Fertilising guide
How to fertilise One-flowered Clintonia (Clintonia uniflora)— schedule & NPK
Also called One-flowered Clintonia, Queen's Cup, Bride's Bonnet, Bead Lily.
More about one-flowered clintonia
About One-flowered Clintonia
Clintonia uniflora · also called One-flowered Clintonia, Queen's Cup · flowering
A delicate western North American woodland perennial bearing solitary white flowers above a pair of broad glossy leaves in late spring, followed by a single cobalt-blue berry. Native to cool, moist montane conifer forests from Alaska to California. Best in deep shade with acidic, humus-rich soil and cool summer temperatures.
Growth habit: Low-growing, slowly spreading rhizomatous perennial forming loose patches
What fertiliser one-flowered clintonia actually wants — and why
One-flowered Clintonia 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 one-flowered clintonia: 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 one-flowered clintonia, 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 one-flowered clintonia:
Annual top-dressing with leaf mold in autumn is usually sufficient. A light spring application of acidic slow-release fertilizer can support plants in non-native garden soils. 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 one-flowered clintonia 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 one-flowered clintonia
Half strength is the safe default for one-flowered clintonia — 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 one-flowered clintonia first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the one-flowered clintonia watering schedule.
Signs you are over-feeding one-flowered clintonia
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for one-flowered clintonia:
- 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 one-flowered clintonia
- 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 one-flowered clintonia care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of one-flowered clintonia 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 one-flowered clintonia
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 one-flowered clintonia — frequently asked questions
What fertiliser does one-flowered clintonia 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. One-flowered Clintonia 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 one-flowered clintonia?
Annual top-dressing with leaf mold in autumn is usually sufficient. A light spring application of acidic slow-release fertilizer can support plants in non-native garden soils. Annual top-dressing with leaf mold in autumn is usually sufficient. A light spring application of acidic slow-release fertilizer can support plants in non-native garden soils. 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 one-flowered clintonia?
Half strength is the safe default for one-flowered clintonia — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding one-flowered clintonia 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 one-flowered clintonia 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 one-flowered clintonia?
Flush the pot of one-flowered clintonia 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
- One-flowered Clintonia care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water one-flowered clintonia — 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 hairy coreopsis
- How to fertilise greater coreopsis
- How to fertilise pink coreopsis
- All 8452 fertilising guides in the Growli library