It can spread aggressively via rooting stem tips in ideal conditions.

Does it need a trellis?

It is a low growing, trailing plant and generally does not require support.

Plant guide

European dewberry.

Rubus caesius

Pronounced ROO-bus SEE-see-us

Also known as Dewberry, European dewberry

The European dewberry is a low growing, trailing bramble that spreads easily through rooting stem tips. It produces small, white flowers followed by edible, bluish black berries in late summer. You will often find it thriving in damp, shaded areas like woodland edges or hedgerows.

At a glance

Care level: Easy
Plant type: Deciduous shrub
Light: Partial shade to full sun
Indoor light: Bright indirect
Water: Every 3 to 7 days
Mature size: 1 to 2 feet tall
Growth rate: Fast
Hardiness: USDA 4 to 8
Bloom time: Late spring to mid summer

Care

Keep the soil consistently moist as this plant prefers damp conditions. Watch for excessive spreading, as the stems root wherever they touch the ground. Prune back old canes after fruiting to keep the patch tidy and productive.

Watering: Keep the soil evenly moist but never waterlogged.
Feeding: Apply a balanced organic fertilizer in early spring to support new growth.
Pruning: Cut back canes that have finished fruiting in late autumn.
Repotting: Repot only if you are growing it in a container, otherwise it prefers to spread in the ground.
Soil: Moist, fertile, well-draining soil
Soil pH: Neutral to slightly acidic
Temperature: -25 to 30°C
Humidity: 40 to 70%
Drought tolerance: Moderate
Lifespan: Perennial, typically 5 to 10 years.
Deer and rabbits: Moderate

Signs it needs repotting

Roots growing out of the drainage holes.
Stunted growth despite regular watering.

Safety

People: The plant is not toxic, but the stems are covered in sharp prickles that can cause skin scratches.
Children: The sharp thorns on the stems pose a significant scratching risk to small children playing nearby.
Contact allergens: The sharp prickles on the stems can cause mechanical skin irritation.
Airborne allergens: Pollen may cause mild seasonal allergies in sensitive individuals.
Edibility: The berries are edible but often taste quite tart or bland compared to other blackberries.

How to identify it

Trailing, prickly stems
Compound leaves with three leaflets
Small white five petaled flowers
Bluish black fruit with bloom
Stems often have a glaucous coating

Height: 0.3 to 0.6m
Spread: 1 to 3m
Leaves: green, deciduous
Flowers: white, 2 to 3cm
Fruit: black, blue, Late summer to autumn

Problems to watch for

Rust · Fungal infection causing orange or brown spots on leaves.
Aphids · Small insects that suck sap from new growth.

By symptom

Plant problems by symptom

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Growing it

Propagation: cuttings, division, seed
When to plant: spring, autumn
Overwintering: The plant goes dormant in winter, so simply clear away dead debris in early spring before new growth begins.
In containers: Not well suited for containers due to its vigorous, trailing, and thorny nature.

Tip Layering

1. Bend a long, flexible stem down to the soil in late summer.
2. Bury the tip of the stem about 5 cm deep in the ground.
3. Keep the soil moist until roots form.
4. Sever the new plant from the parent in spring.

Plant in areas where you want to suppress weeds, as its dense growth habit acts as a living mulch.

Grows well with

Wild Strawberry · They share similar woodland edge habitat requirements.
Common Fern · They provide complementary textures in moist, shaded garden areas.

Similar species

Common Blackberry · It is a much larger, more upright relative with similar fruit.

Science

Family: Rosaceae
Genus: Rubus
Order: Rosales
Class: Magnoliopsida
Native range: Europe and parts of Western Asia.
Conservation: This species is common and not of conservation concern.

It naturally colonizes damp thickets, woodland edges, and stream banks where it forms dense, protective mats.

Value to wildlife: nectar source, provides cover for small mammals
Pollinators: bees, butterflies
Uses: wildlife habitat, ground cover, foraging

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 1/9
Soil reaction: 6/9
Light: 5/9
Temperature: 5/9
Moisture: 7/9
Nutrients: 5/9

Taxonomy resolved against GBIF.

Questions people ask

Is it invasive?: It can spread aggressively via rooting stem tips in ideal conditions.
Does it need a trellis?: It is a low growing, trailing plant and generally does not require support.

Where the name comes from

Rubus is the ancient Latin name for the blackberry, while caesius describes the glaucous, blueish appearance of the fruit.

Good to know

It is commonly known as the European dewberry.
The stems are often trailing rather than upright.
It thrives in damp, shady areas where other berries might struggle.

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This guide was generated with AI on October 19, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.