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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place. Become an RHS Member today and save 25% on your first year. Learn all about irises - choose the best ones to grow, where to buy, where to plant and care advice from RHS ...
Sep 7, 2022 · More like this. Plant border irises from late summer to autumn, or spring. Plant them so the top half of the fleshy root, or rhizome, is above ground and exposed to sun. Iris sibirica should be planted with the top of the rootball at ground level. Plant moisture-loving irises in spring, summer, or autumn.
Iris (plant) Iris. (plant) Iris is a flowering plant genus of 310 accepted species [1] with showy flowers. As well as being the scientific name, iris is also widely used as a common name for all Iris species, as well as some belonging to other closely related genera. A common name for some species is flags, while the plants of the subgenus ...
The tall, beautiful iris flower, named after the Greek goddess who rode rainbows, comes in many magical colors. Despite its divine origins, this beautiful flower is rugged, reliable, and easy to grow. Learn to plant and care for irises for long-term success in your gardens. About Irises. More than 250 species make up the genus Iris.
Sep 12, 2018 · Irises are easy-to-grow perennials with flowers in nearly every color of the rainbow. Discover the most popular irises including tall bearded irises, Siberian irises, Japanese irises, Dutch irises and more. Learn all about planting and caring for iris flowers, plus find 11 elegant irises for your own garden.
Quick facts. Easy to grow. Flowers in May and June. Hardy. Happy in dry soils once they are established. Divide every three to four years for prolific flowering. Wide range of flower colours to choose from. Plant any time from March to mid-November.
Oct 6, 2023 · Add a 6-10-10 fertilizer to the soil two weeks before planting irises to emphasize phosphorus and potassium. At least two weeks prior to planting, work a 6-10-10 fertilizer into the soil. This ratio emphasizes phosphorus and potassium over nitrogen, encouraging floral development rather than vegetative growth.
Irises have a considerable power to colonise bare ground, so don’t be shy with the spade! 3. After splitting, cut back the early-summer leaves on the remaining plants, and cut or break off the spent flower stems. Finally, topdress the plants – at Doddington Hall, a dressing of 70–100g per square metre (2–3oz per square yard) of bone ...
How to Plant Irises. Here are the steps to plant irises: Prepare the soil: Loosen the soil to a depth of 12-15 inches (30-37 cm) and mix in compost or well-rotted manure. Plant the rhizomes: Dig a shallow hole 10-12 inches (25-30 cm) apart and 4 inches (10 cm) deep to cover the rhizome with 1-inch (2.5 cm) of soil.
May 19, 2023 · When planting iris, don’t plant them too deep—the tops of the rhizomes should be exposed and never covered by soil. After digging a shallow hole or trench, place the rhizomes inside with the roots facing downwards and spread the roots out in the hole. Backfill with the original soil and gently tamp it down.
