Nj, I think that was me who sait it. When I used to grow Clematis, I had them on the east side of the house and they'd get sun until noon or so, and they did great. I always heard they should get morning sun only.

But since I bought the Ramona, I read several places to give it full sun, which is about 8 hours a day.

yes, they can do really well in full sun.

Some colors do fade in full sun but most prefer sun over shade.

Nelly Moser, Hagley Hybrid, Richard Pennell are three that I know fade badly. This does not affect the plant just the blooms.

Natanya..Sun amounts,intensity and zone is something that should always be part of the thought process when choosing where to plant clematis. For instance..my zone of 8B in Texas has very hot summers..pruning group 3's adore it..especially my Florida's..but some of my pruning group 2's really do fade or droop if not properly watered..which is HUGELY important down here in Summertime...I have a Sprinkler system which services my front and side gardens but NONE in the back gardens...so soaker hoses and hand watering is a task I perform until I work out getting my new drip system going!!..I have found the Japanese Varieties prefer morning sun and afternoon shade down here..and others get brown-out by August...I have both Clematis "Barbara Harrington" & "Comtesse de Bouchard" and they BOTH adore the tons of sun I am letting them have..so they should flourish just beautifully in your zone 6.I would think your zone must be heaven for clematis...just like the three bear..not too hot and not too cold..but just right!