Q.Brown Spots
Received a Yucca plant as a gift–tall, full head of leaves on three stalks. It stands in my office next to a sliding glass door. Three leaves have developed very large brown areas, perhaps 2-2 1/2 inches long and 1-1/2 inch wide. Can you advise me on coping with these?

Certified GKH Gardening Expert
This is normally cause by either overwater or underwatering. With yuccas, people tend to overwater them. Make sure you are only watering when the soil is dry to the touch.