How do I "soften" my outdoor brick wall?

What are you trying to achieve?

Cathryn you want to make your brick walls softer? Could you provide some more info so we can understand your question?

Hello, Could you possibly post a photo to better see the wall and be able to suggest some possible ideas?

Are you considering paint or a smear technique possibly?

Heres a link that you might consider? Houzz and Pinterest are other sites that can offer wonderful visuals for decision making.

https://www.bobvila.com/articles/german-smear/

If you are looking to make the appearance softer. Dab on a lighter color with a sponge and watered down paint. This allows you to determine how much coverage you want and is not like painting solid color.

Can youplace planters atop, with trailing flowering vines?

Paint? https://www.hometalk.com/diy/paint/exteriors/painted-brick-1319465

Painted Brick