Plant Bio

Calibrachoa x hybrida, known as Superbells Double Yellow, is a low-growing, trailing perennial with abundant small, double yellow flowers and glossy, vibrant green foliage that creates a dense, colorful mat.

This cultivar is prized for its prolific flowering and double blooms, providing continuous color throughout the growing season and exceptional garden display.

Uses & Benefits:

Bright, cheerful blooms add vibrant color to containers and borders, enhancing garden aesthetics.

Drought-tolerant and low-maintenance, ideal for busy gardeners seeking easy-care plants.

Attracts beneficial insects, supporting local pollinator populations.

SpeciesCalibrachoa x hybridaMillion Bells

Essentials

At a Glance

Plant Type

Perennial

Height

6 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Moderate

Humidity

Prefers average humidity

Lifespan

Tender perennial, grown as an annual

Native To

Cultivated hybrid

Toxicity

May be toxic if ingested

Planting

How to Grow

Tuck seeds or cuttings into well-draining soil
Water regularly until established, then drought-tolerant
Place in full sun for best flowering
Fertilize monthly with balanced fertilizer
Pinch back to promote bushiness
Deadhead spent blooms for continuous flowering

Pro Tip

Ensure excellent drainage and full sun for vibrant blooms.

Keep It Thriving

Care Guide

Do

Water deeply during dry spells 🌱
Fertilize monthly for continuous color
Pinch back to promote bushiness

Don't

Overwater to prevent root rot ❌
Allow soil to dry out completely between watering
Neglect deadheading

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Bright hanging basketsColorful border edgesTrailing groundcover

Companion Plants

Petunias Trailing lobelia Sweet potato vine Calibrachoa

Multiply

Propagation Methods

Good to Know

Common Questions

Superbells Double Yellow questions

What zones can Superbells Double Yellow grow in?

Superbells Double Yellow is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Superbells Double Yellow deer resistant?

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

When does Superbells Double Yellow bloom?

Superbells Double Yellow typically blooms in spring 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 Superbells Double Yellow need full sun?

Superbells Double Yellow does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Superbells Double Yellow drought tolerant?

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