Fertilising guide
How to fertilise Anemone × hybrida 'Honorine Jobert' (Anemone × hybrida 'Honorine Jobert')— schedule & NPK
Also called Honorine Jobert Japanese anemone, white Japanese anemone.
More about anemone × hybrida 'honorine jobert'
About Anemone × hybrida 'Honorine Jobert'
Anemone × hybrida 'Honorine Jobert' · also called Honorine Jobert Japanese anemone, white Japanese anemone · flowering
An RHS award-winning Japanese anemone bearing pure-white single flowers with golden-yellow stamens on wiry 1.2 m stems from late summer into autumn. It thrives in part shade and moist, fertile soil, spreading by underground runners to form generous clumps. Reliable, long-flowering and a magnet for late-season bees, but slow to settle and resentful of disturbance once established.
Growth habit: Clump-forming herbaceous perennial that spreads by creeping underground rhizomes, producing a basal mound of dark vine-like leaves topped by tall, branched flowering stems. Can colonise steadily and become wide over several seasons.
Watch for — Flops in rich or shady sites: Over-fed or under-lit plants produce tall, weak stems that lean. Give adequate light, avoid nitrogen-heavy feeding and provide discreet support if needed.
What fertiliser anemone × hybrida 'honorine jobert' actually wants — and why
Anemone × hybrida 'Honorine Jobert' flowers best on poor soil — feed it and you get a lush leafy plant with very few blooms, the exact opposite of what you want.
Little or nothing. Rich, especially nitrogen-rich, soil pushes foliage at the expense of flowers in this plant — lean ground is the technique, not a deficiency.
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 anemone × hybrida 'honorine jobert': 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 anemone × hybrida 'honorine jobert', 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 anemone × hybrida 'honorine jobert':
Top-dress in early spring with well-rotted compost or a balanced general fertiliser; this is usually all it needs. Avoid high-nitrogen feeds, which encourage soft foliage at the expense of flowers. A light feed after the first flush is optional in poor soils. In practice: no routine feeding at all for anemone × hybrida 'honorine jobert' — at most a thin compost mulch for soil structure, never a flowering or nitrogen feed.
The dormant-season rule matters more than the exact interval: skip feeding entirely when anemone × hybrida 'honorine jobert' 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 anemone × hybrida 'honorine jobert'
None is the correct answer for anemone × hybrida 'honorine jobert'. The flower-versus-foliage trade-off is the whole point: hold back and you get the display.
Feeding always goes onto already-damp soil, never dry roots — water anemone × hybrida 'honorine jobert' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the anemone × hybrida 'honorine jobert' watering schedule.
Signs you are over-feeding anemone × hybrida 'honorine jobert'
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for anemone × hybrida 'honorine jobert':
- Abundant leafy growth and very few flowers (the classic over-rich symptom).
- Soft, floppy stems and a sprawling, leafy habit.
- Scorched edges and salt crust if it has been fed in a container.
Signs you are under-feeding anemone × hybrida 'honorine jobert'
- Effectively never an issue — these plants flower on poverty.
- Only on genuinely dead soil: weak, thin growth and few blooms.
- A short-lived plant in completely spent container compost.
If the symptoms point at watering, light or roots rather than nutrition, the full anemone × hybrida 'honorine jobert' care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
If anemone × hybrida 'honorine jobert' has accidentally been fed and is all leaf, a plain-water flush plus a move to leaner soil resets it; otherwise no flushing is needed because you are not feeding it.
Organic vs synthetic feeds for anemone × hybrida 'honorine jobert'
Organic options
A thin compost mulch for soil structure is the absolute most; mostly, give it nothing. UK/US: leave it lean — no manure, no liquid feed. Poor soil is the active ingredient here.
Synthetic / liquid feeds
None. Synthetic feeds, particularly anything with appreciable nitrogen, directly suppress flowering in anemone × hybrida 'honorine jobert'.
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 anemone × hybrida 'honorine jobert' — frequently asked questions
What fertiliser does anemone × hybrida 'honorine jobert' need?
Little or nothing. Rich, especially nitrogen-rich, soil pushes foliage at the expense of flowers in this plant — lean ground is the technique, not a deficiency. Anemone × hybrida 'Honorine Jobert' flowers best on poor soil — feed it and you get a lush leafy plant with very few blooms, the exact opposite of what you want.
How often should I feed anemone × hybrida 'honorine jobert'?
Top-dress in early spring with well-rotted compost or a balanced general fertiliser; this is usually all it needs. Avoid high-nitrogen feeds, which encourage soft foliage at the expense of flowers. A light feed after the first flush is optional in poor soils. Top-dress in early spring with well-rotted compost or a balanced general fertiliser; this is usually all it needs. Avoid high-nitrogen feeds, which encourage soft foliage at the expense of flowers. A light feed after the first flush is optional in poor soils. In practice: no routine feeding at all for anemone × hybrida 'honorine jobert' — at most a thin compost mulch for soil structure, never a flowering or nitrogen feed.
What strength of feed for anemone × hybrida 'honorine jobert'?
None is the correct answer for anemone × hybrida 'honorine jobert'. The flower-versus-foliage trade-off is the whole point: hold back and you get the display.
What does over-feeding anemone × hybrida 'honorine jobert' look like?
Abundant leafy growth and very few flowers (the classic over-rich symptom). Soft, floppy stems and a sprawling, leafy habit. Scorched edges and salt crust if it has been fed in a container. Feeding anemone × hybrida 'honorine jobert' at all — especially "to help it flower" — is the defining mistake. Rich soil gives you a big green plant and almost no blooms; restraint is what produces the flowers.
Should I flush the soil of anemone × hybrida 'honorine jobert'?
If anemone × hybrida 'honorine jobert' has accidentally been fed and is all leaf, a plain-water flush plus a move to leaner soil resets it; otherwise no flushing is needed because you are not feeding it.
Keep reading
- Anemone × hybrida 'Honorine Jobert' care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water anemone × hybrida 'honorine jobert' — 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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- All 5561 fertilising guides in the Growli library