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Silver cinquefoil

Potentilla argentea · Rosaceae

The gardener's calendar

The right move for September

Ideal time to plant silver cinquefoil: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

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ID card

Foliage
Deciduous, silvery gray-green
Flowering
May to September, pale yellow flowers
Adult size
30 to 50 cm tall, 40 to 60 cm spread
Growth
Moderate to fast
Hardiness
Very hardy (down to -20°C)
Origin
Central and Mediterranean Europe
Soil type
Well-draining, poor to average, tolerates chalky soils

Care

Exposure

Silver cinquefoil thrives in full sun for generous flowering and optimal silvery foliage. It also tolerates part shade, but will flower less abundantly. Avoid overly shaded and damp areas.

Watering

Water moderately during growth, especially in dry periods. Once established, this plant is quite drought-tolerant. Reduce watering in autumn and winter to prevent rot.

Soil and Drainage

Plant the cinquefoil in well-draining, light soil that's rather poor. It dreads stagnant moisture and prefers chalky or neutral ground. If your soil is heavy, improve it with sand or gravel.

Pruning and Maintenance

Lightly cut back the plant in spring to maintain a compact shape and encourage branching. Remove dead or bare stems. Deadheading faded flowers extends flowering right up to the first frosts.

Fertilizing

Silver cinquefoil doesn't need rich fertilizer: a light application of compost in spring is enough. On very poor soil, a balanced fertilizer applied once in May can boost vigor without compromising hardiness.

Diseases and Pests

Very hardy, it's rarely affected by serious diseases. Watch for powdery mildew if humidity is excessive. Prolonged moisture can cause root rot: improve drainage if necessary.

Did you know?

Silver cinquefoil owes its epithet 'argentea' to its finely hairy leaves that reflect light like silver, particularly visible on the undersides. Long ago, this plant was used in European folk medicine for its supposed astringent and healing properties, though these uses are not scientifically validated today.

Where to buy it

Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.

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Tips generated and checked by Viridia — adapt them to your local climate.