Will Silver Mound Artemisia Survive an Indiana Winter in a Tire Planter?

Silver mound (Artemisia schmidtiana 'Silver Mound') is a popular foliage perennial prized for its soft, silvery‑green mounds. If you've planted one in a tractor tire in Indiana (USDA zones 5–6), you're likely in good shape—most artemisias are hardy in zones 4–8.

Container Considerations

Plants in above‑ground containers experience colder root zones than in‑ground plantings because the soil freezes from the sides as well as the top. A tire planter offers some insulation, but the root ball is still more exposed.

Tips for Winter Survival

• Mulch heavily: After the ground freezes, pile 4–6 inches of straw, shredded leaves, or evergreen boughs over the crown.
• Ensure drainage: Make sure the tire has drainage holes so water doesn't pool and freeze around roots.
• Consider moving: If possible, roll the tire into an unheated garage or against a south‑facing wall for extra protection.

Identify the exact cultivar if you can—some artemisias are more tender. With a little extra care, your silver mound should return vigorously each spring.