Botanical profile

Rubus fruticosus 'Prime-Ark'

Latin name
Rubus fruticosus 'Prime-Ark'
Common name
Everbearing mulberry 'Prime-Ark'
Type
Fruit shrub
Family
Rosaceae

Rubus fruticosus 'Prime-Ark' is a primocane-fruiting blackberry prized for its ability to produce fruit on current year's canes, offering a prolonged and abundant harvest. This upright, bushy fruit shrub develops vigorous canes bearing large, shiny black fruits that are firm, juicy, and sweet. Fruiting begins in summer and can continue until early autumn, extending the berry season in the garden. Ideal for fresh consumption, jams, and desserts, it stands out for its productivity and early ripening. Its dense green foliage attracts pollinators and is perfect for rows, fruit hedges, or trellises. Rubus fruticosus 'Prime-Ark' combines high yield, uniqueness, and strong performance in temperate climates.

Care guide

Growing conditions

Light, soil, water and hardiness

Hardiness zone
Zone 5
Exposure
Sun
Watering
Regular, fresh, well-drained soil
Fertilization
Compost or fertilizer for berries in spring
Soil type
Rich, well-drained, slightly acidic
Minimum temperature
-20 °C
Plant appearance

Blooming, foliage and shape

Blooming period
Spring
Flower color
White
Fruiting
Large, shiny black fruits, firm, juicy and sweet
Foliage color
Green
Foliage type
Obsolete
Shape
Bushy, upright
Garden structure

Size and growth

Height
6 ft (1.8 m)
Width
4.9 ft (1.5 m)
Growth rate
Fast
Vegetable garden and yield

Companion planting, spacing and harvest

Fruit tree type
Ever-bearing mulberry
Pet friendly
Safe for pets

Pets

Pollinators
Attracts or supports pollinating insects

Pollinators

Butterflies
Plants that attract butterflies

Butterflies

The availability of our plants varies depending on arrivals, seasons, nursery production and supplier availability. Some varieties may be offered for a limited time only, depending on their natural cycle or current stock. These plant profiles are designed to guide and inspire you when choosing plants for the garden, landscaping projects, containers or long-lasting outdoor arrangements.