Dear CSU Extension Master Gardeners, I am seeking your expertise on preventing further soil erosion and establishing green ground cover under a pine tree where the soil is currently bare. Could you recommend suitable ground covers or other methods that would thrive in this environment? I have attached a few representative photos. Possibly relevant information: - We recently regraded the yard with good quality top soil with compost, ready for planting - The pine tree is huge and the soil is bare under it - Every time the wind blows or it rains, soil gets washed onto the flagstone patio creating a huge mess - We have chickens, so ideally the ground cover could be aggressive / easy to establish