Geranium 'Mavis Simpson' (cranesbill 'Mavis Simpson') — Mound-forming or spreading

Overview

Geranium 'Mavis Simpson' is a mound-forming or spreading perennial in the genus Geranium, part of the Geraniaceae family, with deciduous or semi-evergreen; rounded, palmately lobed, often aromatic foliage. Geranium 'Mavis Simpson' grows best in full sun to partial shade, and tolerates most soils and acid and neutral or alkaline pH. Its UK hardiness is rated H5–H7. Suggested uses include borders, rock gardens, ground cover, cottage gardens and containers..

About

Geranium 'Mavis Simpson' is a perennial cranesbill that forms a low mound or spreads to fill gaps in planting. Leaves are rounded and palmately lobed, often aromatic, and may be deciduous or semi‑evergreen. It flowers from June to September and suits full sun to partial shade on a wide range of soils, provided they are well drained but not parched.

About the genus

Geranium is a genus of 422 species of annual, biennial, and perennial plants that are commonly known as geraniums, hardy geraniums, or cranesbills. They are found throughout the temperate regions of the world and the mountains of the tropics, with the greatest diversity in the eastern part of the Mediterranean region.

Wikipedia contributors, "Geranium", CC BY-SA 4.0 — Geranium

In the garden

Geranium 'Mavis Simpson' is a perennial cranesbill cultivar that forms a low mound or spreads to weave through mixed plantings. The foliage is rounded and palmately lobed, often aromatic, and may remain semi‑evergreen in milder seasons. Flowering runs from June to September, offering a season-long presence at close to ground level. Plant in full sun to partial shade on any aspect; the cultivar tolerates both exposed and sheltered sites. It adapts to almost any reasonable soil—loam, chalk, sand or clay—and accepts acid, neutral or alkaline pH, but requires sensible drainage: well drained but not parched. Hardiness is H5–H7 (from hardy to fully hardy), so it will overwinter outdoors in most UK gardens and corresponds roughly to USDA zones 4–9. Avoid waterlogged ground rather than seeking particularly rich soils. Use Geranium 'Mavis Simpson' at the front of mixed borders, as a matting ground cover between shrubs, in rock gardens, cottage-garden groups or in containers. For pots choose a free‑draining compost to reflect its drainage preference. With flowers from June to September held just above the palmately lobed leaves, the cultivar gives extended floral display without rising above low-level plantings.

Growing conditions

Best soil and position for Geranium

Sunlight: Full sun to partial shade
Soil type: Almost any reasonable soil — loam, chalk, sand or clay
Soil pH: Acid, neutral or alkaline
Soil moisture: Well drained but not parched
Aspect: Any
Exposure: Exposed or sheltered
UK hardiness: H5–H7

Plant details

Geranium 'Mavis Simpson' size, habit and characteristics

Plant type: Perennial
Habit: Mound-forming or spreading
Foliage: Deciduous or semi-evergreen; rounded, palmately lobed, often aromatic
Suggested uses: Borders, rock gardens, ground cover, cottage gardens, containers.

Care notes

Pruning and caring for Geranium 'Mavis Simpson'

Cultivation: Among the least demanding of perennials, asking only for reasonable drainage and an open position. Shear the whole plant back hard after the first flush and water it in; most kinds then produce fresh foliage and a second showing by late summer.
Pruning: Cut back to a low framework after the first flowering to renew the foliage and prompt repeat bloom. Tidy any remaining growth in late autumn or early spring.
Propagation: Divide in spring or autumn. Many species self-seed freely, and basal cuttings suit cultivars that resent disturbance.
Pest resistance: Largely untroubled, though vine weevil grubs attack the roots of container plants and sawfly larvae occasionally strip leaves.
Disease resistance: Powdery mildew and rust may appear on congested plants in a dry summer; shearing back usually resolves both.

Frequently asked questions

How do I grow Geranium 'Mavis Simpson'?

Among the least demanding of perennials, asking only for reasonable drainage and an open position. Shear the whole plant back hard after the first flush and water it in; most kinds then produce fresh foliage and a second showing by late summer.

Where is the best place to plant Geranium 'Mavis Simpson'?

Geranium 'Mavis Simpson' prefers full sun to partial shade. It suits exposed or sheltered positions.

What soil does Geranium 'Mavis Simpson' need?

Geranium 'Mavis Simpson' is adaptable and grows happily in most soil types, including almost any reasonable soil — loam, chalk and sand or clay. It prefers acid and neutral or alkaline soil. Aim for soil that stays well drained but not parched.

How do I prune Geranium 'Mavis Simpson'?

Cut back to a low framework after the first flowering to renew the foliage and prompt repeat bloom. Tidy any remaining growth in late autumn or early spring.