My next thought is that something may be going on underground. Hi Christi, You have a mystery on your hands! Thank you! Other common names fairy iris . You’re very thoughtful to want to share with your North Carolina family, Felcie, but I’m not sure they would survive the winters in zone 7. An overabundance of nitrogen could also be the culprit. Dietes (Dietes grandiflora) also known as Wild Iris, Butterfly Iris, Fairy Iris, Spanish iris is a clump forming, rhizomatous perennial.It is part of the Iridaceae family and is native to South Africa. Dietes grandiflora is able to grow easily in very poor soil with little water and can be useful when plants need to be established quickly, for example, after earth moving has taken place. First, water the clump you want to divide. Briza Publications : Pretoria, Pienaar, K. 1985. Hi, I am in zone 13. cutting the entire plant back to ground level with hedge clippers, Add a Dash of Style to Your Porch or Yard with Bold Inflatable Furniture, The Complete Guide to Dividing Perennials, Top 10 Blueberry Varieties to Grow for Home Harvests, Succession Planting: How to Grow Crops for a Continual Harvest, Good Riddance, Rodents: Say Hello to Gopher Plant, 15 of the Best Onion Varieties to Grow at Home. Agapanthus Armeria Astilbe Bergenia cordifolia Coreopsis Daylily Delphinium Dianthus deltoides Dietes Gaillardia x grandiflora Geum chiloense Heuchera Hosta Iberis Lobelia cardinalis Lychnis coronaria Monarda didyma Santa Barbara daisy Stachys Tulbaghia violacea Yarrow. Click to see full answer Then, how do you propagate dietes grandiflora? It grows naturally along the southern and eastern coastal areas of the Eastern Cape and southern Kwazulu-Natal where it may be found in full sun or partial shade at forest margins, or in the shelter of taller shrubs on exposed slopes facing the sea. Dietes Growing Guide. Thanks for your question, Ken. How do you care for your bicolor or African irises? After you divide the plants, remove any unhealthy material and trim back the leaves to about 3 inches before planting. They look very healthy and continue to thrive, but now in our third season we have not seen a single bloom! It was very green and full and now it is brownish and does not look good. Batten, A. The clump forming sword like foliage produces attractive flowers which are large and white with yellow and purple centres, flowering in abundance during the warmer weather. Thought I’d take some to relatives if they would survive their winters. Dietes iridioides flowers throughout the warmer month of the year. Dietes grandiflora is a perennial, evergreen plant which grows  up to 1.5 m, forming large clumps. across (10 cm), borne on erect, slender stalks atop clumps of long, upright, stiff, sword-like green leaves. Just so we’re on the same page about what plants we’re talking about, let’s get some confusing nomenclature business sorted out. I have several Bicolor iris plants in my yard that have grown large and are looking tired. We do not have deer. This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. It’s a good idea to thoroughly water these normally drought-tolerant plants after a haircut, and offer a balanced fertilizer with equal amounts of nitrogen, phosphorous and potassium to help promote new growth. Creative Gardening with Indigenous Plants - A South African Guide. Wild iris, or butterfly plant, as it is also called, is a delight to grow. Iris borers can cause iris foliage to wilt,… Read more ». Dietes flavida. Family Iridaceae . We’ll look at the taxonomy of these plants, and then get down to brass tacks about whether you should be cutting them back. Should i cut back the leaves when i divide the rhizomes or do i leave them long. Should i cut back the leaves when i divide the rhizomes or do i leave them long. I’m not sure where you’re located, but division for rhizomes like these should typically be done in the late summer, or about a month after they’ve finished blooming. Wild Flowers of South Africa for the Garden. Hgt/Wdth in 7/10 yrs: 100cm x 60cm. The blooms are white marked with yellow and violet and appear in flushes in spring and summer. The genus for this group of rhizomatous plants is Dietes, which is a part of the family Irideceae. Does the area get full sun, Merrill? Synonyms Dietes grandiflora 'Reen Lelie' . They are about 10 years old and i think i need to dig them up and divide them. All this is to say there are almost as many names for these long-leafed beauties as there are stars in the sky, so don’t be dismayed if you call them tomato and your neighbor calls them toe-mah-toe. Others are blooming like crazy, but mine are not. Here is more about what we do. One of the great things about our Plant of the Week is that it is virtually unkillable. 