Most summer-flowering clematis are hardy to at least U.S. Department of Agriculture zone 6. Take care in choosing clematis for your garden, treat them right and you, too, can enjoy these vines' summer flowers. Click for price. All Rights Reserved. It is drought tolerant and cold hardy. Garden catalog descriptions of plants that bloom all summer often seem too good to be true. If you want even bigger flowers, try Elsa Spath. Most summer bloomers get pruned in late winter to early spring. They grow well in borders and patio pots, climbing up pergolas, obelisks and trellis, adding valuable height to the garden. One of the most popular non-vining varieties, ‘Arabella’ bears six-sepaled star-shaped flowers of deep amethyst that start out with a reddish tint. A must-have plant for every backyard, clematis is an easy-care perennial vine that covers itself with big, bold blooms in the spring and summer (there are a few fall bloomers, too). Vining varieties are climbing and will require support. The types of clematis that bloom in summer are divided into vining and non-vining types. It’s funny, there is that Clematis called the sweet autumn clematis, that I don’t think behaves very well, … It flowers all summer long with aromatic blossoms. Another compact clematis, the native Clematis texenis, has scarlet-red bell-shaped flowers and dense foliage. Some other notable vining summer-blooming clematis are: Non-vining clematis are useful in a perennial garden or as stand-alone specimens in containers. The variety of flower size and shape is staggering with new cultivars and collectables coming out annually. Summer and autumn-flowering clematis These late-summer-flowering clematis are among the most popular and there are hundreds of varieties available. By: Bonnie L. Grant, Certified Urban Agriculturist. Those that flower in late summer are classed as Group 3 clematis, and need to be pruned as set out in our advice on winter-pruning clematis . The Clematis x jackmannii hybrids also bloom all summer on new growth, according to University of Arkansas Cooperative Extension's Janet Carson. Tube clematis has blue funnel-shaped blooms, a 3- to 4-foot-tall bush and blooms in August until early fall. The Clematis x jackmannii hybrids also bloom all summer on new growth, according to University of Arkansas Cooperative Extension's Janet Carson. Durand clematis (Clematis durandii) also bloom on new wood, but unlike most clematis they are more compact plants, described as either nonvining or less vigorous, with blue flowers that can range from lavender to indigo. Cooperative extension horticulturalists live in the real world, however, and confirm that some clematis cultivars can bloom all summer. Many of the summer-blooming clematis are in the Group 3 pruning category, which flower on new wood, according to University of Illinois Extension's Sandra Mason. June to September in the Pacific Northwest is significantly less hot and sunny than in Georgia. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. In 2006, as a newly trained Master Gardener, she turned to writing about gardening topics for her local community. Sign up to get all the latest gardening tips! From tree huggers to container varieties, there is a Clematis for every garden and flowers for almost every month of the year! The flower opens in cranberry shade and turns purple during maturity. They look great grown through climbing roses or over shrubs, and are perfect for adding late-season colour. Some types of clematis that bloom in summer and get a hard pruning would be: Oddly, one summer bloomer, Ramona, needs no pruning to produce its sky blue 6- to 8-inch flowers. She has a Doctor of Philosophy in psychology from the University of Virginia. The plant gets 3 feet high and is covered in a mass of 1-inch deep yellow, fragrant flowers. The Ladybird Wildflower Center notes that it is more herbaceous than woody, and climbs a maximum of 9 feet. Durand is a big bloomer with lavender blue flowers that are 4 inches across. If they flower in May/June (Group 2 clematis), trim them at the end of June, then cut back to strong buds in February/March. They should be hard pruned the first two also to encourage more root and stem growth, which will reduce flowering but give you a much better vine over time. Deborah Green began writing in the 1970s during her life as an academic. Mason notes there are many vigorous Clematis viticella cultivars, and that 'Madame Julia Correvon' will produce her red flowers all summer long. So then we extend farther, though in some cases we’ve been going all summer long. It is only 18 to 24 inches tall and wide, and has lavender flowers with ivory centers. Some are summer bloomers, while others are many later bloomers, but they all need to be pruned in the same way to ensure that they will continue to bloom … Summer-flowering clematis varieties may bloom only in June and July, or they may last until fall. Garden catalog descriptions of plants that bloom all summer often seem too good to be true.