Rubus loganobaccus
Rubus loganobaccus · Rosaceae
📷 Wikimedia Commons · Public domain
The gardener's calendar
Ideal time to plant rubus loganobaccus: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- English name
- Loganberry
- Family
- Rosaceae
- Type
- Fruit-bearing shrub
- Foliage
- Deciduous
- Flowering
- Spring (May-June)
- Fruiting
- Summer (July-August)
- Adult size
- 1.5 to 2 m tall
- Hardiness
- Down to -15 °C
- Origin
- Californian hybrid (1881)
Expert tips
The key tip
Le loganberry produit mieux en sol bien drainé et légèrement acide (pH 6–6.5) : améliore ton sol avec du compost ou de la tourbe avant la plantation. Arrose régulièrement la première année, puis modérément en été sauf en sécheresse prolongée. Rabats les cannes après la récolte pour éviter qu'elles s'épaississent et que les fruits restent petits.
The common mistake
Laisser les cannes non taillées année après année : elles deviennent ligneuses, enchevêtrées, et la plante produit peu. La plupart des jardiniers oublient que chaque canne ne fructifie qu'une fois, puis doit être supprimée.
The pro's trick
Palisse les jeunes cannes horizontalement ou en légère pente dès le départ sur un fil ou un treillis—c'est bien plus facile qu'après. Cela améliore l'exposition au soleil et facilite la récolte.
Seasonal watch
Fin d'hiver/début de printemps : inspecte les cannes pour la pourriture grise (Botrytis) qui s'installe sur le bois humide. Supprime toute partie nécrosée ou suspecte avant la débourrage. L'excès d'humidité hivernale tue plus de loganberries que le froid.
Care
Exposure
Position it in full sun or partial shade for optimal fruiting. At least 6 hours of direct sunlight daily promotes sweet fruit production. In very hot climates, light afternoon shade will protect it from sunburn.
Soil and planting
Prepare rich, well-drained soil that is slightly acidic (pH 6 to 6.5). Enrich the soil with compost or well-decomposed manure before planting. Ensure good drainage to prevent root asphyxiation.
Watering
Water regularly, especially during growth and fruiting periods, to keep the soil moist without waterlogging. During dry spells, deep watering once a week is ideal. Reduce watering in winter.
Pruning and training
Prune after harvest by removing canes that have fruited and keeping the young canes of the year. Pinch back shoot tips in spring to encourage branching. Train flexible canes onto a support or trellis to make fruit picking easier.
Fertilizer
Apply balanced fertilizer in spring before flowering. Compost or organic fertilizer rich in potassium supports fruit production. Avoid excess nitrogen, which favors foliage at the expense of fruit.
Diseases and pests
Watch for powdery mildew and grey mold, particularly in humid weather. Ensure good air circulation by pruning regularly and removing dead wood. Inspect regularly to detect spider mites and fruit flies.
Did you know?
The loganberry was born in 1881 in California at the home of Judge James Logan, resulting from a chance cross between American wild blackberry and European raspberry. This unique hybrid fruit combines the sweet-tart flavor of both its parents and remains a botanical and culinary curiosity in Europe, where it is less well known than its ancestors.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
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Tips generated and checked by Viridia — adapt them to your local climate.