Most clematis require at least a 1/2 day of sun or strong filtered light to bloom well. Gardeners living in warm weather states such as California that have very long growing seasons and very hot temperatures can plant most clematis in a partial shade aspect. However, those living in colder climates with a shorter growing season need to adhere more closely to the following recommendations. The varieties below are only some suggestions and by no means represents all the varieties that can be grown in partial shade.