Fertilising guide
How to fertilise Cambridge Favourite Strawberry (Fragaria × ananassa 'Cambridge Favourite')— schedule & NPK
Also called Cambridge Favourite strawberry.
More about cambridge favourite strawberry
About Cambridge Favourite Strawberry
Fragaria × ananassa 'Cambridge Favourite' · also called Cambridge Favourite strawberry · edible
'Cambridge Favourite' is a long-trusted British summer-fruiting strawberry, reliable and disease-resistant, producing medium-sized, sweet-but-mild orange-red berries in midsummer. Bred in the 1950s, it crops heavily, tolerates a range of conditions and is forgiving for beginners. As a June-bearer it fruits once a season and propagates freely from runners.
Growth habit: Low, clump-forming herbaceous perennial spreading by runners (stolons) that root to form new plants; June-bearing, fruiting in a single summer flush.
What fertiliser cambridge favourite strawberry actually wants — and why
Cambridge Favourite Strawberry is grown entirely for its leaves, so nitrogen is the priority — steady, nitrogen-leaning feeding keeps it growing fast, tender and unbolted.
A nitrogen-leaning feed (higher first number) or compost-rich soil — nitrogen drives the fast, tender leafy growth this crop is grown for. Phosphorus and potassium matter far less here than for fruiting crops.
For the language behind the three numbers on the bottle — what nitrogen, phosphorus and potassium each do — see the NPK ratio explained entry. The short version for cambridge favourite strawberry: match the feed to the job the plant is doing right now, not to a generic “plant food” on the shelf.
How often to feed cambridge favourite strawberry, and which months
Feeding only earns its keep while the plant is in active growth and can use the nutrients — pour feed into a dormant or low-light plant and it simply builds up as root-burning salt. For cambridge favourite strawberry:
Apply a high-potash fertiliser such as tomato feed every two weeks from flowering until the end of harvest to boost fruit size and sweetness. Avoid high-nitrogen feeds, which produce lush leaves at the expense of fruit. Mulch with compost after fruiting. In practice: a balanced or compost-rich start, then a nitrogen side-dress or liquid feed every 3-4 weeks through the cropping period in the main season (spring through early autumn).
The dormant-season rule matters more than the exact interval: skip feeding entirely when cambridge favourite strawberry is resting. For the wider context on indoor feeding rhythms across the seasons, the houseplant fertiliser schedule walks through the year month by month.
What strength to mix for cambridge favourite strawberry
Use the vegetable-feed label rate for cambridge favourite strawberry. Steady availability matters more than a strong dose — a check in growth makes leaves tough and can trigger bolting.
Feeding always goes onto already-damp soil, never dry roots — water cambridge favourite strawberry first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the cambridge favourite strawberry watering schedule.
Signs you are over-feeding cambridge favourite strawberry
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for cambridge favourite strawberry:
- Very soft, floppy, dark-green growth that attracts aphids.
- Excess leafy growth at the expense of hearts/heads in cabbage and the like.
- Salt crust and scorched leaf edges in containers; nitrate-heavy leaves.
Signs you are under-feeding cambridge favourite strawberry
- Pale, yellow-green leaves, oldest first, and slow growth.
- Small, tough, bitter leaves and premature bolting.
- Weak, stunted heads in cabbage, broccoli and cauliflower.
If the symptoms point at watering, light or roots rather than nutrition, the full cambridge favourite strawberry care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
For container-grown cambridge favourite strawberry, water until it drains freely each time and flush pots monthly with plain water to stop nitrogen salts accumulating; in the ground, good compost levels naturally buffer this.
Organic vs synthetic feeds for cambridge favourite strawberry
Organic options
Well-rotted manure or compost dug in, plus nitrogen-rich liquid feeds like diluted chicken-manure pellets or nettle feed. UK: pelleted chicken manure or Westland; US: Espoma Garden-tone or blood meal. Steady and soil-building.
Synthetic / liquid feeds
A balanced feed at planting then a high-nitrogen liquid or granular side-dress — UK: Growmore then a nitrogen feed or Phostrogen; US: a 10-10-10 then a high-N (e.g. 21-0-0) side-dress or Miracle-Gro.
Brand names are examples, not endorsements, and UK and US ranges differ — check the label’s own NPK and dilution rate, since formulations change.
Fertilising cambridge favourite strawberry — frequently asked questions
What fertiliser does cambridge favourite strawberry need?
A nitrogen-leaning feed (higher first number) or compost-rich soil — nitrogen drives the fast, tender leafy growth this crop is grown for. Phosphorus and potassium matter far less here than for fruiting crops. Cambridge Favourite Strawberry is grown entirely for its leaves, so nitrogen is the priority — steady, nitrogen-leaning feeding keeps it growing fast, tender and unbolted.
How often should I feed cambridge favourite strawberry?
Apply a high-potash fertiliser such as tomato feed every two weeks from flowering until the end of harvest to boost fruit size and sweetness. Avoid high-nitrogen feeds, which produce lush leaves at the expense of fruit. Mulch with compost after fruiting. Apply a high-potash fertiliser such as tomato feed every two weeks from flowering until the end of harvest to boost fruit size and sweetness. Avoid high-nitrogen feeds, which produce lush leaves at the expense of fruit. Mulch with compost after fruiting. In practice: a balanced or compost-rich start, then a nitrogen side-dress or liquid feed every 3-4 weeks through the cropping period in the main season (spring through early autumn).
What strength of feed for cambridge favourite strawberry?
Use the vegetable-feed label rate for cambridge favourite strawberry. Steady availability matters more than a strong dose — a check in growth makes leaves tough and can trigger bolting.
What does over-feeding cambridge favourite strawberry look like?
Very soft, floppy, dark-green growth that attracts aphids. Excess leafy growth at the expense of hearts/heads in cabbage and the like. Salt crust and scorched leaf edges in containers; nitrate-heavy leaves. Letting cambridge favourite strawberry run short of nitrogen mid-crop is the main mistake — growth checks, leaves toughen and brassicas/leafy greens bolt or turn bitter. Keep nitrogen steadily available.
Should I flush the soil of cambridge favourite strawberry?
For container-grown cambridge favourite strawberry, water until it drains freely each time and flush pots monthly with plain water to stop nitrogen salts accumulating; in the ground, good compost levels naturally buffer this.
Keep reading
- Cambridge Favourite Strawberry care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water cambridge favourite strawberry — the watering schedule
- The houseplant fertiliser schedule — feeding through the year
- NPK ratio explained — what the three numbers on the bottle mean
- How to fertilise tomato
- How to fertilise pepper
- How to fertilise cucumber
- All 3899 fertilising guides in the Growli library