Fertilising guide

How to fertilise Anemone coronaria 'Hollandia' (Anemone coronaria 'Hollandia')— schedule & NPK

Also called Hollandia anemone, red poppy anemone, scarlet anemone.

More about anemone coronaria 'hollandia'

About Anemone coronaria 'Hollandia'

Anemone coronaria 'Hollandia' · also called Hollandia anemone, red poppy anemone · flowering

Anemone coronaria 'Hollandia' is a tuberous poppy anemone bearing single, scarlet-red flowers with a black central boss in spring. Grown from soaked corms planted in autumn (mild zones) or early spring, it suits borders, cutting gardens and containers. It needs full sun, sharply drained soil, and goes dormant after flowering once foliage yellows.

Growth habit: Low, clump-forming herbaceous perennial growing from a knobbly tuber, with finely divided ferny basal foliage and solitary cup-shaped flowers on wiry stems; summer-dormant after seeding.

What fertiliser anemone coronaria 'hollandia' actually wants — and why

Anemone coronaria 'Hollandia' is a heavy-blooming flower with a big appetite — a regular high-potash feed through the season is what drives a long, dense display.

A high-potassium ("high-potash") flowering feed — tomato-style or a dedicated bloom/rose feed. Potassium powers flowering; a high-nitrogen feed gives you a leafy plant with disappointing bloom.

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 coronaria 'hollandia': 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 coronaria 'hollandia', 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 coronaria 'hollandia':

Fork in balanced general fertiliser or compost at planting; feed lightly with a high-potash (tomato-type) liquid feed every 2-3 weeks once buds appear to sustain blooms. Stop feeding as foliage dies back. For a hungry bloomer that means feeding regularly — every 2-3 weeks — right through flowering across the main season (spring through early autumn), tapering as blooming ends.

The dormant-season rule matters more than the exact interval: skip feeding entirely when anemone coronaria 'hollandia' 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 coronaria 'hollandia'

Follow the flowering-feed label rate for anemone coronaria 'hollandia', or half strength if feeding very frequently. These plants genuinely use the nutrients — under-feeding shows up fast as a thin display.

Feeding always goes onto already-damp soil, never dry roots — water anemone coronaria 'hollandia' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the anemone coronaria 'hollandia' watering schedule.

Signs you are over-feeding anemone coronaria 'hollandia'

Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for anemone coronaria 'hollandia':

Lots of lush leaves but few flowers (too much nitrogen).
Scorched leaf edges and salt crust from too-strong or too-frequent feeds.
Soft, sappy growth prone to aphids and mildew.

Signs you are under-feeding anemone coronaria 'hollandia'

Sparse, small, short-lived flowers and pale foliage.
A tired plant that stops blooming early in the season.
Weak growth and poor repeat-flowering after the first flush.

If the symptoms point at watering, light or roots rather than nutrition, the full anemone coronaria 'hollandia' care brief covers soil, humidity and the common problems for this species.

Flushing and leaching the salts

Container-grown anemone coronaria 'hollandia' accumulates feed salts fast with frequent feeding — water until it drains each time and flush pots with plain water every few weeks to prevent scorch.

Organic vs synthetic feeds for anemone coronaria 'hollandia'

Organic options

A liquid comfrey or seaweed feed (naturally potassium-rich) plus compost or well-rotted manure as a mulch. UK: comfrey feed, organic Tomorite, or rose feed; US: Espoma Rose-tone or Neptune's Harvest. Feeds and improves soil.

Synthetic / liquid feeds

A high-potash flowering feed on a regular cadence — UK: Tomorite (Levington), Phostrogen or a specialist rose feed; US: Miracle-Gro Bloom Booster or a rose food. Fast, reliable bloom response.

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 coronaria 'hollandia' — frequently asked questions

What fertiliser does anemone coronaria 'hollandia' need?

A high-potassium ("high-potash") flowering feed — tomato-style or a dedicated bloom/rose feed. Potassium powers flowering; a high-nitrogen feed gives you a leafy plant with disappointing bloom. Anemone coronaria 'Hollandia' is a heavy-blooming flower with a big appetite — a regular high-potash feed through the season is what drives a long, dense display.

How often should I feed anemone coronaria 'hollandia'?

Fork in balanced general fertiliser or compost at planting; feed lightly with a high-potash (tomato-type) liquid feed every 2-3 weeks once buds appear to sustain blooms. Stop feeding as foliage dies back. Fork in balanced general fertiliser or compost at planting; feed lightly with a high-potash (tomato-type) liquid feed every 2-3 weeks once buds appear to sustain blooms. Stop feeding as foliage dies back. For a hungry bloomer that means feeding regularly — every 2-3 weeks — right through flowering across the main season (spring through early autumn), tapering as blooming ends.

What strength of feed for anemone coronaria 'hollandia'?

What does over-feeding anemone coronaria 'hollandia' look like?

Lots of lush leaves but few flowers (too much nitrogen). Scorched leaf edges and salt crust from too-strong or too-frequent feeds. Soft, sappy growth prone to aphids and mildew. Using a high-nitrogen general feed on anemone coronaria 'hollandia' is the headline mistake — you grow a big leafy plant with few flowers. The second is simply under-feeding a genuinely hungry bloomer and getting a sparse, short display.

Should I flush the soil of anemone coronaria 'hollandia'?