Beach plum (Prunus maritima)

Beach plum

Also known as: Gravesii

The Prunus maritima is a species of plum that's native to the east coast of the United States. An edible drupe is produced as the fruit in red, yellow, blue or nearly black color. The beach plum is commercially grown to produce jam. The species is endangered in Maine.

Scientific classification

Species

Beach plum (Prunus maritima)

Roses, elms, figs, and allies

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Toxic to Pets

Toxicity

Perennial

Lifespan

Shrub

Plant Type

Spring, Summer, Late winter

Bloom Time

1.8 m to 2.5 m

Plant Height

1.8 m to 3 m

Spread

Green, Red, Orange

Leaf Color

1 cm to 1.5 cm

Flower Size

White

Flower Color

Moderate

Growth Rate

Images of Beach plum

Attributes of Beach plum

Growth Rate

The maritime beach plum presents a moderate growth rate, primarily observable in spring and summer. This results in purposeful progression in leafy canopy expansion and controlled upward growth. The moderate speed allows for rigorous root development and healthier, compact fruit clusters during the growing season. The growth rate assures its resilience against coastal conditions, contributing to beach plum's valued status in dune stabilization efforts.

Toxicity

Beach plum's seeds contain hydrogen cyanide, posing mild toxicity to humans, cats, and dogs primarily through ingestion. In humans, symptoms include dizziness and difficulty breathing; severe cases might lead to convulsions or coma. Cats and dogs may experience physical discomfort or severe symptoms. Immediate veterinary care is crucial if pets ingest the seeds. The fruit flesh is safe to eat.

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Care Guide for Beach plum

Every 1-2 weeks

Water

Full sun

Sunlight

0 - 32 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Beach plum originates from coastal areas, thriving in sandy soils with fluctuating moisture and salt spray tolerance. It has moderate drought resistance, preferring watering every 1-2 weeks. Well-suited for temperate climates, beach plum is ideal for seaside landscapes due to its resilience.

Fertilize: Beach plum thrives with balanced nutrition from annual fertilizers in early spring, using a moderate rate (10-10-10 ratio), a handful per square meter. Avoid over-fertilization, assess needs as beach plum matures, and never fertilize young plants in the first year. Water thoroughly post-application.

Pruning: Beach plum is a hardy shrub valued for its sweet fruits and coastal adaptability. Pruning in late spring is crucial for removing dead branches, improving airflow, and enhancing fruit yield. Annual, light pruning helps maintain size and health, but avoid heavy pruning during active growth to reduce stress.

Propagation: Beach plum is a hardy fruit-bearing shrub from Eastern North America's coastal areas. To propagate, take hardwood cuttings in dormancy, use rooting hormone, and plant in well-draining, moist soil. Protect from wind, and harvest suckers for additional planting to enhance yield.

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