7th ed. Do you think it’s been getting enough water? Genus Dietes are rhizomatous evergreen perennials forming loose clumps of leathery, linear or sword-shaped leaves, with erect stems bearing a succession of short-lived, iris-like flowers with 3 large outer segments and 3 small inner ones, in spring and summer We occasionally link to goods offered by vendors to help the reader find relevant products. After cutting the entire plant back to ground level with hedge clippers, the plant will joyfully return to life, come springtime. Flowers of Southern Africa. The plant grows from underground rhizomes. I’m wondering if they do well in North Carolina, zone 7. We have two Peacock Flower plants (Dietes bicolor) for over a year (now about 4’) and have NEVER had a flower. Plant Details . You might wonder if it’s also necessary to cut back grassy irises such as bicolor (Dietes bicolor) or African (D. vegeta) — plants that also sport the long, slender leaves common to grasses. It will continue to produce many more blooms. Fairy Iris, Groot Wilde-Iris (Afr. COPYRIGHT © 2020 ASK THE EXPERTS LLC. Hi Kandi, Sorry we are a little slow getting back to you on your question. This well known indigenous iris is commonly grown in gardens and used in large landscapes throughout the country. Corms are a different type of underground plant stem, one that’s more bulbous. What is Dietes? Cutting them back is not required for them to bloom. In spring and summer, it produces flowering stems carrying iris-like, white flowers, marked with mauve and orange. Dietes Grandiflora – Wild Iris is a drought resistant plant forms a clump of stiff, narrow, dark green leaves. This plant is occasionally called the "Fairy Iris" because the fragile white petals not only look like fairy wings, but also have a tendency to disappear mysteriously overnight! I notice on the esplanades they are blooming. Dietes were once called Moraea (a closely related group), but were separated because Dietes have a rhizome, whereas Moraea have a true corm. Dietes Grandiflora. Thanks so much, that is what I wanted to hear. The individual flowers do not last more than a couple of days (so are of no use in a vase) however, the plant bears so many flowers during the peak period that the plant looks most striking. Have several large healthy bicolor that need separating. Dietes grandiflora. Many of us are accustomed to cutting back our ornamental grasses in late winter to get rid of dead leaves and promote fresh, attractive growth. Also, it really prefers part shade to full shade, and may not ever flower in full shade. They cut back the ones in the esplanades about Christmas. How to grow dietes as ground cover. The builder planted these iris every where in the subdivision. All of them are ‘lying down’. Check the planting area to make sure it has good drainage. I have had similar issues with coaxing these to bloom in the past in shaded areas of the garden. I live in Corpus Christi. There are no brown or yellow leaves, just the plants are all bending to the ground. Some of these links may be affiliate in nature, meaning we earn small commissions if items are purchased. Eliovson, S. 1984. The time to do this job is fall or winter. Grow South African Plants Struik Publishers : Cape Town, Pooley, E. 1998. Tell us in the comments section below! For optimal results plant in soil containing plenty of compost and water regularly. Least Concern (LC), Dietes grandiflora is not threatened. Dietes grandiflora. Dietes grandiflora, the large wild iris or fairy iris, is a rhizomatous perennial plant of the family Iridaceae with long, rigid, sword-like green leaves. Shake off the soil around the roots and, using sharp secateurs, divide the plant up, taking care to keep each little plant intact. Enrich the soil in the planting bed with some compost and Yates Dynamic Lifter Soil Improver & Plant Fertiliser before planting. I’m going to offer some ideas for you to consider – maybe one of them will help you solve it. Is that what I should have done in order to get blooms? Use it as a lovely filler plant between other perennials, also in mass plantings and as borders along difficult pathways. They will recover quickly. Seed pods are formed after flowering on the stems where the flowers were. The long, rigid, sword-shaped leaves, held in a fan shape, are dark green and may reach up to 1 m long and 15-20 mm wide. Uncredited photos: Shutterstock. However, for best results and most flowers, plant Dietes grandiflora in full sun or light shade in well composted, well drained soil and water well in summer. The genus is closely related to the African genus Moraea and to the widespread Northern Hemisphere genus Iris.. Fairy Iris (Dietes grandiflora) Dietes grandiflora is also known as “Fairy Iris” because the fragile white petals, which resemble fairy wings, have a tendency to magically disappear very quickly! We’ve been in our house 3 years. These two stems look like one has been snipped and the other fell off naturally. I also rescued a small flowering shrub that had started sprouting new leaves on the trash heap after a recent downpour. Sharon TurnerWalter Sisulu National Botanical GardenDecember 2001, SA Distribution: Eastern Cape, KwaZulu-Natal, Flowering season: Spring, Early Summer, Late Summer, Aspect: Full Sun, Morning Sun (Semi Shade), Afternoon Sun (Semi Shade). Dietes grandiflora or "Wild Iris" is extremely hardy, perennial, evergreen, clumping plant with green, sword-like foliage. Common names: large wild iris, fairy iris (Eng. ... Dietes bicolor. Pruning photo by Gretchen Heber, © Ask the Experts, LLC. I think you are right that deer aren’t the culprit