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Hardiness Zone: 5a
Loretta from Hagersville, Ontario
some type of fern possibly...Have they ever grown flowers?
It looks to me like it may be a wild yarrow.
Take one to your local nursery , they should be able to identify it for you.
It is Yarrow. It spreads like crazy but does flower.
It's Yarrow and it can have yellow or white flowers. I started some in my old garden 10 years ago and it became so invasive that I tore it all out the next year.
It's wild yarrow (a weed).
There is a yarrow plant, which spreads like the weed does. Sorry I planted one, I must have 300 popping up everywhere!
Get rid of it! I accidentally planted some because they were part of a wild flower seed mix. It's horrible and it's invasive. It will take over if you let it.
I have lots of Yarrow and as soon as they start blooming they all fall over. What can I do to make them stand straight?
Hardiness Zone: 7a
By Peggy Clark from Springboro, OH
Yarrow does best on dry sites in full sun. Yarrow will grow taller if grown in partial shade or soggy soil, which makes them tend to fall over. Wind can also cause them to fall. In such cases they need to be staked and tied.
Alternatively you can support them with tomato cages but the problem is tomato cages look like tomato cages. You can get a plant support that is green and not as obvious, there are different shapes and sizes. Here is a picture of a round support.
We've tied our plants using fishing line; it's inconspicuous and strong. Put up a few stakes and tie the line in a few rows across the front of the plants and that should keep them standing.
I have several colors of yarrow in my butterfly garden and I save old pantyhose and cut off one leg and use this to tie around the plant when it starts to fall over. It lasts for at least one season and the beige colors don't seem to "stick out" in the flower garden.