Easy, happy and of course, lucky, oxalis delivers for newbie and seasoned gardeners alike. Use these fast growing plants to brighten windowsills, filll out patio containers and add color to hanging baskets. Oxalis sprout quickly, sometimes in just a week, and bloom with a sea of tiny flowers on thread-like stems. Also know as lucky shamrocks, these upbeat cheery plants are ideal for small space splashes of green and purple. Once you discovering oxalis, you'll find it's impossible to be without them.