Will my snapdragons bloom again in the fall?

Yes, once the temperatures cool down in the autumn, they will often start producing flowers again.

Does fertilizer help with blooming?

A light application of a bloom boosting fertilizer with higher phosphorus can help, but it won't force blooms if it is too hot.

Snapdragon: not flowering, causes and fixes

Check these first

Check the daily high temperatures in your area.
Look for seed pods forming where the flowers used to be.
Ensure the plant is getting enough direct sun to trigger blooming.

Likely causes

High temperatures
Most likely
How to tell: The plant looks healthy and green but refuses to set buds during the heat of midsummer.
What to do: Provide afternoon shade during the hottest part of the day. Keep the soil consistently moist to help the plant cope with the heat.
Lack of deadheading
Possible
How to tell: The plant has finished its first flush of blooms and is now focusing energy on seed production.
What to do: Snip off the spent flower spikes just above the next set of leaves. This encourages the plant to put energy into new buds instead of seeds.

Other plants that won't flower

Find out what's wrong with your snapdragon

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

It is normal for snapdragons to take a break from blooming when summer temperatures consistently exceed 80 degrees.

Stopping it coming back

Plant them early in the spring so they establish well before the summer heat arrives.

Snapdragon: not flowering? Check yours with a photo

Every plant is a little different. Take a photo of your snapdragon 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

Will my snapdragons bloom again in the fall?: Yes, once the temperatures cool down in the autumn, they will often start producing flowers again.
Does fertilizer help with blooming?: A light application of a bloom boosting fertilizer with higher phosphorus can help, but it won't force blooms if it is too hot.

Why are my snapdragons not producing any flowers?