Fertilising guide
How to fertilise Daylily 'Catherine Woodbery' (Hemerocallis 'Catherine Woodbery')— schedule & NPK
Also called Catherine Woodbery daylily, lavender daylily, orchid daylily.
More about daylily 'catherine woodbery'
About Daylily 'Catherine Woodbery'
Hemerocallis 'Catherine Woodbery' · also called Catherine Woodbery daylily, lavender daylily · flowering
Hemerocallis 'Catherine Woodbery' is an award-winning daylily prized for its unusual soft lavender-pink blooms with a green throat, produced in mid-summer. It is lightly fragrant and exceptionally heat-tolerant. Like all daylilies, it is highly toxic to cats and potentially fatal if any part is ingested.
Growth habit: Clump-forming semi-evergreen to deciduous perennial with upright arching foliage
What fertiliser daylily 'catherine woodbery' actually wants — and why
Daylily 'Catherine Woodbery' 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 daylily 'catherine woodbery': 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 daylily 'catherine woodbery', 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 daylily 'catherine woodbery':
Apply a balanced granular fertiliser (10-10-10) in early spring. A mid-season liquid feed with a bloom formula in late May/early June supports the long flowering season. Excess nitrogen dulls the lavender colouring — keep nitrogen moderate. 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 daylily 'catherine woodbery' 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 daylily 'catherine woodbery'
Half strength is the safe default for daylily 'catherine woodbery' — 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 daylily 'catherine woodbery' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the daylily 'catherine woodbery' watering schedule.
Signs you are over-feeding daylily 'catherine woodbery'
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for daylily 'catherine woodbery':
- 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 daylily 'catherine woodbery'
- 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 daylily 'catherine woodbery' care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of daylily 'catherine woodbery' 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 daylily 'catherine woodbery'
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 daylily 'catherine woodbery' — frequently asked questions
What fertiliser does daylily 'catherine woodbery' 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. Daylily 'Catherine Woodbery' 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 daylily 'catherine woodbery'?
Apply a balanced granular fertiliser (10-10-10) in early spring. A mid-season liquid feed with a bloom formula in late May/early June supports the long flowering season. Excess nitrogen dulls the lavender colouring — keep nitrogen moderate. Apply a balanced granular fertiliser (10-10-10) in early spring. A mid-season liquid feed with a bloom formula in late May/early June supports the long flowering season. Excess nitrogen dulls the lavender colouring — keep nitrogen moderate. 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 daylily 'catherine woodbery'?
Half strength is the safe default for daylily 'catherine woodbery' — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding daylily 'catherine woodbery' 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 daylily 'catherine woodbery' 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 daylily 'catherine woodbery'?
Flush the pot of daylily 'catherine woodbery' 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
- Daylily 'Catherine Woodbery' care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water daylily 'catherine woodbery' — the watering schedule
- The houseplant fertiliser schedule — feeding through the year
- NPK ratio explained — what the three numbers on the bottle mean
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- How to fertilise madonna lily
- All 11687 fertilising guides in the Growli library