FLOWERS / ASTER Alpine aster. Low-growing plants bloom in early spring in a mix of purple-blue or white flowers. 2020G $3 Add To Basket Listed In: 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 Wyoming USDA Hardiness: 5a View Profile & Listings