How to cut back foxtail grass.
Cut back unsightly, brown growth to the ground in early spring to rejuvenate just prior to new growth. You may also shear the plant in early summer before they bloom, or let them be and enjoy the silky young 'foxtail' seedheads. Do not prune in fall as its better to leave the foliage on the plant for added protection in winter.
Have a lot of foxtails in the backyard. Is it too late to use an herbicide now? Which should I buy?
This article should help: https://www.gardeningknowhow.com/plant-problems/weeds/controlling-foxtail-weeds.htm
something to kill foxtail grass in potatoes without damaging potatoes
A pre emergent can be applied at a short time period in the spring, before most potato crops are planted.
If you use any post emergent, you do run the risk of killing your potatoes.
Here is a link with more information.
After getting rid of my small field of Foxtails, what flowering wildflower would be good to plant to keep the Foxtails at bay? Thank you.
There are no plants or wildflowers that will hold back Foxtails.
Here are some articles with more information.
Knee high with fuzzy seed heads about size of little finger.
It's your basic foxtail weed and not something you want to keep around.
It has been slowly getting worse each season... how can we get rid of it?
It looks like foxtail. This article should help: