What makes Rikka so unique? Quite simply, it's because our focus is on you. Your concerns are our concerns. Perhaps that's one reason why our client retention rate is 97 percent! We keep it "green"! Sustainability is also an ongoing concern for Rikka. We recycle all of our plastic and clay vessels from our growers. We also deposit old potting soil back to Mother Nature. We deliver SEVEN days a week (9:00 a.m. - 8:00 p.m.).