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Marsh Rose Mallow

Hibiscus moscheutos
Edible value1Medicinal value1Other uses1
annual2×1.2 mzone 5–9light shade

Will it grow where I live?

Marsh Rose Mallow is hardy to zone 5 – that covers all of Central Europe and the British Isles, and every USDA zone from 5 upwards.

Or check it for your location right here:

Winter hardiness by USDA zone, summer warmth by heat sum – the same values the app and the plant finder use.

Profile

Family
Malvaceae
Habit
annual
Height
2 m
Spread
1.2 m
Growth
fast
Lifespan
10 years
First yield
after 2 years
Hardiness
zone 5–9
Shade tolerance
light shade
Soil
Sand, Silt, Loam
Soil moisture
semi-dry – very wet
pH
5.3 – 7
Synonyms
Swamp rose mallow, Swamp Rosemallow
pollen source

Flowering & harvest

J F M A M J J A S O N D
Flowering
Fruit harvest
Leaf harvest

Times apply to the northern hemisphere in a temperate climate and shift with altitude and cultivar.

Uses

Edible1 of 10
Medicinal1 of 10
Other uses1 of 10

Frequently asked questions

Marsh Rose Mallow: how big does it get?

Marsh Rose Mallow (Hibiscus moscheutos) grows as a annual and reaches roughly 2 m in height when mature, with a spread of about 1.2 m. Growth is fast.

Marsh Rose Mallow: what site does it need?

Marsh Rose Mallow tolerates light shade. Suitable soils are Sand, Silt, Loam. Soil moisture should be in the range semi-dry – very wet. The pH may lie between 5.3 and 7.

Marsh Rose Mallow: is it hardy?

Marsh Rose Mallow is listed as hardy in zone 5–9 and survives normal winters outdoors there.

Marsh Rose Mallow: will it grow in Central Europe?

Marsh Rose Mallow is hardy to zone 5 – that covers all of Central Europe and the British Isles, and every USDA zone from 5 upwards.

Marsh Rose Mallow: when does it flower?

In a temperate northern-hemisphere climate it flowers from July to September.

Marsh Rose Mallow: when is it harvested?

In a temperate northern-hemisphere climate the fruit ripens from September to November.

Marsh Rose Mallow: is it poisonous?

Individual parts of Marsh Rose Mallow are noted as mildly problematic — the plant does not count as poisonous. With wild plants, never rely on a database alone, only on a confident identification.

Marsh Rose Mallow: what is it used for?

Rated on a scale up to 10: Edible 1/10, Medicinal 1/10, Other uses 1/10.

Community experience

No first-hand reports for this plant yet.

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