Is This Invasive But Pretty Green Weed Chickweed?

Filed Under: Weeds, Weeds and Invasive Plants · Keywords: Green, Weed, Invasive, Chickweed · 1300 Views
I have been battling weeds for a few years at the entrance of our neighborhood. This year I mixed in top soil, just cheap bags from box store, where we planted pansies.
It is popping up all over beyond the pansies as well. It is a pretty green from the road right now in this bleak weather. But what is it? and will it prevent pansies from growing when weather warms up?


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Answer #2 · Gardenality.com's Answer · Looks like chickweed to me as well. As John mentioned, the best way to control it is with a weed preventer, which has to be applied when the pansies are planted in the fall or early winter. I use a product containing Treflan for this purpose and never use the weed preventer fertilizer combination products. The fertilizer in these combo products might not be the right type for the plants in the area. For example, pansies benefit from a fertilizer that contains nitrate form of nitrogen.

When weeds are present, the only safe route to go is hand pulling them. As John mentioned, you can spray with a post-emergent herbicide but must use the right product and must be very careful not to allow the spray solution to get on leaves of desirable plants. Never use a LAWN weed killer around plants. Only use one listed for use around plants and trees. Most of these herbicides contain glyphosate. There are some organic weed killers on the market now, which are citrus oil-based, that work well to kill young weeds.

When you plant your spring and summer annual flowers make sure to apply the weed preventer in the flowerbed...and again next cool season when your planting your pansies.

Brent)


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Blumschen

Blumschen · Gardenality Seedling · Zone 7B · 5° to 10° F
I don't mind it growing as it has created this bright green band on the edge of the stone with the pansies.
We only could budget for enough pansies to follow the arch of the front of the stone wall. Like a half pansy ring. But will the chickweed prevent the pansies from fully flowering with the coming warmer weather? Can they thrive together...you know just get along, play fair?

5 years ago ·
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Gardenality.com

Gardenality.com · Gardenality Genius · Zone 8A · 10° to 15° F
Probably won't kill the pansies however, as the temperatures warm, the chickweed will probably start to crawl all over and cover the pansies. You might want to remove the chickweed just from around the pansies.

5 years ago ·
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Answer #1 · Maple Tree's Answer · Hi Blumschen-I believe this is a variety of Chickweed. I can't see the actual stems in the pictures. Possibly they are traveling under the bark and hid in the picture from all the new growth. Chickweed has weak stems and each side of the stem has a row of hairs. The hairs rotate 90 degrees each time the hairs meet a pair of leaves along the stems. This winter annual germinates from seed during the fall and grows and bloom in the winter and spring. When you dug up the soil and mixed it with your other topsoil you most likely unearthed and spread seeds that were lying dormant in the soil. I uploaded a few pictures of the Chickweed foliage below. Let me know if this looks like the plant you have and if it has the stems and hairs on the stems as I noted.

Broad leaf weeds such as this winter annual can be controlled easier in the fall. You can apply a preeemergent herbicide for Chickweed in September. This will prevent most of the seed from germinating. Once the seeds have germinated you can use a postemergent herbicide such as Weed-B-Gone but will have to be extremely carefull not to get this on other plants. Growing in among the panzies makes this difficult to use. Pulling the Chickweed by hand from just around the panzies so they aren't covered over or have to compete with the Chickweed may be all you can do at this time. As Chickweed is a winter annual it should start to die out by June.

John)


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Blumschen

Blumschen · Gardenality Seedling · Zone 7B · 5° to 10° F
This looks very much the same. I noticed when I did pull some it was very water filled in the stems. I will have to go to the entrance to confirm the hairs but I am pretty sure I am looking at the same as your pictures.

5 years ago ·
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