Clematis crops are really tall, a bushy vine that takes a lot of space. Keeping an “eye” on that new clematis before it may get lost in the flower bed. How to Grow Clematis in Containers in the Frozen North. Filling and Planting the container. Gardeners will grow potted clematis in containers on patios, balconies, in the entryway of the home, on a deck or even in a modern garden. Even in the Frozen North, it is possible to grow clematis in containers, as long as you pay attention to a few important things. Early-flowering clematis of moderate vigour make the best choices for container growing. Clematis for containers. How to Grow Clematis in Containers in the Frozen North P.2 2. Clematises look beautiful cascading down as well as growing upward on a support. In winter, clematis containers can be moved to a more sheltered position against the house, behind a hedge or moved indoors to a garage in order to protect the flower from the elements. Whatever you use, make sure it is good quality - this is not a place to pinch pennies! Yes, you can! Clematis in containers should grace your garden for many years to come, so never use the cheapest growing medium available; select a loam based one (John Innes Compost No.3 in the UK). Ideally the container you use should offer as much protection … If you grow your Clematis in a garden, that’s good, it won’t require that much attention. Planting Clematis in Pots Be sure to use a large container for clematis, because the extra soil in the planter will help protect the roots in the winter and during hot summer days. Before placing the compost in the container do place crocks or pebbles over the drainage holes in the bottom of the container; this gives additional help with drainage. Easier to change sun/shade requirements. When you come right down to it, we grow Betty Corning, one of our largest clematis, in a container of sorts. Growing Clematis in Winter. But, Clematis grown in closed spaces such as a small pot or container will need a lot more care and attention from you. Best containers for growing clematis. Smaller (whiskey barrel-size) containers are filled with a well drained potting soil that we use in the greenhouse. Whether positioned against a wall trellis or grown up an obelisk, these compact climbers are perfect where space is limited. Some factors that might make you decide to grow a clematis in a container are: Added height in the garden bed or as a focal point. Excessive moisture on a dormant clematis is something to avoid, so consider this when you decide what to do in the winter with your container grown clematis..