Fertilising guide
How to fertilise Coral Lily (Lilium pumilum)— schedule & NPK
Also called Coral Lily, Dwarf Turk's Cap Lily, Siberian Lily.
More about coral lily
About Coral Lily
Lilium pumilum · also called Coral Lily, Dwarf Turk's Cap Lily · flowering
Coral Lily is a graceful, compact species from Siberia, Mongolia, and northern China, bearing up to 30 brilliant scarlet to coral-red, pendant turk's-cap flowers on slender stems in early summer. One of the earliest lilies to bloom, it is short-lived (3–5 years) but self-seeds freely. Ideal for rock gardens and front-of-border. Severely toxic to cats.
Growth habit: Small, upright perennial bulb with slender, wiry stems bearing narrow grass-like leaves and a loose raceme of pendant, strongly reflexed turk's-cap flowers with exserted stamens.
What fertiliser coral lily actually wants — and why
Coral Lily 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 coral lily: 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 coral lily, 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 coral lily:
Light feeding only — once per season with a low-nitrogen, high-potassium granular feed in early spring. Excessive fertility shortens the already brief lifespan of individual bulbs. Allow seedlings to naturalise around the parent plant for continuity. 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 coral lily 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 coral lily
Half strength is the safe default for coral lily — 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 coral lily first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the coral lily watering schedule.
Signs you are over-feeding coral lily
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for coral lily:
- 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 coral lily
- 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 coral lily care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of coral lily 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 coral lily
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 coral lily — frequently asked questions
What fertiliser does coral lily 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. Coral Lily 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 coral lily?
Light feeding only — once per season with a low-nitrogen, high-potassium granular feed in early spring. Excessive fertility shortens the already brief lifespan of individual bulbs. Allow seedlings to naturalise around the parent plant for continuity. Light feeding only — once per season with a low-nitrogen, high-potassium granular feed in early spring. Excessive fertility shortens the already brief lifespan of individual bulbs. Allow seedlings to naturalise around the parent plant for continuity. 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 coral lily?
Half strength is the safe default for coral lily — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding coral lily 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 coral lily 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 coral lily?
Flush the pot of coral lily 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
- Coral Lily care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water coral lily — 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 nymphaea 'chromatella'
- How to fertilise nymphaea 'james brydon'
- How to fertilise nymphaea 'escarboucle'
- All 6887 fertilising guides in the Growli library