FLOWERS / MISC-FLOWERS Chinese Foxglove. Syn. Rehmannia angulata. Large, pink, tubular flowers. May be hardy to as cold as Zone 6, though it's mostly listed as hardy only to Zone 8. $3 Add To Basket Listed In: 2021, 2022, 2023, 2024, 2025 Wyoming USDA Hardiness: 5a View Profile & Listings