Japanese Iris will require a moist soil and regular feeding, we prefer a balanced slow release fertilizer applied before flowering. Give Japanese iris a spot in full sun to part shade. A member of the Iridaceae family, Japanese iris is related both to irises commonly grown in the landscape, such as the bearded irises (Iris germanica), and to such wild iris plants as the Northern blue flag (Iris versicolor), a native of North America. Japanese iris thrives well in a soil that is little acidic having pH ranging from 5.5 to 6.5. Irises bloom for a short period of time in early summer, then the leaves remain until fall to collect nutrients for next years blooming. Japanese Iris can grow up to 80 cm (30 to 31 inches) tall. Because the plant is intolerant of excessive water in the off-season, you can simply: David Beaulieu is a garden writer with nearly 20 years experience writing about landscaping and over 10 years experience working in nurseries. Because of its tolerance for wet soil in spring and summer, the Japanese iris is an ideal candidate for use around water features, swimming pools, ponds, and streams. Introducing "One Thing": A New Video Series, The Spruce Gardening & Plant Care Review Board, The Spruce Renovations and Repair Review Board, Japanese iris, Japanese water iris, Japanese flag, sword-leafed iris. Perhaps no other iris is as influenced by good culture as Japanese iris, properly known as Iris ensata. Most are hardy to zone 5 but a winter mulch of pine needles may help your plants survive an open winter. Between May and June, large, snow-white flowers appear with a crepe-like texture that are truly worth raving about. The cultivation of Iris ensata was first noted in literature more than five hundred years ago in Japan. In warmer zones, protect plants with light shade during the hottest part of the day. Soil. Then, make this the season you start the Japanese iris garden you'll enjoy for countless future summers. Japanese iris care will include the division of the rhizomes every three to four years. When plants are grown in containers, they give you more flexibility because you can move them around based on the plants' needs and your own needs. An addition of well aged manure and compost will help in water retention as well as adding nutrients. Iris Care and Culture. Noteworthy Characteristics. The soil PH should be slightly acid, ideally between 5.5 to 6.5. The soil should be humus-rich and lime-deficient. Flower of Japanese iris Japanese iris – cultivation and care Location. They do not however cope with freeing winter conditions, especially in water. Japanese roof iris is also useful in wet areas, such as around ponds and fountains. When blooming is about to begin again, give your Iris some fertilizer to help it produce healthy blooms. SUNLIGHT QUANTITY. Japanese iris (Iris ensata) - Learn more about care, planting, watering, fertilizing, wintering and propagation of the plant. At up to 4 feet tall with dinner plate size flowers, Japanese irises are truly garden royalty. Thrips and iris borer can be controlled with a systemic insecticide (i.e. In the latter case, it profits from a bit of afternoon shade. The flowers are flattish and 3 to 6 inches across, making for an impressive display. Moderate. Grow it in an area that has been amended previously with organic matter and work compost into the soil around it annually. Planting: Newly received plants that are bare root should be soaked in cool water for a few hours or overnight. Constant moisture will reward you with healthy plants and larger blooms. Wet in the spring and keep moist all summer. Fertilizer: Japanese iris are heavy feeders. Extremely eye-catching, Japanese Iris 'Carol Johnson' (Iris ensata) produces large, single flowers presenting plum-purple standards floating atop pale blue falls delicately veined violet-blue and adorned with small golden yellow throats. Japanese Iris care starts with, when the plant needs protection from strong winds, especially during flowering time when the flower stems are tall. They will grow well in the perennial border and will thrive near a water source. Jun 27, 2020 - Explore Patricia Saffles's board "Japanese Iris" on Pinterest. After noon shade in hot areas will benefit bloom. But in colder areas, before investing in a large quantity of bulbs, try planting a few and see how they fare over winter. Most plants do not grow well in such places, leaving homeowners at a loss as to what to plant there. New transplants may not bloom the first year. Dig and divide your plants every 3 to 4 years to maintain plant vigor. For an impressive … Near a pond where the water table is just below the soil surface, they can manage on … Care Of Japanese Iris. Care of Japanese Iris Once planted and placed in the pond, Japanese iris care is minimal. It is a rhizomatous plant that typically grows to 10-12" tall. Sowing. And then transport the plant, pot and all, … Mulching: A mulch of 2 to 4 inches is recommended. Water: Japanese irises do not like to dry out. They are a flowering perennial with moderately simple care and maintenance requirements. Depending on your soils and weather a daily watering may be needed for the first week or two. Do not apply fertilizers to new transplants. Soil requirements: Japanese irises prefer a rich, loose soil with ample organic matter. Take the pot out of your water garden in the fall. BLOOM SEASON. The crown of the plant needs to be above the water line. 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