Science · Specimen Trees
Beach Plum
An eastern North American coastal plum that forms thickets in sandy habitats. Its tart fruit is useful for preserves, while suckering and variable seedling fruit quality should be expected.
Prunus maritima · Deciduous coastal fruit shrub or small tree
Profile
- Habitat
- Atlantic coastal dunes and sandy sites.
- Pollination
- Plant genetically different compatible selections for more dependable fruit set.
- Planting
- Set the root flare at grade and protect the expanding root zone from compaction.
- Assessment
- Confirm identity, local climate suitability and drainage before prescribing care.
Water & soil targets
- Moisture (VWC)
- Site-calibrated; varies by soil and rootstock
- Salinity tolerance
- Tolerates coastal exposure better than many orchard fruits; saline irrigation is a separate risk.
- Drought tolerance
- Good once established in suitable sandy soil.
Optimal root measurement depth
8–18 in
Most absorbing tree roots live in the upper 12–18 inches, out toward the drip line. Typical guidance; confirm with a soil probe on site.
Water during establishment and fruit development in prolonged dry weather; allow sandy soil to drain and do not assume coastal adaptation means tolerance of waterlogged roots.
Problems to watch
- Black knot
- Brown rot of fruit
- Plum curculio where present
Stress signs
- Wilted shoots
- Small or shriveled fruit
- Premature leaf drop
Where you'll find it
- Preserves and jelly
- Coastal habitat plantings
More specimen trees
Coast Live OakSouthern Live OakDate Palm (Medjool)Canary Island Date PalmCoast RedwoodJapanese Maple
All Science profilesGeneral agronomic guidance and typical ranges; actual targets vary by site, soil, climate and season.