Cold hardiness & minimum temperature

Is Running Tapestry Foamflower (Tiarella 'Running Tapestry')cold hardy? Hardiness zone & min temp

Also called Running Tapestry Foamflower, Heartleaf Foamflower, Foam Flower.

More about running tapestry foamflower

About Running Tapestry Foamflower

Tiarella 'Running Tapestry' · also called Running Tapestry Foamflower, Heartleaf Foamflower · flowering

Tiarella 'Running Tapestry' is a vigorous, stoloniferous cultivar of heartleaf foamflower, producing dissected, heart-shaped leaves with rich burgundy-red centres that deepen in autumn. Fragrant white flower spikes appear in mid-spring to early summer. An excellent groundcover for shaded woodland gardens, zones 4–8.

Cold limit: USDA 4-8 · RHS H7 (-25–28°C)

Watch for — Crown rot in wet winters: Standing water around crowns in cold weather causes rotting at the base. Improve drainage before planting and avoid heavy mulch directly on the crown. In clay soils, raise beds or incorporate horticultural grit.

What running tapestry foamflower's hardiness rating actually means

Yes — running tapestry foamflower is genuinely cold hardy. Rated RHS H7 and USDA 4-8, it lives outdoors all year and needs winter cold rather than protection from it. Its RHS rating of H7 means: Hardy in the severest European continental winters. On the US scale that maps to USDA 4-8 — the zones where it can be left outdoors year-round.

New to these scales? The USDA hardiness zone map explained covers how the zone numbers work, and you can find your own zone with the zone finder.

Minimum temperature — and what happens below it

Minimum survivable temperature is roughly below about −20 °C. Running Tapestry Foamflower is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for running tapestry foamflower as it gets too cold:

It tolerates winter lows to about −20 °C once established.
Below its rated zone, the visible damage is browned or blackened top growth and, in the worst case, a killed crown or root.
First-year, newly planted, or container-grown specimens are noticeably less hardy than established garden plants — the roots are exposed.

Can running tapestry foamflower go outside or overwinter — and where?

Plant it out within USDA 4-8 and it overwinters with little or no help.
It does not want to come indoors — a warm winter room actually weakens a hardy plant by denying it dormancy.
The real risks in its range are waterlogging, wind-rock on young plants, and a late hard frost on new growth — not ordinary winter cold.

Work back from your local frost dates with the frost-date calculator: the last spring frost and first autumn frost are what really decide when running tapestry foamflower can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H7 figure above.

Running Tapestry Foamflower hardiness — frequently asked questions

Is running tapestry foamflower cold hardy?

Yes — running tapestry foamflower is genuinely cold hardy. Rated RHS H7 and USDA 4-8, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Running Tapestry Foamflower is hardy across USDA 4-8; it belongs in the ground or a frost-proof container, not on a windowsill, and many types actively need a cold winter to perform.

What is the minimum temperature running tapestry foamflower can survive?

Minimum survivable temperature is roughly below about −20 °C. Running Tapestry Foamflower is built for winter — once established it takes hard frost and snow in its stride.

What hardiness zone is running tapestry foamflower?

Running Tapestry Foamflower is rated USDA 4-8 and RHS H7 — Hardy in the severest European continental winters.

Can running tapestry foamflower survive winter outside?

Plant it out within USDA 4-8 and it overwinters with little or no help. It does not want to come indoors — a warm winter room actually weakens a hardy plant by denying it dormancy. The real risks in its range are waterlogging, wind-rock on young plants, and a late hard frost on new growth — not ordinary winter cold.

What happens to running tapestry foamflower below its minimum temperature?

It tolerates winter lows to about −20 °C once established. Below its rated zone, the visible damage is browned or blackened top growth and, in the worst case, a killed crown or root. First-year, newly planted, or container-grown specimens are noticeably less hardy than established garden plants — the roots are exposed.