Loganberry (Rubus loganobaccus) - How to Grow & Care Guide

Plant Snapshot

Common Name: Loganberry
Latin Name: Rubus loganobaccus
Hardiness Zones: USDA zones 5–9. In colder zones plants may die back to the crown and produce less fruit. In warmer zones growth is more vigorous and fruiting is reliable.
Typical Height: Arching canes typically 3–6 ft (90–180 cm) tall from the crown
Typical Spread: Canes and suckers typically form patches 5–10 ft (150–300 cm) wide if unmanaged
Bloom Period: Flowers in late spring and fruits in mid to late summer
Soil Preferences: Prefers fertile, consistently moist but well drained soil. Slightly acidic to neutral pH about 5.5–7.0. Waterlogged soils reduce yield and increase root problems.
Light Preferences: Full sun for best fruiting. Tolerates light afternoon shade but yields drop in significant shade.
Toxicity: Berries are edible and not known to be poisonous. Thorny canes can cause mechanical injury. If pets consume large quantities consult a veterinarian or poison control.
Propagation: Propagate by tip layering, root suckers, and cane or hardwood cuttings. Seed produces variable offspring so vegetative propagation is used to preserve cultivar traits.

Key Facts

A thorny bramble that is a hybrid between blackberry and raspberry
Produces dark red to maroon aggregate berries that are tart and good for preserves
Berries are borne on arching canes and are edible
Fruits primarily on second year canes
Commonly propagated by tip layering and root suckers
Performs best in full sun with consistent moisture and good drainage
Can form colonies by suckering if not managed

Loganberry is a thorny hybrid bramble between blackberry and raspberry that produces dark red to maroon aggregate berries prized for jams and desserts. It grows on arching canes and is usually propagated vegetatively to preserve cultivar traits.

Identification and habit

Loganberry is a thorny bramble with arching canes and edible aggregate berries that ripen dark red to maroon. Arching canes typically reach about 3 to 6 feet tall from the crown. If unmanaged the plants can form patches roughly 5 to 10 feet wide by sending up root suckers.

Where to grow and best uses

Grow loganberry in full sun for best fruiting. It prefers fertile consistently moist but well drained soil with a slightly acidic to neutral pH around 5.5 to 7.0. Expect reliable performance in USDA zones approximately 5 to 9. Use it as a productive bramble hedge or a dedicated patch for preserves and desserts, but plan for sucker control where space is limited.

Soil water and light

Consistent moisture supports steady growth and good fruit set. Waterlogged soils reduce yield and increase root problems. Provide good drainage and avoid sites that stay saturated. Light afternoon shade is tolerated but significant shade will reduce yields.

Pruning and after flowering care

Loganberry fruits primarily on second year canes. Remove and compost canes that have finished fruiting to make room for new primocanes. Train arching canes on a simple trellis to improve air flow and make harvest easier. Regular removal of unwanted suckers keeps colonies from spreading.

Propagation and managing spread

Vegetative methods preserve cultivar traits. Propagate by tip layering and by removing and replanting root suckers. Hardwood and semi hardwood cuttings are also used. Seed produces variable offspring so seed is not recommended when you want to keep a named cultivar true to type. To limit spread remove new suckers at the crown or use edging to block roots.

Harvest and uses

Fruits appear in mid to late summer depending on climate and cultivar. Harvest when berries turn dark red to maroon and yield slightly to the touch. Berries are tart and well suited to jams jellies and baking.

Common concerns

Thorns can cause mechanical scratches so wear gloves when pruning and harvesting. The plants can form colonies by suckering if not managed. There are no widely reported poisonous compounds in the fruit but consult a veterinarian or poison control for concerns about pets that eat large quantities.

Frequently asked questions

How fast does Loganberry grow?: Loganberry sends up arching primocanes that reach typical cane height within a single season. New suckers can expand a planting into a patch over several seasons if not controlled.
Are loganberries edible?: Yes. The berries are edible and are commonly used for jams preserves and baking.
When do loganberries flower and fruit?: Flowers appear in late spring and fruit follows in mid to late summer with exact timing varying by climate and cultivar.
How do I propagate Loganberry?: Propagate by tip layering root suckers and by hardwood or semi hardwood cuttings to preserve cultivar traits. Seedlings are variable and may not match the parent.
How do I control Loganberry spread?: Remove unwanted suckers at the crown prune out old canes and consider root barriers or frequent maintenance to keep plants within a desired area.