Science · Plants, Natives & Crops
Red Currant
Red currants are hardy, self-fruitful shrubs grown mainly for tart berries used in preserves. They tolerate partial shade but benefit from good air circulation and adequate moisture.
Ribes rubrum · Deciduous perennial berry shrub
Profile
- Pollination
- A single plant can set fruit without another cultivar.
- Site
- A sunny site with good air movement favors production.
- Soil
- Cool, moist, well-drained, fertile soil is preferred.
- Bearing wood
- Red currants bear much of their crop on spurs on two- and three-year-old wood.
- Restrictions
- Check local rules concerning Ribes and white pine blister rust.
Water & soil context
- Moisture (VWC)
- Keep the root zone adequately moist while preserving drainage.
- Salinity tolerance
- A salt-sensitivity class or threshold is not documented in the cited pages.
- Drought tolerance
- Dry soil can limit growth, yield, and berry size.
Illustrative monitoring-depth band
3–8 in
Editorial placement example, not a validated optimum or total rooting depth. Confirm the site's root distribution and soil horizons; multiple depths may be needed.
Supplement rainfall during fruit development and give extra attention to plantings on sandy soils.
Problems to watch
- Aphids
- Anthracnose leaf spot
- Powdery mildew
- Currant borer
- Blossom frost injury
- White pine blister rust
Stress signs
- Downward-curled, blistered young leaves
- Small brown leaf spots
- Yellowing and premature leaf drop
- Powdery growth on affected tissues
Where you'll find it
- Jelly
- Jam
- Freezing
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All Science profilesPublished botanical and soil references are distinct from GroundWorx product guidance. Moisture thresholds and monitoring depths require site calibration; sources do not establish product performance or diagnose stress.