Q.Ground Cover To Choke Out Weeds AND Prevent Slope Erosion.
Have a steep slope planted with juniper horizontalis about 20 years ago. Slope washing out under and between junipers. starting to have many weeds also (not a problem in the past). Looking for a spreading very low growing ground cover to choke out weeds and simultaneously hold the soil. Zone 6, Mostly sun. Thank you in advance for any insight you can give me.

Certified GKH Gardening Expert
Your junipers are losing their grip on the slope, and weeds are moving in. You need a tough, spreading ground cover to lock in soil and block weeds. Creeping phlox is a solid pick—fast-growing, weed-choking, and throws out a killer bloom in spring. Bearberry is a low, evergreen beast that stays put year-round. Sedum ‘Dragon’s Blood’ spreads aggressively and adds some deep red color. Creeping thyme is another winner, smells great, and suffocates weeds. Brass buttons grow like a dense mat and handle slopes like a champ. To stop the washout, mix in some mulch and small rocks to slow water flow while the plants get established.
https://www.gardeningknowhow.com/plant-problems/environmental/plants-for-erosion-control.htm
https://www.gardeningknowhow.com/plant-problems/environmental/erosion-and-native-plants.htm