Fertilising guide
How to fertilise Daylily 'Siloam Double Classic' (Hemerocallis 'Siloam Double Classic')— schedule & NPK
Also called Double Classic daylily.
More about daylily 'siloam double classic'
About Daylily 'Siloam Double Classic'
Hemerocallis 'Siloam Double Classic' · also called Double Classic daylily · flowering
A beloved Siloam-series double-flowered daylily bearing large, peony-like pink blooms with a deeper rose eye. Hardy and clump-forming, it thrives in full sun with average moisture. Repeat-blooms in summer. TOXIC to cats — Hemerocallis species can cause acute kidney failure in felines even in small amounts.
Growth habit: Clump-forming herbaceous perennial
Watch for — Slug damage: Slugs feed on emerging foliage in spring; use iron phosphate pellets or place grit around the crown as a deterrent.
What fertiliser daylily 'siloam double classic' actually wants — and why
Daylily 'Siloam Double Classic' 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 'siloam double classic': 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 'siloam double classic', 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 'siloam double classic':
Apply a balanced slow-release granular fertiliser (e.g. 10-10-10) in early spring as new growth emerges. A second light feed after the first flush of blooms encourages repeat flowering; avoid high-nitrogen feeds that promote foliage over flowers. 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 'siloam double classic' 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 'siloam double classic'
Half strength is the safe default for daylily 'siloam double classic' — 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 'siloam double classic' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the daylily 'siloam double classic' watering schedule.
Signs you are over-feeding daylily 'siloam double classic'
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for daylily 'siloam double classic':
- 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 'siloam double classic'
- 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 'siloam double classic' care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Flush the pot of daylily 'siloam double classic' 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 'siloam double classic'
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 'siloam double classic' — frequently asked questions
What fertiliser does daylily 'siloam double classic' 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 'Siloam Double Classic' 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 'siloam double classic'?
Apply a balanced slow-release granular fertiliser (e.g. 10-10-10) in early spring as new growth emerges. A second light feed after the first flush of blooms encourages repeat flowering; avoid high-nitrogen feeds that promote foliage over flowers. Apply a balanced slow-release granular fertiliser (e.g. 10-10-10) in early spring as new growth emerges. A second light feed after the first flush of blooms encourages repeat flowering; avoid high-nitrogen feeds that promote foliage over flowers. 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 'siloam double classic'?
Half strength is the safe default for daylily 'siloam double classic' — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.
What does over-feeding daylily 'siloam double classic' 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 'siloam double classic' 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 'siloam double classic'?
Flush the pot of daylily 'siloam double classic' 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 'Siloam Double Classic' care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water daylily 'siloam double classic' — 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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