Fertilising guide
How to fertilise Chrysanthemum Greens (Glebionis coronaria)— schedule & NPK
Also called chrysanthemum greens, shungiku, edible chrysanthemum, garland chrysanthemum.
More about chrysanthemum greens
About Chrysanthemum Greens
Glebionis coronaria · also called chrysanthemum greens, shungiku · edible
Chrysanthemum greens (Glebionis coronaria, shungiku) are an annual leafy herb in the daisy family grown for their aromatic, slightly bitter young leaves and shoots used in East Asian cooking. Fast and cool-season, they bolt readily in heat into daisy-like yellow flowers. Harvest tender tips young and often; flavour turns strong and resinous once plants begin to flower.
Growth habit: Upright, branching annual with deeply lobed, feathery aromatic leaves; produces yellow or yellow-and-white daisy flowers once it bolts.
What fertiliser chrysanthemum greens actually wants — and why
Chrysanthemum Greens feeds in two distinct phases — balanced to build the plant, then high-potassium the moment flowering starts to set and fill a heavy crop.
Balanced (even N-P-K) at planting for roots and frame, then switch to a high-potassium ("high-potash") tomato-style feed once the first flowers open — potassium is what sizes and ripens fruit, not nitrogen.
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 chrysanthemum greens: 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 chrysanthemum greens, 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 chrysanthemum greens:
Light feeder. A single dressing of balanced fertiliser or compost at sowing is usually enough; an occasional diluted liquid feed sustains repeated cuttings. Excess nitrogen produces soft growth and dilutes the characteristic aroma. So: a balanced feed or compost at planting, then a high-potash liquid every 1-2 weeks from first flower through harvest across the main season (spring through early autumn).
The dormant-season rule matters more than the exact interval: skip feeding entirely when chrysanthemum greens 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 chrysanthemum greens
Follow the crop-feed label rate for chrysanthemum greens — these are calibrated for hungry vegetables. Consistency through fruiting matters more than strength; erratic feeding causes problems like blossom-end rot.
Feeding always goes onto already-damp soil, never dry roots — water chrysanthemum greens first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the chrysanthemum greens watering schedule.
Signs you are over-feeding chrysanthemum greens
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for chrysanthemum greens:
- Vigorous dark-green leafy growth but few flowers or fruit (excess nitrogen).
- Lush foliage hiding the crop; soft growth prone to pests and disease.
- Salt crust on the soil and scorched leaf edges in containers.
Signs you are under-feeding chrysanthemum greens
- Pale, yellowing lower leaves and stunted growth.
- Small fruit, poor set, and a quickly exhausted plant.
- Blossom-end rot and weak cropping from erratic or insufficient feeding.
If the symptoms point at watering, light or roots rather than nutrition, the full chrysanthemum greens care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
In containers, fertiliser salts build up fast — water chrysanthemum greens thoroughly so excess drains from the base each time, and flush pots with plain water every few weeks to prevent a damaging salt build-up.
Organic vs synthetic feeds for chrysanthemum greens
Organic options
Garden compost or well-rotted manure dug in before planting, plus a liquid comfrey or seaweed feed once fruiting starts. UK: comfrey feed or organic Tomorite; US: Espoma Tomato-tone or Neptune's Harvest. Builds soil and feeds in one.
Synthetic / liquid feeds
A balanced feed at planting then a high-potash tomato feed in fruiting — UK: Growmore at planting then Tomorite (Levington) or Phostrogen; US: a balanced 10-10-10 then Miracle-Gro Tomato or a bloom booster.
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 chrysanthemum greens — frequently asked questions
What fertiliser does chrysanthemum greens need?
Balanced (even N-P-K) at planting for roots and frame, then switch to a high-potassium ("high-potash") tomato-style feed once the first flowers open — potassium is what sizes and ripens fruit, not nitrogen. Chrysanthemum Greens feeds in two distinct phases — balanced to build the plant, then high-potassium the moment flowering starts to set and fill a heavy crop.
How often should I feed chrysanthemum greens?
Light feeder. A single dressing of balanced fertiliser or compost at sowing is usually enough; an occasional diluted liquid feed sustains repeated cuttings. Excess nitrogen produces soft growth and dilutes the characteristic aroma. Light feeder. A single dressing of balanced fertiliser or compost at sowing is usually enough; an occasional diluted liquid feed sustains repeated cuttings. Excess nitrogen produces soft growth and dilutes the characteristic aroma. So: a balanced feed or compost at planting, then a high-potash liquid every 1-2 weeks from first flower through harvest across the main season (spring through early autumn).
What strength of feed for chrysanthemum greens?
Follow the crop-feed label rate for chrysanthemum greens — these are calibrated for hungry vegetables. Consistency through fruiting matters more than strength; erratic feeding causes problems like blossom-end rot.
What does over-feeding chrysanthemum greens look like?
Vigorous dark-green leafy growth but few flowers or fruit (excess nitrogen). Lush foliage hiding the crop; soft growth prone to pests and disease. Salt crust on the soil and scorched leaf edges in containers. Staying on a high-nitrogen feed once chrysanthemum greens starts flowering is the classic error — you get a huge leafy plant and a disappointing crop. Switch to high-potash the moment flowers appear.
Should I flush the soil of chrysanthemum greens?
In containers, fertiliser salts build up fast — water chrysanthemum greens thoroughly so excess drains from the base each time, and flush pots with plain water every few weeks to prevent a damaging salt build-up.
Keep reading
- Chrysanthemum Greens care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water chrysanthemum greens — 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 tomato
- How to fertilise pepper
- How to fertilise cucumber
- All 5561 fertilising guides in the Growli library