Plum

Plant Overview

Plum (Prunus domestica) is listed in the Rosaceae family and categorized as a fruit with a perennial tree life cycle. This profile summarizes growing information for hardiness, light, soil, water, seed starting, maturity, and other available cultivation details. Difficulty is listed as Moderate.

Plant ID

PLT-0100

Family

Rosaceae

Plant type

Fruit

Life cycle

Perennial tree

Growth habit

Deciduous fruit tree with an upright to spreading canopy

Mature height

Commonly about 12-20 feet, depending on rootstock, cultivar, and pruning

Mature spread

Commonly about 10-20 feet, depending on rootstock and training

Difficulty

Moderate

Growing Conditions

Plum is listed for full sun conditions. Water needs are listed as moderate; maintain consistent moisture during establishment and fruit development while avoiding waterlogged soil. The database soil reference is Deep, fertile, well-drained loam or sandy loam. The listed soil pH range is 6.0-7.0, and the listed hardiness range is 4-9.

Hardiness zones

4-9

Sunlight

Full sun

Soil

Deep, fertile, well-drained loam or sandy loam

Soil pH

6.0-7.0

Water needs

Moderate; maintain consistent moisture during establishment and fruit development while avoiding waterlogged soil

Plant spacing

Allow roughly 12-20 feet between standard-size trees, with closer spacing possible for dwarfing rootstocks

Seed & Germination

For propagation, the database note is plum pits generally require a period of moist cold stratification before germination; named cultivars are normally propagated by budding or grafting. Planting-depth guidance: Seed sowing is mainly used for breeding or rootstock production; named plum cultivars are normally established as budded or grafted nursery trees. Maturity guidance: Grafted or budded plum trees may begin bearing within a few years, with meaningful production increasing as the tree becomes established. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.

Germination

Plum pits generally require a period of moist cold stratification before germination; named cultivars are normally propagated by budding or grafting

Germination temperature

Seed germination follows cold stratification and subsequent favorable growing conditions; named cultivars are normally propagated vegetatively

Seed depth

Seed sowing is mainly used for breeding or rootstock production; named plum cultivars are normally established as budded or grafted nursery trees

Sowing method

Usually established as a budded or grafted nursery tree rather than by direct seeding

Start indoors

Not normally started indoors as a fruit crop; nursery-grown budded or grafted trees are used for named cultivars

Transplanting

Plant dormant or container-grown nursery trees with roots protected from drying, keeping the graft or bud union above the final soil level

Harvest & Propagation

Days to maturity

Grafted or budded plum trees may begin bearing within a few years, with meaningful production increasing as the tree becomes established

Harvest

Harvest when fruit has developed cultivar-appropriate color, flavor, sweetness, and softness and separates readily from the tree

Propagation

Named cultivars are normally propagated by budding or grafting onto selected rootstocks

Seed saving

Pits can be collected from fully mature plums, but seedlings are genetically variable and will not reliably reproduce the parent cultivar

Pollination

Pollination requirements vary by cultivar; many European plums are self-fertile, while others benefit from or require a compatible cultivar flowering at the same time

Garden Information

Common pests

Plum curculio, codling moth, aphids, mites, scale insects, borers, and Japanese beetles

Common diseases

Brown rot, black knot, bacterial canker, plum pockets, leaf spots, and other fungal or bacterial diseases

Uses

Fresh fruit, preserves, jams, baking, drying into prunes, sauces, desserts, and edible landscapes