They are relatively easy to grow. They have not been invasive under our growing conditions. The water requirements of these plants vary by species and by the size of the plant. The amount of water that you will need to apply will also depend on your climate, soil type, and sun exposure. It is affected by cultural practices, including how you water your plants, whether or not you use mulch, and where windbreaks such as fences, walls, and other vegetation, are located.
All plants require regular watering until their roots are established.
For perennials, this means that they will need water on a regular basis at least during their first growing season. Trees and shrubs may require regular irrigation for up to three years after transplanting. Calocedrus decurrens California incense cedar Cladrastis kentukea Yellowwood Cotinus coggygria Smoke tree Crataegus spp. Green ash Gleditsia triacanthos var. Maackia amurensis Amur maackia Ostrya virginiana Ironwood Phellodendron sp.