Lafayette's Master Gardeners are watering fastidiously, fertilizing where necessary, and whispering sweet words of encouragement to many garden treasures that will be sold at the their annual Plant Fest. Held at The Horse Farm, hard core gardeners and novices alike can also attend presentations and workshops and receive advice on their most persistent plant problems. Children's activities, vendors, crafts, and guided tours of the Horse Farm are available for those without a plant fetish. 8 am—4 pm at 2913 Johnston Street. plantfest.org.