Overview
Sedum spectabile 'September Glow' is a succulent in the genus Sedum, part of the Crassulaceae family. It typically grows around 0.4 m tall. Sedum spectabile 'September Glow' grows best in full sun, and tolerates most soils. Its UK hardiness is rated H7. It is native to China and Korea.
About the genus
Sedum is a large genus of flowering plants in the family Crassulaceae, members of which are commonly known as stonecrops. The genus has been described as containing up to 600 species, subsequently reduced to 400–500. They are leaf succulents found primarily in the Northern Hemisphere, but extending into the southern hemisphere in Africa and South America.
Wikipedia contributors, "Sedum", CC BY-SA 4.0 — Sedum
In the garden
Sedum spectabile 'September Glow' is a succulent perennial in the Crassulaceae, native to China and Korea, that reaches roughly 0.4 m. It carries flat-topped clusters of pink flowers through June to September, providing a clear late-summer display above a mat of blue-green leaves. Plant in full sun and choose soil that drains well; it will grow in sandy, loamy or clay substrates provided they are not waterlogged and remain 'well-drained' or at most moist but well-drained. Its UK hardiness rating is H7 (fully hardy), and it corresponds to approximately USDA zones 5–9, so it tolerates outdoor winter conditions across the UK without winter protection. Use Sedum spectabile 'September Glow' where a low, sun-loving succulent suits the scheme — sunny mixed borders, gravel beds or any spot where summer colour and structural flowerheads are required. At about 0.4 m tall the flower heads sit clearly above the foliage from June to September, making the plant an obvious late-season component in sunlit situations.
Growing conditions
Best soil and position for Sedum
- Sunlight
- Full sun
- Soil type
- Sandy, Loamy, Clay
- Soil moisture
- Well-drained, Moist but well-drained
- UK hardiness
- H7
Plant details
Sedum spectabile 'September Glow' size, habit and characteristics
- Plant type
- Succulent
- Height
- 0.4 m
- Native to
- China, Korea
Frequently asked questions
Where is the best place to plant Sedum spectabile 'September Glow'?
Sedum spectabile 'September Glow' prefers full sun.
What soil does Sedum spectabile 'September Glow' need?
Sedum spectabile 'September Glow' is adaptable and grows happily in most soil types, including sandy, loamy and clay. Aim for soil that stays well-drained to moist but well-drained.
How big does Sedum spectabile 'September Glow' grow?
Sedum spectabile 'September Glow' reaches a height of 0.4 m.
Is Sedum spectabile 'September Glow' hardy in the UK?
Sedum spectabile 'September Glow' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
From the Fenn Plants journal
- Notes on DaffodilsWhen to plant daffodil bulbs in the UK, how deep, how to naturalise them in grass, why daffodils stop flowering (“blindness”), and why you should never mix cut daffodils with other flowers.
- Keeping Your NerveHow to garden through a heatwave — the best time to water, why deep soaks beat daily sprinkles, caring for pots and vulnerable plants, and why you can let the lawn go brown.
- Made to LastHow to clean, store and protect garden pots and planters — the frost-proof vs frost-resistant difference, winter care for terracotta and ceramic, and how to reuse a broken pot.
More in the Sedum genus
- Sedum 'Autumn Joy'Autumn Joy Stonecrop

- Sedum aizoonAizoon stonecrop

- Sedum aizoon 'Aurantiacum'Stonecrop

- Sedum roseaRoseroot

- Sedum spectabileShowy stonecrop, Iceplant, Butterfly stonecrop
- Sedum spectabile 'Brilliant', or 'Atropurpureum'Showy Stonecrop
- Sedum spectabile 'Meteor'Stonecrop
- Sedum spectabile 'Sunset Cloud'Stonecrop