Getting it to bloom

Why won't my Lady Slipper Orchid bloom? (and how to make it flower)

Also called Lady slipper orchid, Slipper orchid, Paph, Venus slipper (Paphiopedilum spp.).

More about lady slipper orchid

About Lady Slipper Orchid

Paphiopedilum spp. · also called Lady slipper orchid, Slipper orchid · flowering

Paphiopedilum, the lady slipper orchid, is a terrestrial orchid prized for its glossy pouched flowers that last up to three months. Grow it in bright filtered light, keep the bark mix evenly moist, and provide 40-60% humidity. It is not on the ASPCA non-toxic list, so treat it as mildly toxic and verify with your vet.

Plant type: flowering

Watch for — Failure to rebloom: Usually too little light or insufficient day-night temperature difference. Move to brighter filtered light and allow a slight night-time drop in temperature to trigger flower spikes.

The reasons lady slipper orchid isn't blooming

Almost every non-blooming lady slipper orchid 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 lady slipper orchid 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 lady slipper orchid to flower

Maximise sun. Give lady slipper orchid 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 lady slipper orchid and get the feeding right with the lady slipper orchid 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

Lady Slipper Orchid 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 lady slipper orchid care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Lady Slipper Orchid blooming — frequently asked questions

Why won't my lady slipper orchid flower?

Lady Slipper Orchid 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 lady slipper orchid bloom?

Give lady slipper orchid 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 lady slipper orchid normally bloom?