Allium senescens 'Blue Twister' Corkscrew Ornamental Onion 12" x 10" wide (seed & division propagated). Selected for its noticeably brighter, blue-green foliage. Blue Twister is very attractive with its distinctive corkscrew leaves and summer-long display of lavender-pink flowers (deadheading keeps the new flowers coming). Plant in among groundcovers that have gray foliage Cerastium, Marrubium, and Woolly Thyme are all good choices. An easy-to-grow plant in any garden soil. Zones 3-8.