Skip to content
Pocket Botanist
Get the app

Canna lily · Canna × generalis

Why is my Canna lily not producing any flowers?

Canna lilies are sun worshippers that need a lot of energy to bloom. If yours is just leaves, it is likely missing out on the light or nutrients it needs.

Not sure it's this? Check a photo of your plant for free

Check these first

  1. Measure how many hours of direct sun the plant gets.
  2. Check if the plant is in a shady spot.
  3. Verify when you last added fertilizer.

Likely causes

  1. Insufficient Light

    Most likely

    How to tell: The plant looks tall and stretched out, and the leaves are a pale green. It is reaching for more sun.

    What to do: Move the plant to a spot that receives at least 6 to 8 hours of direct sunlight every day. If it is in a pot, shift it to the sunniest part of your patio.

  2. Lack of Nutrients

    Possible

    How to tell: The plant looks healthy but just refuses to set buds. This often happens in poor soil or pots that have not been fertilized.

    What to do: Apply a balanced, slow release fertilizer once in the spring. You can also use a liquid bloom booster fertilizer every 2 weeks during the growing season.

Other plants that won't flower

Find out what's wrong with your canna lily

The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

Download on the App StoreGet it on Google Play

When to worry

If you are well into the summer and there is no sign of a flower spike, the plant is likely not getting enough sun. It is normal for young plants to focus on foliage growth before they bloom.

Stopping it coming back

Plant your Cannas in full sun and feed them regularly throughout the summer to support flower production.

Canna lily: not flowering? Check yours with a photo

Every plant is a little different. Take a photo of your canna lily and Pocket Botanist tells you which cause is most likely, how serious it is, and what to try first. A few checks a day are free. Save the plant and you get care reminders timed for it.

Download on the App StoreGet it on Google Play

Get the app · Or check it from a photo now, free

Questions people ask

Can I grow Cannas in the shade?
They will grow, but they will rarely flower. They need full sun to produce those big, beautiful blooms.
How often should I fertilize?
Every 2 to 4 weeks during the active growing season is perfect for keeping them blooming.

More problems with Canna lily

Back to the Canna lily guide

This article was generated with AI on from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.