Heuchera (Coral Bells) in Zone 8a & 8b

Heuchera americana

When to plant heuchera (coral bells) 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. Heuchera (Coral Bells) 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: 1 per square foot (square-foot-gardening spacing). Mature height: 1-3 ft.

Heuchera is grown for leaf colour that holds most of the year, in a range from lime green through caramel to something close to black.

How heuchera (coral bells) fits zone 8's season

Zone 8b's frost-free window runs about 230 days, from March 25 to November 10. Heuchera (Coral Bells) 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.

Heuchera (Coral Bells) 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 Heuchera (Coral Bells).

Where to buy heuchera seeds

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