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Angular solomon's seal

Polygonatum odoratum · Asparagaceae

The gardener's calendar

The right move for September

Ideal time to plant angular solomon's seal: 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
Flowering
Spring (April-May)
Adult size
40-60 cm tall
Growth
Slow to moderate
Hardiness
Very hardy (-20°C)
Origin
Temperate Europe and Asia
Soil type
Rich, humus-based, well-draining

Care

Watering

Keep the soil regularly moist during the growing season from April to September. Reduce watering in autumn and winter when the plant goes dormant. Avoid excessive water that could rot the rhizomes. A layer of mulch helps retain soil moisture.

Light exposure

Prefer partial shade or dappled light. Polygonatum tolerates deep shade well, making it an excellent woodland plant. Avoid direct, scorching sunlight, especially in Mediterranean regions.

Pruning and cutting

No pruning is necessary. Simply let the foliage naturally yellow and disappear in autumn. You can clean up dead stems in late winter before spring growth resumes.

Soil

Choose soil rich in organic matter, slightly acidic to neutral. Add well-rotted compost or potting soil at planting time to help establishment. Good drainage is important to prevent rhizome suffocation.

Fertilizing

An annual application of well-aged compost in spring is usually sufficient. Diluted balanced fertilizer at the start of growth can support development. Avoid excess nitrogen which promotes foliage at the expense of flowering.

Diseases and pests

Polygonatum is generally robust. Watch for slugs and snails that enjoy tender foliage in spring. In waterlogged soil, root rot can occur. Ensure good drainage and air circulation to prevent these issues.

Did you know?

The name "Solomon's seal" comes from an old legend: the circular scars left on the rhizomes after the stems die each year resemble the impressions of King Solomon's seal. In traditional herbal medicine, these scarred rhizomes were long believed to have medicinal properties, though internal use today is not recommended without professional advice.

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.