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Hi. I am looking for a clematis that will cover the roof of my pergola. The ‘Modern Gardens’ magazine recommends the Sweet Autumn plant but I am not sure if it will be hardy enough. We live in an open spot which catches strong winds, are at approx. 200 metres above sea level however it will get the sun (if we are lucky)! I already have a Montana so I was thinking of a later flowering plant. It will be next to our window so will be in full view. Any suggestions greatly appreciated. Thanks
Hi Cath, I would probably go for any of our viticella types for the top of you pergola, they reach good heights and are very robust and flower later in the season, as all our plants are 2 years old in 2 litre pots and fully hardy, it means that they are fully mature and can be planted at anytime of year, so the sooner they go in the better they will perform this same season.
Hope this helps please see link below
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Chris and Suzy