Sweet Prune Plum Damson Tree

Sweet Prune Plum Tree

Sweet Prune is a classic German prune plum tree, also known as Hauszwetsche sweet prune. It is self-fertile, crops in September, and is especially useful for buyers who want a dark, sweet-spicy plum for eating fresh, baking, preserving and drying into prunes. ^{[1] [2] [8]}

The fruit is oval, dark purple to dark blue, often with a pale bloom and yellow to greenish-yellow flesh. The fruit size is between Shropshire Prune and Merryweather. The flesh is drier than many soft dessert plums, holds together well when cooked, and the stone usually separates well from the flesh, making it easier to prepare for plum cake, compote, preserves, freezing and drying. ^{[1] [2] [6] [7] [8]}

Sweet Prune is usually ready in September, often late September. German fruit sources describe Sweet Prune as slower to come into strong cropping, but capable of high and regular harvests from around the sixth year. It is a proper long-term garden prune plum, not a quick patio novelty. ^{[1] [2] [7]}

Storage is another useful advantage. Specialist German guidance says Sweet Prune storage should not exceed around four weeks, so it has better keeping potential than many very soft dessert plums. For best flavour, eat ripe fruit fresh; surplus fruit can be baked, preserved, frozen or dried. ^{[7] [9]}

Sweet Prune is self-fertile, so one tree can crop on its own without a second plum tree. A compatible plum nearby may still improve fruit set, but it is not essential. For pollination matching, Sweet Prune should be treated as pollination group 3 based on the product-specific supplier listing. If you want to add a pollination partner to improve fruit set, choose a compatible plum, damson or gage in pollination group 2, 3 or 4. ^{[1] [5] [6]}

Sweet Prune is hardy, with RHS rating Prunus domestica ‘Hauszwetsche’ aka Sweet Prune as H5, which means around -15°C to -10°C. It has white spring blossom, usually around April, but the blossom is more vulnerable than the tree itself, so a sunny, sheltered planting position is important to reduce the risk of poor weather or late frost damaging the crop. ^{[2] [6]}

Planting Sweet Prune Plum Tree

Plant Sweet Prune in full sun, in fertile, well-drained soil. Choose a sheltered position away from cold exposed winds, very wet ground and frost pockets. The tree is hardy, but poor blossom weather can reduce fruit set. ^{[2] [4]}

It is suitable for open-ground planting where it has room to develop, or for training as a larger fan against a warm wall or fence. ^{[3] [4]}

Water well after planting and keep the root area watered during dry spells while the tree establishes. A mulch over the root zone helps conserve moisture, but keep mulch clear of the stem. On poorer soils, improve the planting area with organic matter rather than planting into a small pocket of compost surrounded by poor ground.

Pruning Sweet Prune Plum Tree

Prune plum trees in spring or summer rather than winter. This reduces the risk of silver leaf and bacterial canker, both of which are more of a concern when stone fruit is pruned at the wrong time. For a young bush tree, build a balanced open structure by removing damaged, crossing or badly placed shoots. Once the tree is cropping well, keep the canopy open enough for light and air. ^[10]

As with other plums, Sweet Prune can be affected by ordinary plum problems such as plum moth, brown rot and fruit damage. The best practical approach is to plant it well, keep the tree open and healthy, avoid winter pruning, and remove damaged or diseased fruit where needed. ^{[10] [11] [12]}

Interesting Information About Sweet Prune Plum Tree

The name Hauszwetsche, or Hauszwetschge in German spelling, refers to an old Central European prune-plum type rather than a modern supermarket-style dessert plum. It has been widespread in Germany and Central Europe since at least the 17th century, with many local forms and selections developing over time. ^{[1] [7] [8]} The German name Hauszwetsche roughly means “house plum” or “home prune plum”, a useful clue to its old role as a practical kitchen plum for baking, cooking and drying.

That history explains why Sweet Prune is so useful in the kitchen. It belongs to the old prune-plum tradition: darker, more aromatic fruit, good sugar, useful stone separation and flesh that suits cooking, baking and drying. FRUCTUS, the Swiss fruit-conservation organisation, named Hauszwetschge the Swiss Fruit Variety of the Year 2018 and described ripe Hauszwetschgen as very suitable for drying. ^[8]