Photo: Pancrace Bessa — Public domain · source
Survives zone 6 through 9
Harvest calendar
Best planted in early spring after your last frost, or in fall before the ground freezes, depending on your climate.
Also called Alpine apricot — a mountain species of the French and Italian Alps, smooth-skinned unlike the fuzzy common apricot. Historically important for its seed oil, 'huile de marmotte', once used as an olive-oil substitute in French Alpine cooking and for lamp fuel. ⚠ Kernels/pits cyanogenic — the oil is a processed product, not raw eating.
- Hardiness
- Zone 6–9
- Habit
- Tree
- Edible part
- Fruit
- Ripens
- Aug–Sept
- Mature size
- To 6 m (20 ft)
- Light
- Full sun
- Soil pH
- 5.5–6.5 (mildly acid)
- Environment
- Alpine to montane
- Native range
- French and Italian Alps.
- Status
- Wild
- Years to fruit
- 4–5 yrs
- Growth speed
- Medium
- Spacing
- 450 cm (177 in) apart — about 20 m² (218 sq ft) per plant
- Leaf shape
- Alternate, lance-shaped to obovate, finely and sharply toothed, with a pair of small glands (extrafloral nectaries) on the leaf stalk near the blade — a Prunus signature worth learning, since it separates the genus from most look-alikes.
- Root system
- Worth knowing that in cultivation this is usually the rootstock's root system, not the species' — most Prunus are sold grafted, and vigour, suckering and soil tolerance follow the stock rather than the top. On its own roots the species is shallow-rooted, with the bulk in the top 40–60 cm spreading well beyond the canopy, so it dislikes cultivation underneath and competes badly with grass.
- Fruit description
- Yellow plum-like fruit, about 3 cm across, smooth skin
- Propagation
- Seed (2–3 months cold stratification, up to 18 months to germinate), half-ripe cuttings in July–August, softwood cuttings in spring, or layering.
- Pollination
- Insect-pollinated.
The edible parts listed above are a starting point, not a field guide. Identify a plant with certainty — ideally against a local authority — before eating any part of it, and read the full disclaimer. Spotted something wrong? Report it.
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