Fertilising guide
How to fertilise Ivy-Leaved Cyclamen (Cyclamen hederifolium)— schedule & NPK
Also called Ivy-leaved cyclamen, Neapolitan cyclamen, Autumn cyclamen, Baby cyclamen.
More about ivy-leaved cyclamen
About Ivy-Leaved Cyclamen
Cyclamen hederifolium · also called Ivy-leaved cyclamen, Neapolitan cyclamen · flowering
Cyclamen hederifolium is a robust tuberous perennial native to southern Europe and Turkey, widely naturalised across the UK, and the easiest and most vigorous garden cyclamen, producing masses of reflexed pink or white flowers from August to November before its beautifully patterned, ivy-shaped leaves emerge to decorate the ground through winter. Exceptionally long-lived — individual tubers can exceed 100 years and reach 30 cm across — it thrives in dry shade under trees where little else will grow. Plant tubers shallowly in the autumn and leave them completely undisturbed. All parts are highly toxic to cats and dogs due to saponins.
Growth habit: Tuberous, summer-dormant perennial; flowers appear before or with the first leaves in August–October, patterned foliage persists through winter, and plants go dormant by June.
What fertiliser ivy-leaved cyclamen actually wants — and why
Ivy-Leaved Cyclamen is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.
A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula.
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 ivy-leaved cyclamen: 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 ivy-leaved cyclamen, 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 ivy-leaved cyclamen:
Topdress established clumps with a thin layer of leaf mould or a light application of slow-release balanced fertiliser in early autumn when new leaves are emerging; do not feed during summer dormancy. Treat that as sparingly through the growing season between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.
The dormant-season rule matters more than the exact interval: skip feeding entirely when ivy-leaved cyclamen 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 ivy-leaved cyclamen
Half strength is the safe default for ivy-leaved cyclamen — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
Feeding always goes onto already-damp soil, never dry roots — water ivy-leaved cyclamen first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the ivy-leaved cyclamen watering schedule.
Signs you are over-feeding ivy-leaved cyclamen
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for ivy-leaved cyclamen:
- Brown, crispy leaf tips and edges with no sign of underwatering.
- A white, crusty salt deposit on the soil surface or pot rim.
- Weak, pale, stretched new growth that flops.
- Lower leaves yellow and drop while the soil is correctly watered.
Signs you are under-feeding ivy-leaved cyclamen
- Uniformly pale or yellow-green leaves, oldest first.
- Noticeably small new leaves and stalled growth in good light and season.
- A generally tired, lacklustre look despite correct watering and light.
If the symptoms point at watering, light or roots rather than nutrition, the full ivy-leaved cyclamen care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of ivy-leaved cyclamen with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.
Organic vs synthetic feeds for ivy-leaved cyclamen
Organic options
A diluted seaweed or worm-casting feed, or fish emulsion if you can tolerate the smell indoors. UK: Westland or Baby Bio Organic, dilute seaweed; US: Espoma Indoor! or Neptune's Harvest fish & seaweed. Slow, gentle and hard to overdo.
Synthetic / liquid feeds
A general-purpose houseplant liquid at half strength — UK: Baby Bio, Westland Houseplant Feed or Phostrogen; US: Miracle-Gro Indoor Plant Food or Schultz. Convenient and fast-acting; the only risk is overdoing it.
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 ivy-leaved cyclamen — frequently asked questions
What fertiliser does ivy-leaved cyclamen need?
A balanced general houseplant feed (roughly even N-P-K) is exactly right — it is grown for foliage, so steady, moderate nitrogen for healthy leaves is the goal, not a bloom or root formula. Ivy-Leaved Cyclamen is an easy, light foliage feeder — a half-strength balanced liquid feed through the growing months keeps it green without forcing weak, sappy growth.
How often should I feed ivy-leaved cyclamen?
Topdress established clumps with a thin layer of leaf mould or a light application of slow-release balanced fertiliser in early autumn when new leaves are emerging; do not feed during summer dormancy. Topdress established clumps with a thin layer of leaf mould or a light application of slow-release balanced fertiliser in early autumn when new leaves are emerging; do not feed during summer dormancy. Treat that as sparingly through the growing season between spring through early autumn (roughly March to September); ease off in autumn and stop entirely in the low light of winter.
What strength of feed for ivy-leaved cyclamen?
Half strength is the safe default for ivy-leaved cyclamen — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding ivy-leaved cyclamen look like?
Brown, crispy leaf tips and edges with no sign of underwatering. A white, crusty salt deposit on the soil surface or pot rim. Weak, pale, stretched new growth that flops. Lower leaves yellow and drop while the soil is correctly watered. Feeding ivy-leaved cyclamen year-round on a fixed schedule, including dark winter months, is the most common mistake — it cannot use the nutrients in low light and the surplus simply burns the roots and crusts the soil.
Should I flush the soil of ivy-leaved cyclamen?
Flush the pot of ivy-leaved cyclamen with plain water until it runs freely from the base every couple of months in the feeding season — it washes out the fertiliser salts that cause brown tips.
Keep reading
- Ivy-Leaved Cyclamen care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water ivy-leaved cyclamen — 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 coelogyne flaccida
- How to fertilise coelogyne massangeana
- How to fertilise lycaste aromatica
- All 10153 fertilising guides in the Growli library