Prunus tomentosa
| Nanking Cherry (Prunus tomentosa) | |
|---|---|
| Common names | Downy cherry; Nanking cherry; Manchu cherry |
| Scientific name | Prunus tomentosa |
| Genus | Prunus |
| Family | Rosaceae |
| Order | Rosales |
| Habit | Deciduous, multi-stemmed shrub or small tree |
| Mature size | About 7–10 ft (2.1–3 m) in horticultural descriptions |
| Native range | China, Japan, the Russian Far East, and the Caucasus |
| Flowers | White to pink flowers in spring |
| Fruit | Small red edible cherries, ripening in early to mid-summer |
| Sun | Full sun to partial shade |
| Soil | Moist to average, well-drained soil |
| Years to fruit | Commonly 3–4 years, with variation by plant and conditions |
Prunus tomentosa is a deciduous Asian shrub or small tree commonly grown as Nanking cherry, Downy cherry, or Manchu cherry. The species is accepted in the genus Prunus and family Rosaceae.[1] It produces white to pink flowers in spring and small red fruit in early to mid-summer.[2]
Description[edit | edit source]
Nanking cherry is usually multi-stemmed, with hairy foliage and a mature size described in horticultural references as roughly 7–10 ft (2.1–3 m), although seedlings vary in both plant and fruit traits.[2] The fruit is red, about one-third of an inch across in one regional description, and ripens around June and July.[2] NDSU describes the plant as winter-hardy and moderately fast-growing and lists it for hardiness Zone 2; hardiness performance still depends on the local climate and site.[4]
Its native range includes China, Japan, the Russian Far East, and the Caucasus.[2] The plant is deciduous, with flowering in spring and fruiting in summer; cultivation should accommodate a leafless winter phase.
Cultivation[edit | edit source]
Soil and water[edit | edit source]
Choose a site with well-drained soil that can remain moderately moist during establishment. The species is described for average to moist soils.[2] Established plants tolerate drought, so irrigation can be reduced after the root system is developed while newly planted shrubs receive more consistent moisture.[3]
Seed-grown plants are reported to develop a deep taproot.[3] Siting a seedling with its eventual root system in mind and minimizing repeated disturbance is a reasonable taproot-based inference, not a documented transplant trial.
Sun and humidity[edit | edit source]
Full sun is the strongest general placement, although partial shade is also listed as acceptable.[2] In climates with hot, humid summers, performance can be poor; a site with good light and soil drainage is a more defensible starting point than a wet, heat-trapping position.[2] NDSU also describes the plant as winter-hardy, but a cold-climate hardiness listing should not be treated as a promise of equal performance in hot summer climates.[4]
Seasonal changes[edit | edit source]
Treat the plant as deciduous. Maintain even moisture while it is establishing and during active spring and early-summer growth, then take advantage of its established-plant drought tolerance as the season progresses.[3] Flowers appear in spring and the red crop generally ripens in early to mid-summer, with June–July given for one regional description.[2] Pruning is best planned for late winter, before the new season's growth; the practical pruning guidance emphasizes renewing older canes rather than shearing the shrub indiscriminately.[3]
Propagation[edit | edit source]
Seed propagation is documented. For the moist-cold treatment described in the Utah guidance, keep seed moist at 32–45 °F (0–7 °C) for about 100 days before sowing; this is a procedure for preparing a seed lot, not a guaranteed germination result for every batch.[3] Seedlings vary in fruit and plant characteristics, so seed is useful for raising plants but not for preserving a named fruit type reliably.[3]
Stem cuttings are also listed as an option.[2] The packet does not establish a single best cutting season, rooting medium, or percentage success, so those details should be treated as propagation variables rather than fixed species requirements.
Flowering, fruiting, and harvest[edit | edit source]
White to pink flowers open in spring, followed by red fruit that ripens in early to mid-summer.[2] Cross-pollination is recommended: the Utah guidance calls for two or more plants, so a single shrub should not be assumed to crop as reliably as a compatible planting.[3]
Production commonly begins in years 3–4, with timing affected by seedling variation, plant size, maturity, and growing conditions.[3] Reported seasonal yields range from about 15–50 lb as plant size and maturity increase, but that range is a production observation rather than a guaranteed yield for every shrub.[3] Use the soft fruit promptly because it has a short shelf life.[3]
Late-winter pruning guidance recommends retaining productive younger wood and removing roughly 3–5 old canes as needed to renew a multi-stemmed plant.[3]
Fruit and uses[edit | edit source]
The red cherries are tart and edible. Uses include fresh eating, jams, jellies, pies, preserves, juice, and wine.[2] Their short shelf life makes immediate processing, freezing, or rapid use more practical than long fresh storage.[3]
Pests and diseases[edit | edit source]
Reported problems include borers, brown rot, and branch cankers.[2]
Cultivars and forms[edit | edit source]
Seedlings vary in fruit and plant traits. A white-fruited form marketed as Leucocarpa is listed for this species; the market description provides no basis for claims about its propagation history, performance, or fruit quality beyond its color category.[4]