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More "spreading" native plants to identify and control #867701

Asked May 09, 2024, 10:35 AM EDT

Please help me identify these natives and suggest alternative natives that would be less aggressive, or equally as aggressive so as to compete with these. Thank you for your help.

Chisago County Minnesota

Expert Response

Thank you for writing.
The picture on the left 5427 is Canadian Goldenrod  https://www.minnesotawildflowers.info/flower/canada-goldenrod  BTW, it came from Europe.
THe other picture is Giant Hyssop  https://www.minnesotawildflowers.info/flower/yellow-giant-hyssop  This one is on my property and seeds like crazy.
Fortunately both plants are easy to pull out. 
The solution here is to thorough clear the area (put all weeds in compost bags not on your compost pile!) and then apply 4-5 inches of mulch over the area and then replant through the mulch.
Alternatively you can pull out plants as above and then solarize for six weeks, cover with mulch. This is somewhat more effective. 
 https://extension.umn.edu/planting-and-growing-guides/solarization-occultation#:~:text=What%20is%20solarization%3F-,Solarization%20is%20the%20process%20of%20placing%20a%20clear%20plastic%20tarp,pathogen%20populations%20in%20the%20soil.
Thank you for writing.
The picture on the left 5427 is Canadian Goldenrod  https://www.minnesotawildflowers.info/flower/canada-goldenrod  BTW, it came from Europe.
THe other picture is Giant Hyssop  https://www.minnesotawildflowers.info/flower/yellow-giant-hyssop  This one is on my property and seeds like crazy.
Fortunately both plants are easy to pull out. 
The solution here is to thorough clear the area (put all weeds in compost bags not on your compost pile!) and then apply 4-5 inches of mulch over the area and then replant through the mulch.
Alternatively you can pull out plants as above and then solarize for six weeks, cover with mulch. This is somewhat more effective. 
Thanks for the identification.
Both the goldenrod and hyssop are amongst other native plants.

Solarization is not very feasible within the native garden.
I can pull them, but surely I don't get all the roots/runners.
What should I plant in that place which could successfully compete with any remaining roots?
I have found that monarda is quite aggressive and perhaps more "valuable" to pollinators.
Do you know of any other natives that a just a bit less aggressive?
Thanks.


On Thu, May 9, 2024 at 9:59 AM Ask Extension <<personal data hidden>> wrote:
The Question Asker Replied May 09, 2024, 11:45 AM EDT
At this point you are trying to create a pollinator garden or bee lawn.  
The issues have to do with sun/shade, moisture in the ground, and also creating a full season of blooms from May to October. 
Here are some good resources for you. 
https://bwsr.state.mn.us/residential-pollinator-habitat
https://extension.umn.edu/lawns-and-landscapes/flowers-pollinators
https://northerngardener.org/building-a-pollinator-garden/
https://beelab.umn.edu/pollinator-garden
https://bwsr.state.mn.us/l2l
There is a tremendous garden store in Scandia.

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