How to Grow Blackcurrants
Ribes nigrum
Blackcurrants prefer full sun or light shade, moist, fertile soil, and shelter from cold winds. Plant 10 cm deeper than the previous soil mark to encourage renewal shoots, and mulch generously. They fruit mainly on one-year-old wood—winter prune by removing a portion of oldest stems at the base to stimulate new growth. Water in dry spells from flowering to fruit swell. Harvest whole strings when fruits are fully coloured and juicy. Many modern varieties are mildew-resistant and heavy cropping.
Yearly Lifecycle
Care Essentials
Early spring with a high-potash fertiliser. Mulch generously with well-rotted manure.
Watch For
- Big bud mite
- Reversion virus
- Gall midge
- Sawfly
- Gooseberry mildew
Companions
Comfrey, Tansy, Marigolds
Track your Blackcurrants care schedule — pruning, feeding, and seasonal tasks
Start planning freeCare Requirements
☀️ Light
Full sun for best crops; avoid frost pockets
Full sun or light shade. Full sun produces the heaviest crops and best-flavoured fruit. Avoid frost pockets as blossom is vulnerable to late spring frosts.
🌿 Spacing
1.5m apart; plant deeply for renewal shoots
Space bushes 1.5m apart with 1.8m between rows. Plant 10cm deeper than the nursery mark to encourage strong basal renewal shoots.
💧 Watering
Consistent moisture flowering to harvest is key
Consistent moisture from flowering to harvest is critical for berry size and juiciness. Water deeply during dry spells, especially during fruit swell.
🌱 Fertilizing
High-potash spring feed; generous manure mulch
Apply a high-potash fertiliser in early spring. Mulch generously with well-rotted manure or compost. Blackcurrants are hungry plants that respond well to rich feeding.
✂️ Pruning
Remove oldest third of stems each winter
Prune in winter. Remove about a third of the oldest, darkest stems at the base each year to encourage vigorous new growth. Blackcurrants fruit mainly on one-year-old wood.
🍎 Harvesting
Pick whole dark trusses; great for jam and freezing
Pick whole trusses when all berries on the string are fully dark and soft. Easier to strip berries from the stalk after picking. Excellent for freezing, jam, and juice.
🍂 Mulching
Annual organic mulch in spring; manure is ideal
Renew an organic mulch annually in spring to conserve moisture and suppress weeds around the shallow root system. Well-rotted manure is ideal.
Growing Tips
Plant deeply for stools
Set bushes 8–10 cm deeper than pot level and cut back to a low framework to promote a multi-stemmed stool.
Mulch = moisture
Renew an organic mulch annually to conserve moisture and suppress weeds around shallow roots.
Focus water at fruit set
Consistent moisture from flowering to harvest is key for size and juiciness.
Renewal pruning
Each winter, remove up to a third of the oldest, darkest stems at the base to keep young fruiting wood coming.
Pick in trusses
Harvest by the strig when berries are fully black and soft—great for freezing and jam.
Pests & Diseases
Pest Big Bud Mite
Identification: Buds become abnormally swollen and rounded in winter and spring instead of the normal pointed shape; affected buds fail to open or produce weak, distorted growth
- Pick off and destroy swollen buds in winter before they open in spring
- If infestation is severe, dig up and destroy the entire bush and replant with certified stock
- No effective chemical treatments are available to home gardeners
Pest Blackcurrant Gall Midge
Identification: Young leaves at shoot tips become crumpled, twisted, and fail to expand properly; tiny orange larvae may be visible inside the distorted leaves
- Pick off and destroy affected shoot tips before larvae drop to the soil to pupate
- Cultivate soil lightly around bushes in winter to expose overwintering pupae to birds and frost
- Spray with a contact insecticide containing deltamethrin at the first sign of damage
Pest Blackcurrant Sawfly
Identification: Pale green caterpillar-like larvae with black spots strip leaves from the centre of the bush outward; damage can be sudden and severe
- Inspect bushes regularly from late April and pick off larvae by hand
- Encourage ground beetles and other predators
- Spray with a contact insecticide containing pyrethrins when larvae are first seen
Disease American Gooseberry Mildew Podosphaera mors-uvae
Symptoms: White powdery coating on young leaves, shoot tips, and developing fruit; affected growth becomes stunted and distorted. Coating turns brown and felt-like later in the season
Treatment: Prune out affected shoot tips. Improve air circulation by thinning crowded branches
Prevention: Prune to maintain an open bush. Avoid excessive nitrogen feeding. Choose resistant varieties like 'Ben Hope' or 'Titania'
Disease Reversion Virus
Symptoms: Leaves become smaller with fewer serrations; flowers change from grey-pink to bright magenta. Yields decline progressively over several years
Treatment: There is no cure. Dig up and destroy affected bushes. Do not take cuttings from infected plants
Prevention: Control big bud mite which transmits the virus. Plant only certified virus-free stock. Inspect buds annually and remove any that are swollen
Disease Grey Mould (Botrytis) Botrytis cinerea
Symptoms: Grey fuzzy mould on fruit, especially in wet weather; berries rot on the bush. Can also affect flowers and young shoots
Treatment: Remove and destroy affected fruit and plant material. Improve air circulation
Prevention: Prune to maintain an open bush. Avoid overhead watering. Pick fruit promptly when ripe
Popular Varieties
Ben Lomond
A Scottish variety bred for frost tolerance and high yields. Compact bushes produce berries with high acidity perfect for jams and juices.
Titania
A robust Swedish variety immune to white pine blister rust and resistant to mildew. Grows vigorously and produces large berries that ripen uniformly.
Early
Late
Spacing & Planting
| Plant spacing | 150 cm |
| Row spacing | 180 cm |
| Mature height | 150 cm |
| Mature spread | 120 cm |
Grown as bushes; prune to maintain an open centre.
Log Blackcurrants in your garden — track growth, care, and harvests year after year
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