The Allium leaves match the Aster foliage nearly perfectly, allowing for the blooms to show with no worry of unattractive foliage. The two plants grow at the same rate and the blooms are still visible.
Department of Horticulture, 134A Plant Sciences Bldg, Ithaca, NY 14853 USA, email: hort@cornell.edu | 607-255-4568/1789 | Fax, 607-255-9998/0599