This guide will help you narrow your options and make choosing your clematis a little easier! Climate is the long time, prevaling weather in your area. In the Frozen North, low winter temperatures are what impacts us. Every area in the United States is assigned a hardiness zone rating, based on the coldest temperature expected in an average year.
You can find your zone here. All of Hummingbird Farm's clematis are hardy to Zone 4 and warmer zones; a few are hardy to Zone 3. In warmer parts of the country, high summer temperatures can affect which clematis you choose. While we are not experts on gardening in hotter areas, we suggest that anyone in Zones 7 and higher consider carefully before selecting the Kivistik varieties and the super early types.
The Kivistik varietes will bloom differently than they do here and may struggle with extreme heat. In the very hottest areas, Zones 9 and above, we recommend choosing from the viticella types native to Mediterranean climates and the texensis varieties native to the southwest US.
Remember, these are general recommendations and your results may vary! For more information on gardening in hotter climates, the American Horticultural Society has developed a Heat Zone Map , which shows the average number of days over 86 degrees.
Color is the easiest to consider. They bloom in late spring and again in late summer. Hardy in Zones , this type grows 8 to 10 feet and prefers a partial sun or dappled shade location. This is a sweet choice for patio containers or for climbing up trellises close to windows or paths where the scent can be enjoyed.
Petals have white or pale pink ruffled edges with cerise center bars, and creamy filaments are topped with rosy anthers. Ornamental wooly seed heads form in summer. This variety grows 8 to 10 feet and makes a gorgeous specimen plant climbing on arbors, trellises, or lamp posts.
Flowering in late spring with occasional blossoms throughout the summer, the full flowers grow up to 5 to 6 inches.
Hardy in Zones , it grows 7 to 9 feet tall and is ideal in containers, on vertical supports, or as a ground cover or spiller. Group 3 plants are the latest to bloom, and produce a single flush of flowers with a long season — from early or midsummer to early autumn. The easiest to prune, Group 3 vines need a single, hard pruning in late winter. Stems are cut back to 1 to 2 feet, so stem damage from cold temperatures is never a problem, and flowers form exclusively on new growth.
Group 3 includes many of the showiest varieties, with extra-large flowers that come in an array of dazzling colors. A selection of options with smaller flowers are available in this group as well.
A long bloom time puts on a gorgeous display starting in early summer. Hardy in Zones , this type grows 6 to 10 feet and performs well in containers, as a climber or ground cover, or in small spaces like courtyard gardens.
Wonderfully free flowering, the generous 4- to 6-inch flowers bloom from midsummer to early fall. Growing 10 to 12 feet tall, it makes a handsome climbing specimen for city, cottage, or courtyard gardens. Greenish-white filaments with yellow anthers add striking contrast to the 4- to 6-inch flowers that bloom from midsummer to fall. Fast growing, it reaches 10 to 12 feet tall and is hardy in Zones Train on vertical supports to add late summer color amongst other climbers, like roses.
Hardy in Zones , this semi-woody climber grows up to 10 feet and produces a copious display of flowers from early summer to fall. Spectacular in containers, as a spiller, on vertical supports, or growing through small deciduous trees and shrubs. The small, 2- to 3-inch flowers recurve as they mature, revealing deep pink bands on the inner petals and buttery stamens. Mature growth is typically up to 8 to 12 feet with abundant, steady coverage from midsummer to autumn.
A great choice for a ground cover, climbing on trellises and pergolas, or spilling from containers. Hardy in Zones , flowers measure 2 to 3 inches with a mature plant height of 8 to 12 feet. This vigorous climber reaches 8 to 12 feet and puts on a steady show from midsummer to early autumn. Ideal for climbing up an obelisk or trellis, and clambering through shrubs and trees.
Hardy in Zones , it grows 10 to 12 feet high and is well suited for vertical growth in cottage or courtyard gardens, or sprawling as a ground cover. Growing 10 to 13 feet tall, the sumptuous display is well suited for climbing, containers, or as a ground cover.
Now that you know about the perfect varieties of clematis for Zone 3 and Zone 4, will you plant some of these cold hardy specimens in your garden? If you folks have any questions or your own favorites to recommend for frigid winters, drop us a note in the comments below.
And be sure to check our other clematis guides to get the most from these remarkable, reliable vines. See our TOS for more details. Uncredited photos: Shutterstock. Additional writing and editing by Clare Groom and Allison Sidhu. A writer, artist, and entrepreneur, Lorna is also a long-time gardener who got hooked on organic and natural gardening methods at an early age. These days, her vegetable garden is smaller to make room for decorative landscapes filled with color, fragrance, art, and hidden treasures.
Cultivating and designing the ideal garden spot is one of her favorite activities — especially for gathering with family and friends for good times and good food straight from the garden, of course! This article on clematis was really informative. I especially appreciated the explanation of the 3 groups. Both are popular summer vines that bloom from midsummer to autumn and belong to the same pruning group Group 3 , making them easy to grow together for the pretty, two-tone effect.
If those interest … Read more ». It does very well for me in my very harsh climate blooming profusely at least once and sometimes twice, getting all the way to the top of the house and growing along the gutters.
Ah, mystery solved! Absolutely loved this informative article! We just planted an assortment of these from a local garden center for the new trellis wall at the end of our patio, having no idea they could be shorter or tolerate less sun than a gorgeous showy vine established on the south side of our new house.
Prune this tough, robust violet-burgundy variety down to 20cm in February, to benefit from lots of flowers on new growth, or allow it to scramble through a trellis and flower on branch ends. Thanks to the following clematis specialists who provided information on the plants in this feature:. Floyds Climbers and Clematis. Taylors Clematis. As a rule most clematis prefer to be planted in garden soil rather than in containers.
Clematis benefit from being planted deeper than they were in the purchase pot. Plant about 5cm deeper and new shoots will be encouraged. Browse the fantastic range of fully mature hardy perennials, shrubs, ferns, grasses and bulbs to create a spectacular garden to enjoy all year round. Use code: GW Kick start the festive season and get in touch with your creative side with our minute online class on creating Christmas wreaths with natural materials.
The perfect seasonal addition to your garden, these low-maintenance expertly trained evergreen trees can be enjoyed for years to come. Home Plants 10 pretty summer clematis to grow.
Planting your clematis As a rule most clematis prefer to be planted in garden soil rather than in containers. Pruning clematis above a healthy pair of buds.
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