Weeds Archives - Indiana Yard and Garden - Purdue Consumer HorticulturePurdue University Indiana Yard and Garden

Category: Weeds

Creeping Charlie in the Garden
In the Grow (Q & A)

Creeping Charlie has square stems with opposite leaves. Photo Credit: Dr. Aaron Patton, Purdue University Q: I can control creeping charlie in my yard. How can I safely control/stop creeping charlie in the garden? A:I share this never-ending challenge to keep creeping Charlie (also known as ground ivy) out of my garden beds. Creeping Charlie is an herbaceous perennial that spreads by seed as well as horizontal, above-ground stems called stolons or runners. These runners…Read more about Creeping Charlie in the Garden[Read More]

Pokeweed is on the low end of the toxicity scale
In the Grow (Q & A)

Q: I have a lot of these plants growing in the field near my home. Can you identify this plant for me? And is it poisonous? I have horses and am concerned that this could make them sick. A: This is a very common weed called pokeweed. It is native to much of Eastern North America, including Indiana. All parts of the pokeweed plant are poisonous, especially roots and seeds, but its toxicity is generally…Read more about Pokeweed is on the low end of the toxicity scale[Read More]

Mugwort, wormwood – by either name, a real problem
In the Grow (Q & A)

Q. I am curious if you have an idea about a weed that grows in our yard every year. It spreads very rapidly, seems invasive and grows to a pretty high level as summer goes along. We have asked many people, and they are quite stumped. My wife does not like it, and we pull it and spray it, but it just keeps coming back, spreading and invading. Also, it seems to transplant to other…Read more about Mugwort, wormwood – by either name, a real problem[Read More]

Gardeners worn down; clearweed may be culprit
In the Grow (Q & A)

Q: I have had a garden on our property for about 14 years. Naturally, we’ve always had to deal with weeds, but until last year they had been the usual crabgrass and other types that could be controlled if you kept ahead of them. But last year, some type of weed or ground cover has sprung up, and it’s infuriating!! There is absolutely no way to weed it out by hand because it comes up almost…Read more about Gardeners worn down; clearweed may be culprit[Read More]

Weed or flower? Sometimes it’s in the eye of the beholder
In the Grow (Q & A)

Q) This flower/weed came up in my flower garden this year. I know that I did not plant it and two other people said that they have it growing in their yards also. I took it to our local nursery. They did not know what it was and looked it up in their books but could not find it. They gave me a few suggestions but when I looked them up on the internet, they…Read more about Weed or flower? Sometimes it’s in the eye of the beholder[Read More]

Leaves of Three, Let It Be’ Should Be ‘Leaflets of Three
Yard and Garden News

Spring Gardening Stories

Most gardeners have heard of the wise advice “leaves of three, let it be” referring to the pest plant poison ivy. While not quite as catchy, the saying really should be “leaflets of three, let it be.” Poison ivy leaves are compound rather than simple – a single leaf is divided into three separate portions, called leaflets. Plants with three leaflets are often referred to as being trifoliate. Another key identifying characteristic is that one…Read more about Leaves of Three, Let It Be’ Should Be ‘Leaflets of Three[Read More]

Many possible reasons for early loss of white oak leaves / Marestail Control
In the Grow (Q & A)

Q. I have a white oak tree that lost about half of its leaves to a varmint. I’m guessing June bugs that were in a bunch about 15 feet away. The tree did not put out any new growth except late in the summer on the end of the tallest limb. Meantime, a new tree sprung up. I’ll include some pictures that will show the leaves and their color. I have no idea what flavor…Read more about Many possible reasons for early loss of white oak leaves / Marestail Control[Read More]

Jury still out on use of rubber mulch
In the Grow (Q & A)

Q. Our HOA is considering using rubber mulch in a large area. In your experience, what is the up side or down side? I have read that as it deteriorates the chemical and all ingredients break down and go into the soil. Any thoughts? – LK, Lafayette, IN A. This is a really great question that unfortunately does not yet have a clear answer. There are many questions remaining regarding the long-term safety of using recycled shredded or crumb…Read more about Jury still out on use of rubber mulch[Read More]

Question and Answer
In the Grow (Q & A)

Q. I lost every one of my rhubarb plants late last summer and fall. The plants started dying at one end of the row and just worked on down the row to the opposite end. Someone told me it was due to grubs; another told me that it was moles eating the grubs. Since this is a plant I intend to eat, whatever I use needs to be food safe. A. It is unlikely that…Read more about Question and Answer[Read More]

Question and Answer
In the Grow (Q & A)

Q. For the last two years my Nandina has produced a lot of flowers that promised to berry, but the berries seem to drop off before fruition. It has berried beautifully in the past, and there has been no change in environment. A. Nandina is marginally hardy to southern Indiana, but it is considered to be an invasive, weedy species in the southeastern United States where it forms vigorous spreading colonies. Although commonly called heavenly…Read more about Question and Answer[Read More]