They contain both native and non-native wildflowers. Non-native species were chosen on the basis of their versatility or ability to adapt to various conditions.
Do not fertilize wildflowers unless the soil is extremely depleted of nutrients. Fertilizers encourage weed growth and lush foliage rather than flowers.
It is really thirsty, water freely during growing months and moderately in Winter. Keep soil evenly moist, but do not overwater making the soil too soggy.