Blogs » Don's Expert Answers » Don’s Expert Answers: Can I grow hydrangeas in a brick planter box, it’s 3 bricks high Don’s Expert Answers: Can I grow hydrangeas in a brick planter box, it’s 3 bricks high Question From: Nature of problem: Type of Plant (if known): None None Potting mix None West facing None No Outdoor Not yet None Answer: Hi Louise, “Three bricks high” doesn’t help me to help you much. Please send me more details such as the interior dimensions of the planter box: interior width, depth and height. Hydrangeas make great pot plants but they need luxuriou...