Red Currant
Ribes rubrum
Productive bush bearing translucent red berries in dangling clusters. Excellent for jelly, juicing, and fresh eating.
Overview
Companion Planting
Toxicity
Red currant fruits are edible and safe for humans, dogs, and cats; all parts of the plant are considered non-toxic.
Planting Tips
1 cm of water per mΒ² equals 10 liters. Use the Watering Calculator for exact amounts.
Care Tip: Prune annually in late winter by removing old wood (older than 3 years) and crossing branches to maintain an open, goblet-shaped bush for good air circulation.
Common Pests
Currant Aphid (Cryptomyzus ribis)
Symptoms: Leaves curl, blister, and develop reddish raised bumps on the upper surface; sticky honeydew on foliage.
Treatment: Spray with insecticidal soap or neem oil, targeting the undersides of leaves where aphids cluster.
Prevention: Encourage natural predators like ladybugs and lacewings; inspect plants in early spring and remove affected leaves promptly.
Currant Sawfly (Nematus ribesii)
Symptoms: Pale green caterpillar-like larvae rapidly defoliate bushes, stripping leaves from the center outward.
Treatment: Hand-pick larvae on sight or spray with pyrethrin-based insecticide if infestation is severe.
Prevention: Check undersides of lower leaves from mid-spring onward; cultivate soil around the base in winter to expose overwintering pupae.
Gooseberry Mite / Big Bud Mite (Cecidophyopsis ribis)
Symptoms: Buds become abnormally swollen and rounded in winter and fail to open in spring; weakened growth over time.
Treatment: Remove and destroy enlarged buds before they open; severely affected bushes should be replaced with certified mite-free stock.
Prevention: Plant resistant cultivars when available; inspect buds during dormancy and remove any that appear swollen.
Common Diseases
Powdery Mildew (Podosphaera mors-uvae)
Symptoms: White powdery coating on young leaves, shoot tips, and fruit; affected leaves may curl and growth is stunted.
Treatment: Apply a sulfur-based or potassium bicarbonate fungicide at first signs; remove and destroy severely infected shoots.
Prevention: Ensure good air circulation by proper pruning and spacing; avoid overhead watering and excess nitrogen fertilization.
Coral Spot (Nectria cinnabarina)
Symptoms: Small bright orange-pink raised pustules appear on dead or dying wood; dieback of affected branches.
Treatment: Cut back infected branches well below the visible infection into healthy wood; sterilize pruning tools between cuts.
Prevention: Remove dead wood promptly; avoid wounding stems and keep plants vigorous with balanced feeding.
Leaf Spot (Drepanopeziza ribis)
Symptoms: Dark brown or black spots on leaves leading to premature defoliation, reducing plant vigor and yield.
Treatment: Apply copper-based fungicide in spring as new growth emerges; rake up and destroy fallen infected leaves.
Prevention: Maintain good garden hygiene by clearing fallen leaves in autumn; ensure adequate spacing for air flow around bushes.
