Dormant Mandevilla with white spots

We live in Scarborough. I overwintered 3 mandevilla vines in our cool basement and discovered they now have white spots on the stems ( no leaves on plant) which I think might be a mold. The white spots are mostly…

Overwintering Mandevilla

I brought a potted mandavilla indoors 6in pot before frost etc eventually all the leaves dropped , watered during nov to present , having not seen any sign of life so unpotted it and roots look ok , what should…

Dipladenia

Every year I grow two hanging baskets of Dipladenia. At the end of the season they die and I throw them out. Could I plant them in the ground in Toronto? Would they survive? If I brought them in and…

Winterizing Mandevilla Vine

Hello pro`s ! I got this year a mandevilla and it is at 7 feet high. I live in Brampton, Ont.Canada, and don`t know ab.winterizing it. They say to cut down to 30 cm..2`..??? I have a basement floor level…