Species

1 other cultivar

‘Blue Fusion Everblooming’Blue Fusion Geranium

perennial

Geranium Riversleaianum Mavis Simpson

Geranium x riversleaianum 'Mavis Simpson'

The Story

Plant Bio

A trailing perennial geranium with gray-green foliage and a profusion of shell-pink flowers with darker veins.

This cultivar is particularly noted for its vigorous, long-lasting blooms and its attractive, finely divided foliage that provides ornamental interest even outside of flowering periods.

Uses & Benefits:

Adds vibrant pink color to borders and containers, with attractive foliage year-round.

Drought tolerant and low-maintenance, suitable for challenging sites.

Supports pollinators like bees and beneficial insects.

Essentials

At a Glance

Plant Type

Perennial

Height

12 inches

Width

36 inches

Light

Full Sun, Partial Sun

Zones

5, 6, 7, 8

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Garden origin

Toxicity

Non-toxic to humans and pets

Planting

How to Grow

Tuck seeds or cuttings into well-draining soil in spring.
Keep soil moist but not waterlogged during establishment.
Place in partial to full sun for best flowering.
Water regularly during dry spells for healthy growth.
Fertilize with a balanced fertilizer in early spring.
Pinch back stems to encourage bushier growth.

Pro Tip

Ensure excellent drainage to prevent root rot and promote healthy blooming.

Keep It Thriving

Care Guide

Do

Water regularly during dry periods 🌱
Deadhead spent flowers to encourage more blooms
Mulch to retain soil moisture

Don't

Avoid overwatering to prevent root rot ❌
Don’t fertilize excessively, as it may reduce flowering
Refrain from heavy pruning in late fall

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Fertilize
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Pink-flowered borderShaded rock garden accentWildflower meadow edge

Companion Plants

SalviaLavender Coreopsis Nepeta Echinacea

Multiply

Propagation Methods

Good to Know

Common Questions

Geranium Riversleaianum Mavis Simpson questions

What zones can Geranium Riversleaianum Mavis Simpson grow in?

Geranium Riversleaianum Mavis Simpson is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Geranium Riversleaianum Mavis Simpson deer resistant?

Yes — Geranium Riversleaianum Mavis Simpson is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Geranium Riversleaianum Mavis Simpson bloom?

Geranium Riversleaianum Mavis Simpson typically blooms in late 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 Geranium Riversleaianum Mavis Simpson need full sun?

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