Sedum (Showy Stonecrop) in Zone 8a & 8b
Hylotelephium spectabile
When to plant sedum (showy stonecrop) in zone 8b
Zones 8a and 8b share the same average frost dates in our data, so this page covers both.
Method: Direct sow: Direct-sow outside. Sedum (Showy Stonecrop) doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | Mar 11–Mar 18 |
| Estimated bloom | Mar 10 '28–Mar 17 '28 (First real harvest the season after planting) |
Spacing: about 2 square feet per plant (square-foot-gardening spacing). Mature height: 1-2 ft.
Showy stonecrop is the border sedum with flat flower heads that open dusty pink in late summer and dry to rust.
How sedum (showy stonecrop) fits zone 8's season
Zone 8b's frost-free window runs about 230 days, from March 25 to November 10. Sedum (Showy Stonecrop) takes about 1 growing season to reach full flowering, so what matters here is how many of these seasons it gets, not whether one is long enough.
Sedum (Showy Stonecrop) is hardy in zones 4-9, so in zone 8b it stays in the ground through winter and comes back rather than being replanted. Allow about 1.5 ft of spread at maturity.
Good companions
No standout companions recorded yet for Sedum (Showy Stonecrop).
Where to buy sedum seeds
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See it growing
Search YouTube for "growing sedum (showy stonecrop)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 8b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →

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Growing Sedum (Showy Stonecrop) in USDA zone 8b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
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