Getting it to bloom

Why won't my Chinese Lantern Plant bloom? (and how to make it flower)

Also called Chinese Lantern Plant, Winter Cherry, Bladder Cherry, Japanese Lantern (Physalis alkekengi).

More about chinese lantern plant

About Chinese Lantern Plant

Physalis alkekengi · also called Chinese Lantern Plant, Winter Cherry · flowering

Chinese Lantern Plant is a spreading perennial grown for its striking papery orange-red calyces that envelop small red berries in autumn, providing dramatic late-season garden colour and dried arrangements. It spreads vigorously by rhizomes and can become invasive. The ornamental lanterns are the key feature; unripe berries and leaves are toxic.

Plant type: flowering

The reasons chinese lantern plant isn't blooming

Almost every non-blooming chinese lantern plant 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 chinese lantern plant 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 chinese lantern plant to flower

Maximise sun. Give chinese lantern plant 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 chinese lantern plant and get the feeding right with the chinese lantern plant 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

Chinese Lantern Plant 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 chinese lantern plant care brief and its watering schedule — a stressed, badly watered plant rarely has the energy to flower at all.

Chinese Lantern Plant blooming — frequently asked questions

Why won't my chinese lantern plant flower?

Chinese Lantern Plant 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 chinese lantern plant bloom?

Give chinese lantern plant 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 chinese lantern plant normally bloom?