Red Raspberry |
General |
Common Name | Red Raspberry |
Latin Name | Rubus idaeus |
Category | Fruits |
Family | Brambles |
Variety | See Cornell Guide to Growing Fruit at Home |
Visual Traits |
Flower | white, July-September |
Fruit | aggregates of drupelets; red, white, or yellow |
Height | 2-9 ft |
Cultivation |
Cultivation and Mulching | cultivate 3' wide strip, no deeper than 2"; do not mulch |
Field preparation and planting | prepare soil one season prior to planting; clear wild brambles; do not plant in location that may host verticillum wilt |
Field spacing / planting depth | 30" within rows, 9-10' between rows / 1" deeper than grown in nursery |
Harvest | every 2-3days |
Pollination | self-incompatible |
Propagation method | root suckers, bare root, tissue culture |
Pruning | mid-march, leave 3-4 canes / linear foot of row; prune off winter-damaged tips and healthy tips back to 1' beyond trellis |
Retail Source | See www.hort.cornell.edu/nursery |
Seed treatment and storage | for spring planting, scarify, warm stratification 90days at 68-86°F, followed by cold stratification for 90days at 36-41°F |
Softwood cuttings | summer and/or fall; berries do not last > 2-3 days on plant |
Sowing seed | late summer, fall; direct seed to disturbed sites |
Training / Trellising | T-shaped or V-shaped trellis |
Transplant | rooted canes early spring; tissue culture plantlets after last frost |
Watering guidelines | water liberally at planting; require irrigation throughout growing season; early morning so that plants may dry during day; plant in raised beds if threat of water accumulation |
Critters |
Insect and invertebrate pests | raspberry cane borers; raspberry fruitworms; spider mites; blackberry leafminers; raspberry sawflies; japanese beetles |
Pathogens | phytophthora root rot, mosaic virus, ringspot virus, verticillium wilt; spur blight, cane blight, anthracnose; botrytis fruit rot; orange rust |
Wildlife Pests | rodents |
Soils |
Fertility / quality | well drained |
Moisture and drainage | excessive water promotes phytophthora root rot or frost heave; drought intolerant |
pH | 5.5-6.5 |
Soils and topography | wet or dry woods, open and rocky slopes |
Texture | sandy loam |
Growth Pattern |
Fruit bearing age / full crop load | 1-2y / 3y (replant after 10y) |
Growth rate | fast |
Longevity | short |
Habitat and Climate |
Fire tolerance | very tolerant |
Frost-free days (FFD) | 128 |
Hardiness Zone | Zones 5-7 |
Native Range | temperate zones |
Wind / ice / frost susceptibility | susceptible to frost heave in wet soils |
Light |
Light recommendation | full sun |
Shade tolerance | intolerant (R. ideaus ssp idaeus) to tolerant (Rubus idaeus ssp.strigosus) |
Vegetation Associations |
Competitive ability | pioneer species; declines as canopy closes, seeds persist to 60y and may thrive in forest openings |
Special Notes |
Note 1 | hydridizes readily with other Rubus sp. |