White Margined Hyacinth Orchid. This Asian native orchid has to be one of the best flowering and easy to grow of the hardy orchids. It is a very early bloomer for us here, starting in early March, with orchid-lavender flowers which can get from 12-18" high. It grows from a pseudo-bulb in well drained but uniformly moist soil with good organic matter. This selection has fine white margins to its leaves. It is easily divided from mid-summer on into the fall.