Can I fertilize to force blooms?

No, fertilizing usually makes the problem worse by encouraging more leaves instead of flowers. Focus on light instead.

Does my wallflower need to be deadheaded?

Yes, removing faded flowers can encourage the plant to put energy into a second flush of blooms.

Why is my Western wallflower not blooming? Causes and fixes

Check these first

Measure the hours of direct sunlight the plant receives.
Check for overhanging trees or shrubs blocking the sun.
Review your recent fertilizing habits.

Likely causes

Insufficient light
Most likely
How to tell: The plant looks stretched out and thin, and it is not producing any flower buds. It is likely in a spot that gets shade for most of the day.
What to do: Move the plant to a location that receives at least 6 to 8 hours of direct sunlight daily. If it is in the ground, prune back overhanging branches that are creating shade.
Excessive nitrogen
Possible
How to tell: The plant has lush, dark green foliage but no flowers. This often happens if the soil is too rich or if you have added too much fertilizer.
What to do: Stop all fertilizing immediately. Western wallflowers prefer leaner soil and will focus on leaves rather than flowers if they have too much nitrogen.

Other plants that won't flower

Find out what's wrong with your western wallflower

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.

When to worry

Worry if the plant is healthy and green but shows no signs of buds by late spring. It is normal for young plants to take a full season to establish before their first big bloom.

Stopping it coming back

Plant in a permanent spot that gets full, unobstructed sun all day long.

Western wallflower: not flowering? Check yours with a photo

Every plant is a little different. Take a photo of your western wallflower 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.

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

Questions people ask

Can I fertilize to force blooms?: No, fertilizing usually makes the problem worse by encouraging more leaves instead of flowers. Focus on light instead.
Does my wallflower need to be deadheaded?: Yes, removing faded flowers can encourage the plant to put energy into a second flush of blooms.

Why is my Western wallflower not blooming?