Posted on

weeds tall purple seed

The leaves shoot from the stalk that grows vertically from the soil and can be up to 6 inches long. The stalk does not have spines.

The new vertically growing shoots produce many compound pink or purple flowers. The flowers comprise tufts of pink petals growing from spheres of spined bracts.

This summer annual plant can be difficult to control because of its various survival methods. Even after you think you have rid yourself of your purslane problems, new shoots will somehow defy the odds and emerge out of your turf.

Weed Identification

Flowers bloom from early spring through the late fall months. The flowers have 5 white petals and can be found in clusters on elongated stems. Each petal is deeply notched in the middle and gives the appearance of having two separate petals, but what you’re seeing is a single petal. The white flowers of the mouse ear chickweed are self-pollinated or pollinated by flies.

However, now it is considered a problem plant because of its noxious odor and because of its seed dispersal is so great in such a small area. Once the seeds have fallen to the soil, the weed will wind up outgrowing the native undergrowth in that area. The taproot also releases an allelopathic chemical that inhibits the growth of beneficial fungi.

Its appearance is likely a sign of larger problems in the overall health of your lawn.

A selective product, both pre and post-emergent, can effectively kill this perennial weed without damaging your desired grasses that surround it.

If you’ve made it outside on a recent sunny day, you’ve probably noticed the abundance of flowers blooming in gardens, parks, forests, and throughout King County right now. Unfortunately, the noxious weeds are out there, too—many of them bolting, flowering, and even going to seed already.

Below are some of the top regulated noxious weeds to keep an eye out for this month. Please let us know if you see one of these high-priority invasive plants, so we can make sure they’re controlled or eradicated in time! [Click here to go to the King County Noxious Weed List for the whole list!] Report locations and share photos with us easily on our new and improved Report a Weed online form.

First up, weeds already going to seed or getting close. Catch them now before seeds disperse!

Many garlic mustard plants in King County are going to seed. Note the long, skinny seed pods on this one.

1. Top priority: eradicate before seeds disperse