I can't resist a beautiful clematis, and this one is spectacular. The flowers are huge and prolific. I took this flower photo of clematis, 'Multi Blue,' at the Coastal Maine Botanical Gardens, where they were growing up a spectacular pergola. Though these were not growing in containers, clematis, Multi Blue would make a great container plant.
Clematis in general are pretty easy to grow if you give them the conditions that they need to thrive. Clematis like a large container with well drained potting soil. Clematis prefer full sun, but cool feet, meaning that they like full sun, but their roots like to be cool and in the shade. This is easy to do in a garden pot, by planting something around the base of the clematis, which will provide shade to the lower part of the plant.
Clematis, 'Multi Blue,' has a fairly long flowering season from mid-summer until the fall. It can grow up to ten feet high, so provide a trellis or put your pot near something the clematis can climb.
Keep the soil moist but not wet and if possible, never let it dry out entirely.
Clematis, 'Multi Blue,' is hardy in zones 4-9, if planted in the ground. If your clematis is in an unprotected container that you plan to keep out all winter, you should subtract two zones - making it safely hardy to zone 6.
Prune your Multi-Blue clematis way back in early spring as the buds are appearing.