Growli
Let's go

Fertilising guide

How to fertilise Cymbidium 'Showgirl' (Cymbidium 'Showgirl')— schedule & NPK

Also called Showgirl Cymbidium.

More about cymbidium 'showgirl'

About Cymbidium 'Showgirl'

Cymbidium 'Showgirl' · also called Showgirl Cymbidium · flowering

Cymbidium 'Showgirl' is a popular older hybrid grown for its profuse, long-lasting sprays of soft pink flowers with a lightly spotted lip in winter and spring. It is compact, vigorous, and easy to flower, making it a reliable beginner cymbidium. It rewards bright light, generous summer watering, and a cool autumn rest with abundant blooms.

Growth habit: Sympodial, free-flowering hybrid with rounded pseudobulbs and arching strappy leaves; semi-erect to arching spikes carry many soft-pink blooms over a long season.

What fertiliser cymbidium 'showgirl' actually wants — and why

Cymbidium 'Showgirl' 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 cymbidium 'showgirl': 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 cymbidium 'showgirl', 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 cymbidium 'showgirl':

Feed fortnightly at half strength with a balanced orchid fertiliser in spring and summer, then move to a higher-potassium feed in late summer to firm up the bulbs and encourage flowering. Reduce feeding through winter. 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 cymbidium 'showgirl' 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 cymbidium 'showgirl'

Half strength is the safe default for cymbidium 'showgirl' — 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 cymbidium 'showgirl' first if the soil is dry, then apply the diluted feed. The companion question is when to water at all, covered in the cymbidium 'showgirl' watering schedule.

Signs you are over-feeding cymbidium 'showgirl'

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

Signs you are under-feeding cymbidium 'showgirl'

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

Flushing and leaching the salts

Flush the pot of cymbidium 'showgirl' 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 cymbidium 'showgirl'

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 cymbidium 'showgirl' — frequently asked questions

What fertiliser does cymbidium 'showgirl' 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. Cymbidium 'Showgirl' 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 cymbidium 'showgirl'?

Feed fortnightly at half strength with a balanced orchid fertiliser in spring and summer, then move to a higher-potassium feed in late summer to firm up the bulbs and encourage flowering. Reduce feeding through winter. Feed fortnightly at half strength with a balanced orchid fertiliser in spring and summer, then move to a higher-potassium feed in late summer to firm up the bulbs and encourage flowering. Reduce feeding through winter. 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 cymbidium 'showgirl'?

Half strength is the safe default for cymbidium 'showgirl' — houseplant feeds are formulated strong, and the diluted dose is gentler on the roots while still ample for foliage.

What does over-feeding cymbidium 'showgirl' 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 cymbidium 'showgirl' 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 cymbidium 'showgirl'?

Flush the pot of cymbidium 'showgirl' 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