Dipladenia or Mandevilla? I received a stunning, tall plant with brightly colored trumpet-shaped flowers for Mother’s Day from my son and daughter-in-law. The plant was tagged “Mandevilla.” I loved it so much that I bought a second tall one and a small one in a pot.
I later noticed the small one was labeled dipladenia. With a little research, I found that dipladenia is a type of mandevilla. However, the taller variation is simply noted as mandevilla.
Mandevilla plants are evergreen, tropical vines, commonly known as Funnel Flowers or Rock Trumpets and bloom from June to October. They can be grown as annuals or perennials. Those typically noted as mandevilla crawl upwards to 16.4 feet. They have larger flowers and broader shaped leaves than dipladenia.
Dipladenia belong to the mandevilla genus. The plant grows bushy with downward growth rather than upward and vine-like. The leaves are fine, pointed, deep green, and slightly glossy. Dipladenia grow well in containers and hanging baskets.
All mandevilla plants need at least 6 hours of direct sunlight per day and well-drained, moist soil. They may be grown in or outdoors. If grown indoors, the plants should be kept warm and watered deeply and thoroughly about every 8-10 days. Plants do best when dead and damaged leaves and blossoms are removed. They also may also be trimmed to maintain a desired shape.
Hummingbirds and bees are attracted to the enticing blossoms of these beautiful plants. So, not only do we enjoy the flowers in our gardens, but we also have the birds and bees to watch, as well.
I’ve read that dipladenias are easy to propagate and will try to do so myself. Instructions say to cut a short length of healthy vine and remove the lower leaves. The cutting is then to be planted in a free-draining potting mix and placed in a bright, warm spot. The soil should be moist but not too wet or it will develop root rot.
If plants become infected with spider mites or aphids, the leaves may be wiped gently with a cotton swab and neem oil.
Mandevillas are toxic to humans and pets.