What do the flowers look like?

They are small, white, clover like heads that appear on stalks above the foliage. They are quite delicate and add a nice touch to the plant.

Does it need fertilizer to bloom?

A balanced liquid fertilizer applied once a month during the growing season can help. Do not overfeed, as this can lead to excessive leaf growth instead of flowers.

Why is my Alligator weed not flowering? Causes and fixes

Check these first

Assess the daily light exposure.
Check the ambient temperature of the room.
Ensure the plant is mature enough to bloom.

Likely causes

Insufficient light
Most likely
How to tell: The plant looks leggy and pale, with no signs of flower buds forming.
What to do: Move the plant to a spot with full sun or very bright indirect light. If indoors, use a grow light for 10 to 12 hours a day. Ensure it receives at least 6 hours of direct sunlight if possible.
Temperature fluctuations
Possible
How to tell: The plant is healthy but refuses to set buds despite good light.
What to do: Keep the plant in a warm environment between 70 to 85 degrees Fahrenheit. Avoid placing it near cold drafts or air conditioning vents. Consistent warmth is key to encouraging blooms.

Other plants that won't flower

Find out what's wrong with your alligator weed

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

Do not worry if your plant is young, as it needs to reach a certain size before flowering. It is normal for this plant to skip flowering if the growing season is too short or cool.

Stopping it coming back

Provide consistent, high intensity light and keep the plant in a warm, humid environment throughout the growing season.

Alligator weed: not flowering? Check yours with a photo

Every plant is a little different. Take a photo of your alligator weed 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

What do the flowers look like?: They are small, white, clover like heads that appear on stalks above the foliage. They are quite delicate and add a nice touch to the plant.
Does it need fertilizer to bloom?: A balanced liquid fertilizer applied once a month during the growing season can help. Do not overfeed, as this can lead to excessive leaf growth instead of flowers.

Why is my Alligator weed not flowering?