Thank you, I will look for that. The are does get sun later in the afternoon but the trellis is north facing. I have tried climbing hydrangeas, also some variegated ivy but they have hardly done anything. However on one end of the space is a jasmine and it has grown strong but it is in a bush form. Periwinkles grow well on the ground, also some Hellebores but against the trellis is a real problem. Thanks for your suggestion.
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https://www.chilternseeds.co.uk/item_138E_asarina_antirrhiniflora_coccinea