I recently (about a month ago) planted a sweet mint plant in my medium-sized window box alongside my small pepper plant and English thyme. It's grown very fast, and seems to have settled on a height of about 12 inches. However, I've noticed the past few days that several of the leaves near the bottom of the plant are turning brown around the edges. I live in Colorado, and the past week or so has been very hot (low 90's F) in addition to being dry, so I've taken to watering the window box twice a day. My window faces SW so the plants get sun mostly in the afternoon. Is this just an overwatering problem or something else? And should I trim off these brown leaves or the entire lower stems?
I recently (about a month ago) planted a sweet mint plant in my medium-sized window box alongside my small pepper plant and English thyme. It's grown very fast, and seems to have settled on a height of about 12 inches. However, I've noticed the past few days that several of the leaves near the bottom of the plant are turning brown around the edges. I live in Colorado, and the past week or so has been very hot (low 90's F) in addition to being dry, so I've taken to watering the window box twice a day. My window faces SW so the plants get sun mostly in the afternoon. Is this just an overwatering problem or something else? And should I trim off these brown leaves or the entire lower stems?