Overview
Sempervivum cantabricum subsp. urbionense is a matforming, rosette-forming alpine rockery in the genus Sempervivum, part of the Crassulaceae family, with evergreen, fleshy, pointed leaves, green, grey, red foliage. Sempervivum cantabricum subsp. urbionense grows best in full sun, and tolerates loam and sand soils and any pH. Its UK hardiness is rated H5. Suggested uses include rock garden, scree bed, wall crevice, trough and alpine house.
About
Sempervivum cantabricum subsp. urbionense is a perennial succulent cultivar forming dense mats of fleshy, pointed rosettes. As a member of the Sempervivum genus, it maintains evergreen foliage throughout the year and thrives in full sun with well-drained, gritty soil. This cultivar is hardy to UK zone H5 and is suitable for rock gardens, scree beds, wall crevices, troughs, and alpine houses. It is extremely drought-tolerant once established and can grow in a range of soil types and pH levels, making it a resilient choice for various garden aspects and exposures.
Growing conditions
Best soil and position for Sempervivum
- Sunlight
- Full sun
- Soil type
- Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, East-facing, West-facing, North-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
Sempervivum cantabricum subsp. urbionense size, habit and characteristics
- Plant type
- Alpine Rockery, Cactus Succulent
- Habit
- Matforming, Rosette-forming
- Foliage
- Evergreen, Fleshy, Pointed leaves, Green, Grey, Red
- Suggested uses
- Rock garden, Scree bed, Wall crevice, Trough, Alpine house
Care notes
Pruning and caring for Sempervivum cantabricum subsp. urbionense
- Propagation
- Offsets in spring
- Pest resistance
- Vine weevil, Sempervivum leaf miner, Slugs, Snails
- Disease resistance
- Rust
Frequently asked questions
Where is the best place to plant Sempervivum cantabricum subsp. urbionense?
Sempervivum cantabricum subsp. urbionense prefers full sun. It suits exposed and sheltered positions.
What soil does Sempervivum cantabricum subsp. urbionense need?
Sempervivum cantabricum subsp. urbionense grows best in loam and sand soil. It is happy in soil of any pH. Aim for soil that stays well-drained.
Is Sempervivum cantabricum subsp. urbionense hardy in the UK?
Sempervivum cantabricum subsp. urbionense has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Sempervivum cantabricum subsp. urbionense?
Offsets in spring.
More in the Sempervivum genus
- Sempervivum 'Black'
- Sempervivum arachnoideum 'Red Papaver'
- Sempervivum arachnoideum subsp. tomentosum 'Minor'
- Sempervivum borissovae
- Sempervivum calcareum 'Benz'
- Sempervivum marmoreum 'Brunneifolium'
- Sempervivum tectorum 'Red Flush'
- Sempervivum 'Bellotts Pourpre'