Heuchera (Coral Bells) in Zone 6a & 6b

Heuchera americana

When to plant heuchera (coral bells) in zone 6b

Zones 6a and 6b 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	Apr 11–Apr 18
Estimated bloom	Apr 10 '28–Apr 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 6's season

Zone 6b's frost-free window runs about 173 days, from April 25 to October 15. 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 6b 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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