Viennetta Clematis ' Viennetta ' is Brand new to our nursery! Provender Nurseries are progressive and professional in our approach to supplying the landscape industry with a diverse range of plants and landscaping kit. Available Autumn. Appearing Provender Nurseries in Swanley, Kent are an independent wholesaler of plants and products related to the landscape industry. Florida / Clematis VIENNETTA™ 'Evipo006' Clematis VIENNETTA™ 'Evipo006' Clematis VIENNETTA™ 'Evipo006' £16.00. developed from the florida sieboldii or florida sieboldiana as it's also known ( even florida Bicolor) and the florida Plena ( or alba plena) Clematis ' Viennetta ' is very free flowering and stunning to look at all summer long flowering from june to oct : Email Address: Name: Availability: Out of stock. Clematis florida var sieboldiana 'Vienetta' is a very special cultivar with large blooms that are around 12cms (4 inches) across, with pure white petals that surround a large, frilly center of black and purple that resembles a Passionflower! A free flowering deciduous climber with unique and remarkable flower shape. Sign up to get notified when this product is back in stock. Clematis - florida Viennetta Clematis ' Viennetta ' is Brand new to our nursery!