Pearlwort

Pearlwort (Sagina procumbens) is a low-growing, mat-forming weed that often pops up in turf areas, gardens, and even between paving stones. You can spot it by its tiny, narrow leaves and small white flowers. Sometimes, people mistake it for moss because it forms dense green carpets, but if you look closer, you’ll notice its leaves feel firmer and its flowers stand up on short stalks.

Characteristics of Pearlwort

Leaves: Pearlwort has small, narrow, bright green leaves. The leaves grow opposite each other along the stems and look shiny.

Flowers: Tiny white flowers grow in small clusters just above the leaves. The flowers are very small and easy to miss.

Growth: Pearlwort spreads low to the ground, forming thick green mats. It grows quickly and covers bare soil or weak grass.

Seeds: The plant produces many tiny seeds. Water can carry these seeds to new places, helping pearlwort spread fast.

Roots: Pearlwort can grow new roots from its stems, which helps it creep and take over more ground.

Habitat: It grows well in both sunny and shady spots, especially where the soil is moist.

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Pearlwort spreads fast and crowds out your grass, leaving your lawn looking patchy and uneven. Its dense mats also make it hard for your turf to breathe and grow well. If you don’t act quickly, a small patch can turn into a big problem in just one season.

Pearlwort is a small, low-growing weed that can quickly spread through lawns and gardens. To deal with it properly, you first need to know what it looks like.

Pearlwort Identification

First, look at the leaves—they’re small, narrow, and blade-like. They grow in pairs and may remind you of grass or moss.

Next, check the flowers. Pearlwort has tiny white flowers with four petals, each less than 4 mm wide. These flowers sit on short stalks just above the leaves.

Finally, look at how it grows. Pearlwort forms flat mats that spread along the ground. Its stems root at the joints, which helps it spread even faster.

Keep Your Lawn Healthy

First, focus on growing a thick, healthy lawn. Mow your grass at the right height for your turf type and avoid cutting it too short. Fertilise as needed and water only when necessary. Healthy grass will crowd out pearlwort and make it harder for weeds to take hold.

Watch Your Watering

Pearlwort loves wet soil, so only water your lawn when it really needs it. Fix any drainage problems and avoid overwatering, as soggy soil gives pearlwort the perfect place to grow.

Remove Pearlwort by Hand

If you see small patches, pull them out by hand or use a knife to lift them out. Try to get all the roots and runners, especially when the soil is moist. The sooner you remove it, the easier it is to keep your lawn weed-free.

Use Mulch in Gardens

In garden beds, spread mulch to block sunlight and stop pearlwort seeds from sprouting. Mulch also helps your other plants grow better by keeping the soil moist and cool.

Try Selective Herbicides

If pearlwort has spread a lot, you can use a selective herbicide. Products with 2,4-D work best, but you might need more than one treatment to get rid of it completely. Always spray when your grass and the weed are both growing well, usually in spring or autumn. Follow the label instructions and make sure the product is safe for your turf type.

Prevent New Infestations

• Fill in bare spots in your lawn quickly so pearlwort can’t move in.

• Check your lawn often and act fast if you see new weeds.

• Clean your mower and tools after use to avoid spreading seeds.

You can also use herbicides for extra help in controlling docks and other tough weeds. For the best results, choose the right herbicide and follow the instructions carefully. Some effective options are:

For more ways to manage Pearlwort Control and other weeds, explore our Selective Herbicide Range.