Sedum (Showy Stonecrop) in Zone 5a & 5b

Hylotelephium spectabile

When to plant sedum (showy stonecrop) in zone 5b

Zones 5a and 5b 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	Apr 26–May 3
Estimated bloom	Apr 25 '28–May 2 '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 5's season

Zone 5b's frost-free window runs about 148 days, from May 10 to October 5. 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 5b 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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