because this plant is toxic and deer aren’t supposed to bother it – it’s supposed to be unpalatable to most animals. Great for mass planting as ground cover or a border. Then, using a … Divide congested clumps in spring or autumn. Interesting facts about Dietes: Dietes and Related Genera. Got Dietes Bicolor in spring in a 3.5-gal pot and have it in a full shade on my patio. Help please! This is a popular, easy-to-grow garden plant which will grow under most conditions. After you try moving it to a location… Read more ». There is a very similar species known as Dietes iridoides and I am not really sure how to tell them apart.. The flowers are borne in masses at certain periods — often after rain in summer. ), Isiqungasehlati (Zulu) Full Sun. If you are looking for a tough, reliable.low maintenance plant, then Dietes are one to consider. Ideal for growing under trees, in rockeries, and near water features. Cut sharply and cleanly straight across the leaf blade, near the crown of the plant. Does well in hot and dry conditions. The flowers attract lots of bees and other pollinators. But I’m not surprised they didn’t bloom the first year. However, for best results and most flowers, plant Dietes grandiflora in full sun or light shade in well composted, well drained soil and water well in summer. It progressively got worse. She’s never met a succulent she didn’t like and gets really irritated every 3-4 years when Austin actually has a freeze cold enough to kill them. The attractive flowers, held on erect slender stems about 1 m in length, are large (about 100 mm across) and are white with yellow nectar guides on the outer tepals and violet central segments. ALL RIGHTS RESERVED. Late spring-summer temp 100-115 so I figured it will just die in full sun so kept it in a shade. Dietes grandiflora (large wild iris) is a rhizomatous perennial from southern Africa with long, rigid, sword-like green leaves belonging to the Iridaceae family (ht to 1m). The blooms are white marked with yellow and violet. I planted my bicolor a year ago, about Feb 2019 and have not had a single bloom. Grandiflora means 'large flower'. Stunning iris-like, white flowers with centre markings of yellow and lilac adorn this plant during Spring and Autumn. They appear on branched stalks over an incredibly long season, extending from spring to fall and sometimes well into winter in mild climates. . Frandsen Publishers : Sandton. On an as-needed basis, cut brown or yellow leaves back to the base of the greenery with pruning shears. A former garden editor for a daily newspaper in Austin, Texas, Gretchen Heber goes through entirely too many pruners and garden gloves in a year’s time. Any ideas? These plants were once classified in the genus Moraea but were kicked out because they have rhizomes, as opposed to Moraea, which have corms. Please help. They are about 10 years old and i think i need to dig them up and divide them. Login to add your Comment It grows up to 1,5 m tall and makes an excellent garden plant for both small and large gardens, including coastal gardens. To Gretchen, nothing is more rewarding than a quick dash to the garden to pluck herbs to season the evening meal. W.R.Walker Family Trust : Durban. Dietes grandiflora has the same growth habit but much larger flowers than D. bicolor - they're white with yellow markings on the tepals (actually … I've actually got one growing in a large terracotta pot which looks pretty good too. Overwatering could be to blame- have you tried digging up some of the rhizomes to check on their condition? And it’s definitely time for a happy dance when she’s able to beat the squirrels to the peaches, figs, or loquats. It can be effectively used in mass plantings, but is also effective in mixed plantings or used as an accent plant alongside a pond or some steps. Or did they just fall off like that and it’s the first I’ve noticed. We’ve never had this happen before and we’ve had them for years. See our TOS for more details. The plants are both frost and drought hardy and will grow in either sun or shade. Am I wrong? I love plants and it was like walking by a box of… Read more », Free plants! I came home 2 days ago and ALL of my flowers are GONE. Do you have another name for them? It might be possible that a person came along and snipped your flowers off – one of my… Read more ». There are 6species of Dietes — five of which occur in South Africa — and one on an island in the Tasman Sea (between New Zealand and Australia). How to propagate Dietes. The Dietes Iridioides is commonly grown in Australia other species include Dietes Bicolor, Dietes Moraea, Dietes Iridioides, Dietes Robinsoniana, Dietes Vegeta and Dietes Grandiflora these plants are so tough you will find them planted around the streets, in the middle of roadways and in shopping centres above all it grows in most areas in Australia and are not Poisonous. Sun or … Please let … So, in the midst of carefully pruning your crape myrtle trees and tending your winter lettuces, don’t forget to have a look at your grassy irises and assess whether they could use a little touch-up clipping, or perhaps even a wholesale cut back. 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