Repetition -This is where similar colors, textures and shapes are repeated through the property to give a sense of cohesion.
Look for ways to repeat shapes (think angles, curves, slats etc) to give a sense of cohesion to the front of the house, yard, fence and everything you see from the street. If you can “link” the look of the house exterior to the house interior, you are helping to create one of the components of that all-important indoor-outdoor flow.
You can start with creating cohesion between the fence and the house by repeating some of the colours and materials from one to the next where appropriate.
read more at: http://www.domain.com.au/advice/four-ways-to-boost-your-curb-appeal-20160923-grmpkt/