19 named cultivars

annual

Zonal Geranium

Pelargonium x hortorum

The Story

Plant Bio

Popular ornamental plant with bright blooms; well-suited for container gardening.

Known for a long blooming period and ease of care.

Uses & Benefits:

Pelargonium x hortorum adds vibrant color and fragrance to gardens and containers, thriving in sunny spots.

Its aromatic foliage can deter pests and it’s easy to grow with minimal fuss.

Provides nectar for pollinators like bees and butterflies, supporting local ecosystems.

Essentials

At a Glance

Plant Type

Annual

Height

24 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

Water

Moderate

Humidity

Average

Lifespan

Tender Perennial

Native To

South Africa

Toxicity

Toxic to dogs, cats, and horses

Planting

How to Grow

Tuck seeds or cuttings into well-draining soil in spring.
Mist cuttings regularly to maintain humidity for 2-3 weeks.
Water when topsoil feels dry, avoiding overwatering.
Fertilize monthly with a balanced liquid feed during growing season.
Pinch back stems to encourage bushier growth in early summer.
Transplant outdoors after the danger of frost has passed.

Pro Tip

Use a lightweight, well-draining potting mix to prevent root rot.

Keep It Thriving

Care Guide

Do

Provide full sun for at least 6 hours daily 🌞
Water deeply but infrequently to avoid soggy soil
Pinch back to promote bushiness and flowering
Apply balanced fertilizer monthly during active growth
Ensure good air circulation around plants

Don't

Avoid overwatering, which can cause root rot ❌
Don't place in low light areas, as it needs full sun
Refrain from over-fertilizing, which can lead to leggy growth
Do not forget to prune dead or damaged stems
Avoid planting in heavy clay soil without amendments

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Fertilize
Plant
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Colorful window boxes with trailing habitSunny borders with vibrant bloomsContainer garden accents

Companion Plants

Marigold PetuniaSweet potato vine Salvia Lantana

Multiply

Propagation Methods

Good to Know

Common Questions

Zonal Geranium questions

What zones can Zonal Geranium grow in?

Zonal Geranium 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 Zonal Geranium deer resistant?

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

When does Zonal Geranium bloom?

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

Does Zonal Geranium need full sun?

Zonal Geranium does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Zonal Geranium drought tolerant?

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