Fertilising guide
How to fertilise Calypso Cilantro (Coriandrum sativum 'Calypso')— schedule & NPK
Also called Calypso Cilantro, Coriander, Chinese Parsley.
More about calypso cilantro
About Calypso Cilantro
Coriandrum sativum 'Calypso' · also called Calypso Cilantro, Coriander · herb
A PBR-protected slow-bolting cilantro variety bred specifically for maximum leaf production, reportedly 3 weeks slower to bolt than the benchmark 'Santo'. Features deep green, broad, bushy foliage with an upright, lush habit. Excellent for market growers and home gardeners seeking extended fresh harvests.
Growth habit: Upright, bushy annual with dense, broad-leafed foliage and compact rosette form
What fertiliser calypso cilantro actually wants — and why
Calypso Cilantro is a soft, fast leafy herb that you harvest hard — a modest balanced feed keeps tender growth coming without tipping it into bland or bolting.
A balanced general feed (even N-P-K) at modest strength — enough nitrogen to keep replacing the leaves you pick, but not so much that flavour thins or it bolts to seed.
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 calypso cilantro: 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 calypso cilantro, 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 calypso cilantro:
Apply a balanced, low-nitrogen granular fertiliser at planting. Avoid high-nitrogen feeds, which push leafy growth but can hasten bolting. For container growing, a diluted liquid feed once at transplanting is sufficient. In practice: a balanced liquid feed every few weeks through the main growing and harvesting season (spring through early autumn), more often the harder you are picking it.
The dormant-season rule matters more than the exact interval: skip feeding entirely when calypso cilantro 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 calypso cilantro
Half strength is a sensible default for calypso cilantro — enough to fuel regrowth after cutting, gentle enough that the leaves stay aromatic rather than watery.
Feeding always goes onto already-damp soil, never dry roots — water calypso cilantro first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the calypso cilantro watering schedule.
Signs you are over-feeding calypso cilantro
Over-feeding is far more common — and more damaging — than under-feeding for most plants. The classic tells for calypso cilantro:
- Fast, soft, pale growth with diluted, less aromatic flavour.
- Early bolting (running to flower) and a bitter edge.
- Salt crust and scorched tips on container plants.
Signs you are under-feeding calypso cilantro
- Pale, slow regrowth after cutting and small leaves.
- A tired, stalled plant that cannot keep up with harvesting.
- Yellowing older leaves in a long-spent pot.
If the symptoms point at watering, light or roots rather than nutrition, the full calypso cilantro care brief covers soil, humidity and the common problems for this species.
Flushing and leaching the salts
Pot-grown calypso cilantro builds up feed salts quickly — water until it drains each time and flush the pot with plain water every few weeks, especially on a sunny windowsill.
Organic vs synthetic feeds for calypso cilantro
Organic options
A diluted seaweed feed or worm-casting tea keeps soft growth coming without overdoing it. UK: dilute seaweed or Westland; US: Espoma Garden-tone or Neptune's Harvest. Gentle, hard to overdo, flavour-friendly.
Synthetic / liquid feeds
A balanced liquid feed at half strength through harvesting — UK: Phostrogen, Baby Bio or Westland; US: Miracle-Gro all-purpose at half strength. Fast regrowth; just do not overdo the nitrogen.
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 calypso cilantro — frequently asked questions
What fertiliser does calypso cilantro need?
A balanced general feed (even N-P-K) at modest strength — enough nitrogen to keep replacing the leaves you pick, but not so much that flavour thins or it bolts to seed. Calypso Cilantro is a soft, fast leafy herb that you harvest hard — a modest balanced feed keeps tender growth coming without tipping it into bland or bolting.
How often should I feed calypso cilantro?
Apply a balanced, low-nitrogen granular fertiliser at planting. Avoid high-nitrogen feeds, which push leafy growth but can hasten bolting. For container growing, a diluted liquid feed once at transplanting is sufficient. Apply a balanced, low-nitrogen granular fertiliser at planting. Avoid high-nitrogen feeds, which push leafy growth but can hasten bolting. For container growing, a diluted liquid feed once at transplanting is sufficient. In practice: a balanced liquid feed every few weeks through the main growing and harvesting season (spring through early autumn), more often the harder you are picking it.
What strength of feed for calypso cilantro?
Half strength is a sensible default for calypso cilantro — enough to fuel regrowth after cutting, gentle enough that the leaves stay aromatic rather than watery.
What does over-feeding calypso cilantro look like?
Fast, soft, pale growth with diluted, less aromatic flavour. Early bolting (running to flower) and a bitter edge. Salt crust and scorched tips on container plants. Over-feeding calypso cilantro with strong nitrogen is the usual mistake — it grows fast and lush but the leaves turn bland and it bolts to flower sooner, ending the useful harvest early.
Should I flush the soil of calypso cilantro?
Pot-grown calypso cilantro builds up feed salts quickly — water until it drains each time and flush the pot with plain water every few weeks, especially on a sunny windowsill.
Keep reading
- Calypso Cilantro care — the full brief (light, soil, humidity, problems, pet safety)
- How often to water calypso cilantro — 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 greek mountain tea
- How to fertilise spearmint 'kentucky colonel'
- How to fertilise pineapple mint
- All 6887 fertilising guides in the Growli library