Annual climbing vines add an important dimension to any garden. We have trees reaching for the sky and flowers and vegetables covering the ground. Climbing vines as simple as scarlet runner beans or morning glories and as elegant as clematis add something very special to our gardens.
I have a friend who made a small arbor for herself in the middle of her garden, where she put a chair to give herself someplace to rest between bouts of weeding. She planted scarlet runner beans all around it to provide shade and brilliant color. Scarlet runner beans need nothing more than sun and ordinary good garden soil. They can be planted indoors three weeks before the last frost, hardened off, and then set out in the garden when frost is no longer a threat. Although they make beautiful shade and attract bees, scarlet runner beans are also good to eat. Keep picking the beans and the flowers will keep blooming.
Sweet peas are another colorful and sometimes fragrant annual vine that, like other peas, welcomes the cool spring weather and soil. They can be planted as soon as the soil can be worked. Renee’s Garden seeds offer a large variety of sweet peas including varieties that are suitable for small containers or flower boxes. A trellis to hold these beauties up can be as simple as a wire fence or a handmade twig trellis, or a metal obelisk bought at the garden store.
Morning glories remind me of my grandmother’s garden. I loved the traditional Heavenly Blue, but I usually plant Grandpa Ott, a deep purple morning glory with a wine-red star. This usually reseeds, so although an annual, I rarely have to replant. My Heath Grandpa Ott grew up an arbor post and would bloom well into the fall. One tip for planting morning glories in the ground is to soak the seeds overnight. Make sure no more frost is expected.
The descriptively named cup and saucer vine, Cobea scandens, is a fast growing tropical vine and is an annual in our climate. It will grow up to 20 feet in one season. It must be planted after threats of frost when the soil is a bit warmer. Like morning glory seeds they can benefit from been soaked overnight before planting. The two inch cup-like flowers in blue or white prefer full sun and will bloom all summer.
The lablab bean, sometimes called a hyacinth bean, Lablab purpureus, another tropical fast growing vine, will also grow to 20 feet or more. Even the leaves have a slightly purple cast while the flowers are a rosy purple and the bean pods are an interesting shade of purple. The pods are actually edible, but because they contain high levels of cyanogenic glucosides they must be boiled twice before preparing for a meal. Or you can just enjoy the lush growth and flowers. This is a substantial vine and should be given an equally substantial support to hold it at maturity.
A familiar sight on Greenfield porches is the black-eyed susan vine, Thunbergia grandiflora. I have seen it used in hanging baskets where the vine goes down rather than up, but whether it is planted in a hanging basket or given a trellis in full sun, this is a bright floriferous vine that will bloom all summer long.
Strictly speaking the mandevilla vine is a Brazilian perennial vine, and some people do try to winter it over in the house. My own feeling about many tropical plants like amaryllis, poinsettias and such is that they can be a lot of work to carry over to a new season and I consider them annuals. I do not make any attempt to keep them through the winter. However, if you buy a potted mandevilla at a garden center and decide to try and carry it over the winter the easiest suggestion from the New YorkBotanical Garden is to cut it back hard, to about 12 inches, and put it in your 50 degree basement for the winter. Occasionally give it water. When spring sends out promises that it is coming, bring it out into the sun, water and fertilize it and see if it will start growing and come back for another season.
If you are looking for a really exotic vine for a season you might try the black coral pea, Kennedia nigricans. This exotic is native to Australia, but the mailorder nursery Annies Annuals and Perennials sells potted plants including the dramatic black coral pea. This has handsome green foliage and a true black flower, described as wasp-like, with a bit of gold or ivory at its base. It is not a tall vine, only about three feet and about that wide, but it is suitable for growing in a large pot and a real conversation starter. It does not need especially good soil and requires little watering. This is not a plant for a wet garden.
Vines have many uses in the garden: to make a tall focal point, to make big use of a small area, to provide a privacy screen or to hide some less than lovely area of the garden. Annual vines that grow quickly and lushly can come to the rescue with very little work or financial outlay.
Between the Rows April 16, 2016