Getting it to bloom

Why won't my Cymbidium erythrostylum bloom? (and how to make it flower)

Also called Red-column Cymbidium (Cymbidium erythrostylum).

More about cymbidium erythrostylum

About Cymbidium erythrostylum

Cymbidium erythrostylum · also called Red-column Cymbidium · flowering

Cymbidium erythrostylum is a Vietnamese species orchid named for the red-marked column at the heart of its crisp white flowers. It blooms unusually early, in autumn, on semi-erect spikes above narrow arching leaves. A heavy parent of modern hybrids, it wants bright light, even moisture in growth, and a cool autumn to flower well.

Plant type: flowering

Watch for — Fails to flower in autumn: Too little light or no cool night drop in late summer. Brighten the position and allow cooler autumn nights around 10-13°C.

The reasons cymbidium erythrostylum isn't blooming

Almost every non-blooming cymbidium erythrostylum traces back to one of these, roughly in order of how common they are:

Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.
Too much nitrogen feed, driving lush foliage at the expense of flowers (very common with general or lawn feeds).
The plant has not been deadheaded, so it stops flowering once it sets seed.
Irregular watering — drought or waterlogging at the budding stage makes buds abort.
It is still too young or was checked by a transplant and is rebuilding before flowering.

Feeding cymbidium erythrostylum a high-nitrogen general feed and growing it in too little sun — you get a big leafy plant and almost no flowers.

The fix — how to get cymbidium erythrostylum to flower

Maximise sun. Give cymbidium erythrostylum the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers.
Switch the feed. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.
Deadhead regularly. Remove spent flowers often to keep it producing more rather than stopping to set seed.
Water consistently. Keep moisture even through budding and flowering — drought-then-flood swings make buds drop.

Light and feeding do most of the heavy lifting here. Dial in the spot with the light guide for cymbidium erythrostylum and get the feeding right with the cymbidium erythrostylum fertilising schedule — the wrong feed (too much nitrogen) is one of the most common silent reasons a healthy plant makes leaves instead of flowers.

Bloom season and what to expect

Cymbidium erythrostylum flowers across its growing season (mostly summer) and, kept fed and deadheaded, can bloom for many weeks or right up to frost.

Post-bloom care so it flowers again

Deadhead, keep feeding lightly, and many will rebloom; collect seed from the best plants at the end of the season if you want to grow them again.

For everything else this plant needs day to day, see the full cymbidium erythrostylum care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Cymbidium erythrostylum blooming — frequently asked questions

Why won't my cymbidium erythrostylum flower?

Cymbidium erythrostylum blooms on the season's growth given enough sun, warmth and the right feed — there is no cold or photoperiod trick, just good growing conditions and a bloom-leaning feed. The most common reason it is not happening: Too little sun — most of these need full sun (or very bright light) to flower well; shade gives leaves, not blooms.

How do I make cymbidium erythrostylum bloom?

Give cymbidium erythrostylum the sunniest spot you have — for most bedding and fruiting plants, more direct light directly means more flowers. Move off high-nitrogen feeds and use a higher-potassium "bloom" or tomato-type feed as it comes into flower.

When does cymbidium erythrostylum normally bloom?