chateau de villandry in the loire valley. photo taken from the ornamental garden with russian sage perovskia flowers in foreground

botanical box castle chateau colorful colourful countryside delicate design europe famous flora floral flower flowering flowers flowery foreground fragrant france french garden gardening gardens herbaceous heritage historic landmark landscape loire medieval nature ornamental ornate outdoor palace park parterre perennial perovskia photo plant pretty purple renaissance russian sage summer taken travel valley villandry