I have bought 2 of these plants and I would like to know how to plant them on a trellis/

Answer #1 · Maple Tree's Answer · Hi Ann-If you are in hardiness zone 10a or higher you can grow this plant in the ground. If you are in a cooler hardiness zone the plant will most likely not survive the winter. The mandevilla does well in containers and is best grown this way so that it can be overwintered indoors in cooler climates. When planted in the ground locate the plant in a sunny location with well draining soil. If your soil is a heavy clay add some sand, gravel, sandy topsoil and/or soil conditioner at a 50/50 ratio with the soil removed from the planting hole. There are several types of trellises available constructed of wood, metal, and plastics. This vining plant can become heavy so you want to use a trellis that will be strong and not deteriorate too quickly. Once planted the trellis can be located a couple of inches behind the plant. The mandevilla will naturally climb up the trellis with the help of its tendrils. You can start this climbing of young shoots by tying up them up to the trellis. These shoots will then continue to climb up your trellis. At times it may help to tie up any new shoots that don't attach themselves to the trellis and fall outward. Your local nursery will carry plant ties you can use to attach the plant to the trellis. Make sure the ties are loose allowing the stems to grow in size without damaging them. Keep your plants continually moist but not too wet or dry. To bloom well the plant will need plenty of direct sunlight or bright light. This plant has a tendency to grow tall and leggy with less blooms when planted in too much shade.

Please ask if you have any other questions.

John)