‘Bleue de Belgique’: a traditional plum with deep blue skin and golden, juicy flesh. Partially self-fertile and productive. Harvest in August. Grafted on low-stem.
Description
The ‘Bleue de Belgique’ plum tree is a traditional heritage variety valued for its deep blue fruits with golden-yellow flesh, juicy and richly flavoured. This old Belgian cultivar, grafted on low-stem rootstock, is hardy, productive, and perfect for family orchards or home fruit gardens.
Origin: Belgium
Botanical family: Rosaceae
Notable traits: Long cultivated in Wallonia and northern France, well-suited to temperate, humid climates
Mature height: 3 to 4 m (low-stem)
Mature width: about 3 m
Habit: Open, naturally well-branched
Bark: Smooth, reddish-brown to grey
Foliage: Deciduous, bright green, finely serrated
Growth: Moderate to vigorous
Hardiness: Very good (down to -25 °C)
Flowering time: April (mid-season)
Flowers: White, in clusters, bee-friendly
Fruits: Large oval fruits, bluish skin with natural bloom, golden-orange flesh, juicy, sweet, aromatic, with a pleasant tartness. Freestone.
Harvest: August to early September
Storage: Keeps 1 week fresh. Ideal for jam, baking or drying.
Ideal exposure: Full sun, sheltered from cold winds
Suitable soil: Deep, loose, fertile, well-drained
pH: Neutral to slightly calcareous
Season: November to March (frost-free)
Steps:
Dig a wide and deep hole (approx. 60 × 50 cm), loosen the bottom soil.
Mix extracted soil with mature compost or rich planting mix.
Place tree with graft above ground, secure to a strong stake.
Water generously and mulch thickly to retain moisture.
Tip: Use root and trunk guards if rodents or deer are a concern.
At planting: Thorough watering
Later: Water regularly during the first year, then only in dry spells
When and how:
Rootstock: Saint-Julien for adapted growth
Best location: Orchard, cottage garden, edible hedge
Good companions: Marigolds, mint, ground covers
Excellent both fresh and for compotes, tarts, homemade jams, or baked desserts. Its rich flavour suits rustic or refined recipes.
Potential issues: Mildly sensitive to aphids and rust, rarely affected by brown rot
Prevention: Airy pruning, horsetail sprays, or natural copper-based treatments
Choose a sunny, well-drained site. Use mulch to retain moisture. Young trees benefit from support and protection during dry spells.
Self-fertile, though yields improve with other mid-season plums (e.g., Reine-claude dorée, Reine-claude d’Oullins, Quetsche d’Alsace, Mirabelle de Metz, Mirabelle de Nancy, Victoria)
The ‘Bleue de Belgique’ plum tree is a classic heritage fruit that deserves a spot in every garden. Rustic, flavourful and productive, it rewards growers with delicious, juicy plums ideal for all kinds of preparations. Grafted on low-stem, it’s easy to grow and long-lived — perfect for gardeners who value authenticity, flavour, and ease of care.
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‘Bleue de Belgique’: a traditional plum with deep blue skin and golden, juicy flesh. Partially self-fertile and productive. Harvest in August. Grafted on low-stem.
