What is it? - Ask Extension
So, several years ago, I bought this plant. The ID tag was long gone, but I figured I was safe, it was from a nursery. I have it in a planter pot. I ...
Knowledgebase
What is it? #876148
Asked July 06, 2024, 8:08 PM EDT
So, several years ago, I bought this plant. The ID tag was long gone, but I figured I was safe, it was from a nursery. I have it in a planter pot. I have been told twice now to check, that it might be invasive. I haven't been able to find out what it is. Any ideas? I really don't want to get rid of it, if I don't have to...
Thank you, Dee
Linn County Oregon
Expert Response
Hi Dee,
Thanks for contacting ask extension with your concern about your plant. Your plant is a species of Hypericum (St John's wart). There are over 500 species of Hypericum with many being referred to as St John's wart. Hypericum perforatum is listed as a type b noxious weed in many states including Oregon. But I don't believe your plant is a Hypericum perforatum.
Here is a link to a description and pictures of the H. perforatum (the noxious weed). https://burkeherbarium.org/imagecollection/taxon.php?Taxon=Hypericum%20perforatum
Notice the color of the stem is green while yours is brownish red. Also notice the black spots along the petal edges of the flower and long stamen.
Check the petals of your plant once it fully opens and compare. If they don't have the black spots, then you can be confident that you do not have a noxious weed.
If you like you can send another picture once the flower opens.
Happy Gardening!
Thanks for contacting ask extension with your concern about your plant. Your plant is a species of Hypericum (St John's wart). There are over 500 species of Hypericum with many being referred to as St John's wart. Hypericum perforatum is listed as a type b noxious weed in many states including Oregon. But I don't believe your plant is a Hypericum perforatum.
Here is a link to a description and pictures of the H. perforatum (the noxious weed). https://burkeherbarium.org/imagecollection/taxon.php?Taxon=Hypericum%20perforatum
Notice the color of the stem is green while yours is brownish red. Also notice the black spots along the petal edges of the flower and long stamen.
Check the petals of your plant once it fully opens and compare. If they don't have the black spots, then you can be confident that you do not have a noxious weed.
If you like you can send another picture once the flower opens.
Happy Gardening!
I am so happy, it is totally different from the photo, and no black spots! Once this beastly weather is over, probably fall, I will put it in my garden.
Thank you so much!
Dee
Your very welcome!
