Angers Stonecrop: complete guide

Overview

Angers stonecrop (Sedum andegavense), also known as Angers vermicularia, is a rare, compact succulent from the Crassulaceae family, native to the western Mediterranean region, from southern France to southwestern Spain. This tiny plant grows on rocks, stony slopes and lean soils where almost nothing else grows.

This plant is perfect for rock gardens, alpine troughs, green roofs and succulent borders where drought tolerance is essential.

Appearance & bloom

Angers stonecrop forms very compact, spreading mats only a few centimeters high (5-20 centimeters maximum). The leaves are very small, stiff, fleshy, grey-green to reddish-tinged, especially in dry seasons.

The bloom appears from April to June as minute white to light-pink florets in small, densely packed panicles at the stem tips. Although small, the flowers are attractive to pollinators.

After blooming, the flower-bearing stems die off, but the plant quickly recovers via seed and vegetative runners.

Ideal location

Angers stonecrop thrives in full sun and cannot tolerate shade. Plant in a sunny, dry-loving spot where at least 6-8 hours of direct sunlight is available.

The plant is suitable for:

• Rock gardens
• Alpine troughs
• Wall tops and steep slopes
• Green roofs (intensive culture)
• Ground cover between other succulents

Soil

Angers stonecrop is very tolerant of poor, lean soils. It even grows in pure sand or gravel, as long as some basic materials are present. pH 6.0-8.0 is ideal.

Do not add compost or feeding - the plant actually grows worse in nutrient-rich soils. In containers, use a mix of sharp sand, perlite and tiny amounts of cactus potting mix.

Watering

Once established, Angers stonecrop tolerates months without water. Water only during prolonged drought periods (more than 3 months without rainfall).

Overwatering is deadly - this plant rots quickly in wet winters. In temperate zones with heavy winter rain, well-drained location is essential.

Maintenance

Angers stonecrop requires minimal care. Remove only dead plant parts. Pruning is not needed - let it grow as a natural cover mat.

In very dense groups, you can remove some stems here and there for airy growth.

Maintenance calendar

March-April: Plant new specimens, add sand to heavy soils.

April-June: Bloom period, no water needed (rain is sufficient).

July-September: Complete rest, no care needed.

October-February: Winter dormancy, still no water needed.

Winter hardiness

Completely winter-hardy to -20°C in Europe. This plant survives much harder winters than expected. Leaves turn red-purple in winter - this is normal.

Companion plants

Angers stonecrop combines beautifully with:

• Other small sedums (Sedum acre, rupestre)
• Houseleek species (Sempervivum)
• Alpine stonecrop (Sedum reflexum) - larger contrast
• Mountain avens (Dryas octopetala) - bloom contrast
• Saxifrage (Saxifraga) - texture cover

Applications

Rock garden: Perfect filling between larger rocks.

Green roofs: Used in intensive green roof systems.

Mat-forming: Natural ground cover.

Container plants: Also suitable for pots in alpine troughs.

Propagation

Via seeds (direct sowing in sand mix, light preference) or via leaf cuttings. Very easy to propagate in dry conditions.

Common problems

Rotting: Almost always overwatering. Let the plant dry in winter.

Weak growth: Usually in shade. Move to fuller sunny spot.

No bloom: Plant is probably young (first year after growing). Bloom appears after 1-2 years.

Conclusion

Angers stonecrop is a tiny, characteristic succulent for those who want to emulate alpine dry conditions. With strong winter hardiness, extreme drought tolerance and minimal maintenance requirements, it is ideal for rock gardens and green roofs.

Find specimens at specialized succulent nurseries. Perfect for collectors of rare alpine plants.