Many hardy iris plant varieties will grow well in moist bog areas. Louisiana Iris, Japanese Iris and some others grow best if soil is kept evenly moist with about a half inch of water above the soil line. We have a wide variety of aquatic iris plants available to add a beautiful display of color to your pond during the spring months. Iris bloom once a year usually April to June, and may need a year to establish before they begin blooming. CALIFORNIA AND ARIZONA CUSTOMERS NOTE: OUR MARGINAL BOG PLANTS ARE NOT AVAILABLE TO SHIP TO CALIFORNIA AND ARIZONA DUE TO CALIFORNIA AND ARIZONA STATE AGRICULTURAL LAWS NOT PERMITTING SHIPPING POTTED PLANTS WITH SOIL INTO THE STATE.