Family Owned Since 1979
Cultivating Gardeners



Product Description:

Rubus armeniacus x ursinus An Oregon original! Marionberry is a pedigree blackberry released in 1956 and named after its home, Marion County. Affectionately referred to as the King of Blackberries, it boasts a bold, rich flavor that’s earthy, sweet and touched with tart. The very large, firm fruit are great for fresh eating and also make exceptional jam, wine, ice cream, and pie. In fact, Marionberry pie is the official pie of the great state of Oregon. Zones 4‒9.

Blackberry plants are 1 year old and ship late March in 3 ½ inch pots. Order early for best availability. Detailed planting information and growing instructions are included with each order and may be obtained below. Available only in the contiguous US.
  • Key Features:




  • Key Features:

Plant Spacing 3–4'
Plant height 5-6'
Hardiness Zone Listed per variety
Bearing Age 2–3 years
Ripening Time Summer
Pollinator Required No

Rubus spp. Cultivated for centuries, blackberries are prized for their deep purple, glossy fruit that's so sweet and tasty. Packed with a high level of antioxidants, bioflavonoids and Vitamin C. We think our gardeners will love the fruit and appreciate the plants' vigor, productivity and ease of cultivation.

Initial Instructions
After unpacking, allow the plant a few days to gradually acclimate to its full exposure. Plant your blackberry in an area with well-drained, not soggy soil that’s enriched with humus. Initially, apply ½ cup of Territorial’s Complete Fertilizer per plant mixed into the bottom of the planting hole, backfill around the plant and water well. Blackberries appreciate a minimum of ½ day of sun to full sun for best production.

In years to follow, apply ¼ pound of Territorial’s Complete Fertilizer per plant in the spring (before growth starts) and again in May. Maintain good weed control. If using mechanical weed control do not work soil very deep as blackberry roots are shallow.

Blackberries are generally vigorous growers and require support to hold up the plants. A trellis or fence at least 4-5 feet tall should provide adequate support. Our blackberries produces fruit on the 2nd year old canes. After fruiting, the cane will die, and you can prune it back to the ground. In spring, prune the canes to about 5 feet tall to encourage lateral branching and produce more fruit. Keep the soil moist for the first year to establish the plant.

Blackberries are self-fertile.

Pests & Diseases
Generally pest and disease resistant

Soil Type
Adaptable to a wide range of soil as long as it is well drained.

Light Requirements
Full sun to partial shade


Bloom Time
Late spring

Ripening Time

10-15 pounds per plant

Thanks for signing up for our weekly newsletter!