Beginner Gardening: My Mandevilla has yellow leaves with brown spots, 1 by hanseycollie

hanseycollie wrote:
Pirl, my first collie was also a sable, Heidi, and she died 23 years ago. Wonder why us collie lovers always remember everything about our dogs? Han is only five so I am praying for another decade with him. He is a therapy dog for a local nursing home, along with being my gardening partner. (He sleeps while I garden, it works for him.)

Kaynla, why the epsom salt? That blew me away, salt on a plant??? I have my mandevillas planted also in planters as they'll be coming inside before our first cold spell - probably in about 4-5 weeks (I hope!). Do you just cut it down and bring it inside your home to spend the winter? I read someplace where you can store them in a heated garage covered...doesn't make much sense to me...?