Posted: 06/03/2014 at 13:01
Hypericum 'Hidcote has good yellow flowers.
Euonymus 'Emerald and Gold' looks very bright yellow in early summer.
But don't overdo the yellow. I had a chance over-yellowing, various self seeders around that euonymus. There were yellow poppies and yellow corydalis and yellow stylophorums and other oddments. It looked awful.
Yellows are different tones and shades and they kill each other,