cluster rose
Rosa pisocarpa · Rosaceae
cluster rose (Rosa pisocarpa) is a perennial shrub in the Rosaceae family. It is native to North America. USDA records it as hardy in zone 4 and warmer, down to about -24°F.
At a glance
| Type | shrub USDA |
|---|---|
| Lifecycle | perennial USDA |
| Native status | native USDA |
| Mature height | 3 ft USDA |
| Light | full-sun USDA |
| Growth rate | rapid USDA |
| Soil pH | 5–7.3 USDA |
| Bloom | June–August USDA |
| Flower color | Red USDA |
| Hardiness zones | 4 and warmer USDA |
| Guild layer | shrub Derived |
USDA quoted from the USDA PLANTS database · Derived computed by a fixed rule from those columns. No value on this page is estimated.
Growing conditions
It needs full sun. Its drought tolerance is rated medium. It handles periodically wet ground (USDA rates its anaerobic tolerance medium). It is recorded on soils from pH 5 to 7.3 — a broad range that spans acidic through mildly alkaline ground. Its cold limit is zone 4.
Size and growth
At maturity it reaches about 3 ft, making it roughly waist to chest height. It grows quickly.
Bloom period
USDA records a bloom period of June through August. Flowers are red.
A flowering date, not a pollinator rating.
Foliage, flower and season
Summer foliage is green, coarse in texture. Its flowers are conspicuous. Its winter foliage is dense, which makes it useful for year-round screening. USDA rates its lifespan as short, so plan on replacing or resowing it rather than treating it as permanent structure.
What the site needs to provide
USDA records it across sites receiving 15 to 104 inches of annual precipitation. The low end of that band is genuinely arid, so it has a wide tolerance for dry country. It needs at least 77 frost-free days to finish its season. It roots to at least 12 inches.
Propagating it
Cuttings is the only propagation method USDA lists. Its seed spreads at a slow rate. It spreads vegetatively at a rapid rate.
Resilience and wildlife
Browsing animals rate it barely palatable — the sourced basis for calling it deer-resistant. Its growth form is recorded as thicket forming.
Role in a guild
Shrub layer. In a layered planting this is woody mid-level structure between the understory and the ground. The layer is derived by a fixed rule from growth habit and mature height.
Tags
Related plants
Others in Rosa
- prickly rose Rosa acicularis
- California wildrose Rosa californica
- Carolina rose Rosa carolina
- dwarf rose Rosa gymnocarpa
Similar role and hardiness
- whitethorn ceanothus Ceanothus cordulatus
- yellow rabbitbrush Chrysothamnus viscidiflorus
- coastal sweetpepperbush Clethra alnifolia
- quince Cydonia oblonga
- slender pride of Rochester Deutzia gracilis
Where this data comes from
Every value on this page comes from the USDA PLANTS database record for symbol ROPI2, or is computed from those values by a fixed rule. Nothing here is estimated or model-generated. Where USDA publishes no value, this page omits the claim rather than filling the gap.
- Quoted from USDA PLANTS: Bloom, Bloom end, browse palatability, cold stratification, Drought tolerance, Edible, fall conspicuous, Flower color, flower conspicuous, foliage color, foliage porosity winter, foliage texture, frost free days min, fruit conspicuous, growth form, Growth rate, Hardiness zones, Lifecycle, lifespan, Light, Mature height, Minimum temperature, Native status, Nitrogen fixation, precipitation max in, precipitation min in, propagation, resprout ability, root depth in, seed spread rate, Soil pH, Soil pH (upper), Tolerance of wet soil, Toxicity, Type, vegetative spread rate.
- Derived by a fixed rule from those columns: Guild layer.
Read our full data sources and methodology.
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