Beach plum
Prunus maritima
A low, densely branching coastal shrub of northeastern dunes, smothered in white spring blossom and prized for the tart blue-purple plums that follow. The Lady Bird Johnson Wildflower Center documents it native from New Brunswick down the Atlantic seaboard to New Jersey, growing in sand and gravel near the sea, where it is both salt tolerant and drought tolerant. It carries Special Value to Native Bees, feeds birds with its fruit, and is self-incompatible - a second seedling is needed to set a real crop.
Native: 10 US states
Climate fit: moderate (60/100)
Structure
Pollinator
Edible
Light
Full sun
Water
Low water
Mature size
3-8 ft tall · 6 ft apart
Hardy in zones
3a-7b
brutally cold to cold winters
AHS heat range
1-9
Plant range authored in AHS heat-zone terms.
Native in Illinois
No
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A documented larval host for the Hummingbird clearwing moth - caterpillars feed on its foliage before becoming the next generation.
Cold hardiness
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
✓
Well-suited today and still thriving in 2050.
Heat tolerance
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...
Where this plant fits
Suitable across 38 ecoregions - 28 climate-resilient through 2070 · 7 suited today · 3 newly possible by 2070. Best matches first.
Similar plants
Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Educator packet
Plant packet
Beach plum educator packet
A low, densely branching coastal shrub of northeastern dunes, smothered in white spring blossom and prized for the tart blue-purple plums that follow. The Lady Bird Johnson Wildflower Center documents it native from New Brunswick down the Atlantic seaboard to New Jersey, growing in sand and gravel near the sea, where it is both salt tolerant and drought tolerant. It carries Special Value to Native Bees, feeds birds with its fruit, and is self-incompatible - a second seedling is needed to set a real crop.
Scientific name
Prunus maritima
Plant type
shrub
Hardiness
3a-7b
Light
full-sun
Moisture
low
Spacing
72 inches
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.
Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Beach plum (Prunus maritima). Retrieved 2026, August 20, from https://plotwright.com/plants/prunus-maritima
Sources used for this record
This record is compiled from the sources below.
Lady Bird Johnson Wildflower Center Native Plant Database
Botanical research database
Lady Bird Johnson Wildflower Center Native Plant Database
Botanical research database





