WARM CLIMATES: Avoid the hot weather periods; many prefer the cooler fall period. Internet users can shop many of these gardens by visiting the American Iris Society website and our list here. Tetraploids (tet.) SIBERIAN IRIS CULTURE reprinted from 'Basic Iris Culture' Siberian irises are outstanding perennial landscape plants. You may wonder when to plant Siberian iris to enjoy the frilly blooms in your garden. Best Conditions for Iris. The Siberian iris quickly fills in spaces in a sunny border and works well at corners, too. PESTS: Siberians are more resistant to disease than other garden irises, but do suffer from scorch in those areas where this attacks other iris varieties. “Pseudata”-Species Cross Culture and Care. COLD CLIMATES: Spring is the best time to plant or divide, with August as second choice. Soil:Prefers lose garden soil enriched with organic compost. The mulch is also beneficial in reducing weed germination, thereby giving you more time to watch the plants grow and bloom! For the German iris, any good garden soil is suitable, provided it is well drained. They are low-maintenance and have beautiful foliage. A National Display Garden of Japanese Iris. Articles. Japanese Iris Culture Siberian Iris Culture Spuria Culture Louisiana Iris Culture Species/Bulb Iris Species Culture Bulbous Culture. Mulching: A mulch of 2 to 4 inches is recommended. When it comes to growing and caring for garden perennials, the Siberian Iris is one of the easiest flowers to plant in your garden. They all require a sunny location, particularly the bearded types. Thrips and iris borer can be controlled with a systemic insecticide (Orthene, Cygon 2E) following manufactures instruction. Siberian iris (Iris sibirica) thrives in wet, heavy clay soil, making it a top plant choice for those problem areas in your garden. Their graceful stems, blooms, foliage, and neat habit of growth make them the most adaptable irises for the perennial border and for landscaping. This will keep the soil cool, retain moisture, and suppress weeds. Siberian iris plants can reach as little as 12 inches (.3 m.) in height or grow taller than 3 feet (1 m.). Plant 2 inches deep in a prepared bed, 18 to 24 inches apart. Siberian clumps can grow undisturbed for several years, dividing being necessary when either the clumps become crowded or when vigor declines and blooms get smaller. They are very effective in naturalized settings and perennial borders. Cut back Siberian foliage only after it turns brown and withers in late fall. They are excellent in mixed borders where their grass-like foliage is an asset throughout the growing season. Use of gallon size pots is best for this procedure. Japanese iris (beardless) Siberian iris (beardless) Soil and Site The culture of iris is relatively simple compared to many other garden plants. All were chosen for their beauty, variety, and ease of growth. They are not immune to the iris borer in those areas where this pest gains the disgust of iris growers. Impressively, one mature plant can send out more than 20 stems of flowers at once, in a bloom season that lasts from late April to early summer. Ph should be slightly acidic but will survive in slightly alkaline soils also. Your best bloom will be on 2 to 6 year old plants. FERTILIZER: Requirements vary depending on your garden soil, but most successful growers use a balanced fertilizer, such as 10-10-10, or a 14-14-14. 0000008339 00000 n Siberian Irises readily adapt to most climates and soil types. In hot southern areas, protection from the mid-day sun is often a requirement. Their graceful stems, blooms, foliage, and neat habit of growth make them the most adaptable irises for the perennial border and for landscaping. MULCH: A mulch of organic material will benefit the plants in summer by conserving soil moisture and keeping the soil cooler, and it helps to prevent frost heaving, especially on new transplants. Many use foliar feedings monthly with a soluble fertilizer such as Miracid. Transplanting: Siberan iris can be transplanted almost anytime from spring until fall if you keep the plant moist and the temperatures are below 90 F and above 32 F for a month afterwards. Plant 2 or 3 inches deep in new soils that have been worked up and amended. Sub-series Chrysographes - The 40-chromosome group comprising eight species and their hybrids will be called “Sino-Siberian” iris. They bloom at the end of the Tall Bearded season. Sub-series Sibiricae – Throughout this culture sheet the 28-chromosome group comprising species I. sibirica, I. sanguinea, I. typhifolia, and their hybrids will be called “garden” Siberian iris. Japanese iris (beardless) Siberian iris (beardless) Soil and Site The culture of iris is relatively simple compared to many other garden plants. If you have trees or bushes near your garden, remember that borer moths sometimes lay their eggs in trees above the plants, so sometimes a second spraying is necessary after the grubs drop down from their hatching spot. Siberian Irises grow from 10" up to 48" tall. Siberian Iris (SIB) are a hardy beardless iris growing from 2-4 ft. in height. Blooms most readily, plant Siberian iris Culture reprinted from 'Basic siberian iris culture Culture iris. A hardy beardless iris growing from 2-4 ft. in height 4 to years. Effective in naturalized settings and perennial borders iris growing from 2-4 ft. in.. 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