Ask Annie- Planting A Shaded Slope Under An Oak Tree
Posted by Annie Algren on May 24th 2026
I have a shaded slope under a large oak tree. Grass doesn't grow well. What could I plant that is very low maintenance to help prevent erosion and is not invasive? It bumps against our lawn and a hosta bed. It is too steep for mulching. Hey DaisyLu- Shaded slopes under a large tree can definitely be tricky!
I have a shaded slope under a large oak tree. Grass doesn't grow well. What could I plant that is very low maintenance to help prevent erosion and is not invasive? It bumps against our lawn and a hosta bed. It is too steep for mulching.
-DaisyLu in zone 4b
Hey DaisyLu- Shaded slopes under a large tree can definitely be tricky! The combination of shade, tree roots, and dry soil makes grass a struggle, but there are some great low-maintenance options that can help stabilize the soil without becoming invasive!
I would look for shade tolerant groundcovers and tough woodland perennials that spread slowly and will knit together over time. Here are some great options to consider:
Wild Ginger (Asarum Canadense): A personal favorite native groundcover for dry shade. This plant will create a dense mat of heart shaped leaves that glisten sweetly after a summer rain. Bonus points for the otherworldy flowers it sports in spring!
Barrenwort (Epimedium): Another great option for dry shade, this plant spreads gradually and tolerates root competion well. Its delicate pink flowers are sure to cheer up a shady spot in spring!
Sweet Woodruff (Gallium): This groundcover creates whorls of soft, low growing leaves with dainty white flowers in spring. It spreads nicely and is easy to manage. If you are hoping to invite fairies into your garden, this is the plant.
Pennsylvania Sedge (Carex pensylvanica): A native sedge grass that I like to refer to as the Fabio of the woodland garden. This grass offers a soft, flowy, romatic look that is great for naturalizing slopes and pairing with hostas.
Consider planting in small groupings or in rows so that the plants can grow together over time and form a net that will help hold the soil in place. Try adding a layer of leaf mulch the first year to help the plants establish! Check out our blog on living mulch options here.
And remember, gardening is never about perfection, it’s about curiosity, patience, and perserverance! I’m cheering you on as you try new things, learn from the missteps, and celebrate each little success. Until our next chat, happy gardening and keep growing!
-Annie
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