If there is someone in your life who is always in the garden or at the local nursery (like myself), be sure to go beyond new clippers or a new shovel this holiday season. Instead, surprise them with the best high-tech smart home sprinkler or stunning propagation vessels to grow even more plant babies. Know any budding gardeners? We've got them covered, too, with incredibly easy-to-care-for moss balls and more green-thumb-approved gift ideas. These 15 gifts will surely bring a smile to your plant-loving friend or your avid horticulturist.