Skip to content
Pocket Botanist
Get the app

Matgrass · Nardus stricta

Why is my Nardus stricta not flowering?

It is less common for this grass to fail to bloom when grown in its ideal outdoor environment, as it naturally produces small, inconspicuous flower spikes in summer. This usually happens when the plant is not receiving enough direct sunlight or is struggling with poor soil conditions. Check your light levels first to ensure your matgrass is getting full sun all day.

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

Check these first

  1. Measure the hours of direct sun hitting the plant each day.
  2. Inspect the soil for signs of compaction or extreme dryness.
  3. Check if the plant is root bound in its current container.

Likely causes

  1. Insufficient Sunlight

    Most likely

    How to tell: The plant looks thin and lacks the energy to produce its characteristic flower stalks. It may also lean heavily toward the nearest light source.

    What to do: Move your container to a spot that receives at least 6 to 8 hours of direct sun daily. If it is in the ground, prune back any overhanging branches or nearby shrubs that are casting shade.

  2. Soil Nutrient Imbalance

    Possible

    How to tell: The grass appears stunted and pale, suggesting the soil is depleted of the minerals needed for reproductive growth. This often occurs in containers where nutrients wash away over time.

    What to do: Test the soil before adding anything, since this grass is adapted to nutrient-poor, acidic soils. Only feed it lightly if a test shows a clear deficiency. Avoid high nitrogen formulas, which encourage leaf growth at the expense of flowers.

Other plants that won't flower

Find out what's wrong with your matgrass

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

It is normal for young plants to skip flowering during their first year as they focus on establishing roots. You should only worry if the plant is mature and has been in the same spot for several seasons without showing any signs of spikes.

Stopping it coming back

Keep your matgrass in a bright, sunny location and maintain consistent soil moisture throughout the growing season to support healthy development.

Matgrass: not flowering? Check yours with a photo

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

Do I need to prune the flowers after they fade?
You can trim back the spent flower stalks if you prefer a tidier look. It is not strictly necessary for the health of the plant.
Will my matgrass flower indoors?
Nardus stricta is a hardy outdoor grass that requires the intensity of natural sunlight to bloom. It will almost never flower if kept as a houseplant.

More problems with Matgrass

Back to the Matgrass 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.