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Once established it is difficult to remove by hand without leaving behind fragments that will regenerate. If large mats are present, it may be easier to actually lift and renew sections of affected turf. May also be controlled using either 'Bayer Advanced' or 'Preen'.

Once established it is difficult to remove by hand without leaving behind fragments that will regenerate. If large mats are present, it may be easier to actually lift and renew sections of affected turf. May also be controlled using either 'Bayer Advanced' or 'Preen'.

Here is a link that may help you.

https://www.gardeningknowhow.com/edible/herbs/self-heal/controlling-prunella-weeds.htm

It is difficult to advise pruning without knowing what plants or trees you are referencing.
If your plants, shrubs or trees bloom in early spring or blooms on last years growth you should not prune now.

This article will help you.
https://www.gardeningknowhow.com/edible/herbs/self-heal/self-heal-prunella-vulgaris-plant.htm

This appears to be Prunella hyssopifolia. Many Prunella are very noxious weeds, and very tough to get rid of.

This article will give you general information on the genus Prunella, and give you ways to control it: https://www.gardeningknowhow.com/edible/herbs/self-heal/controlling-prunella-weeds.htm