Clematis tangutica in Edmonton city art centre
The yellow color is a rarity in Clematis Introduced from Europe years ago, it is considered as an invasive plant in Alberta. However, you still can buy it from local garden centres. http://www.invasiveplants.ab.ca/InvasiveOrnamentals.htm Clematis tangutica grows very fast and seeds germinate easily. I grew it years before and I had to pull out seedlings in my garden every year.