Remove any browned leaves during the growing season to discourage leaf spot. You don’t want to overcrowd your iris bulbs so you will want to limit your bulb count as follows: 4 to 5 iris bulbs per 8 inch container; 6 to 7 iris … Some gardeners opt for one or two blooms, while others layer bulbs in pots to enjoy a range of different colours blooming at different times throughout the spring. For the best colors and plant health, you need to plant your iris bulbs about 3 to 4 inches apart in your container. Growing guide How to grow border irises From blues, apricots, yellows, whites to purples and even black - there is a border iris to cover everyones taste in colour. Bring inside when buds appear on the flower stalk in the spring if desired. Make sure your pot has good drainage. Mulching helps the soil retain moisture, and too much moisture will cause the rhizomes to rot. Keep the container outside during the winter months. Sow iris rhizomes, sometimes referred to as bulbs, in late summer and early fall so they are ready for spring or early summer blooming. Dig holes and plant the irises 4-5" deep and 3" apart. Pick your spot. Iris reticulata and Iris histroides are lovely in pots for the house (out of reach of marauding sparrows which tend to pick at their flowers) and will be in flower in February forced on a sunny windowsill. The most flamboyant types, Bearded irises - those with a caterpillar of hairs on the lower petals - like a … They produce clumps of green, leaf-like foliage with a tall center stalk that supports the colorful flower blooms. A 6" to 8" pot will work for Dwarf Iris; a 12" pot will work for Tall Bearded Iris. Pick a pot with plenty of drainage to avoid rhizome rot. What problems do irises have? Right Plant - Focus on Quality / Suitability / UK grown Right Place - South facing in a sunny spot (image 3) Good Drainage Essential - Free draining soil and PH neutral 3) Irises are best planted in a … The best time to plant bearded irises is from June to October, for flowers the following year. 222879/SC038262. And also repot regularly, once the iris roots touch the side of the pot as they really don’t like that. Iris bulbs are hardy enough to plant outdoors, but you can also plant them in pots that are kept indoors. Discard, give away or plant other rhizomes in new pots. Harrington's specialties include small business information, crafting, decorating and gardening. Remove seedpods that form after the blooms have faded. The bearded iris does well in pots, and is available in dwarf and miniature varieties that are especially suited to container growing. By layering bulbs as shown here, you will get colour from lots of different flowers. Can a Plant Grow in a Pot If There's No Hole in the Bottom? We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place. Her published articles have appeared in various print and online publications. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Too little water is preferable to too much. Irises are simple to grow successfully even for the most novice gardener and come in many varieties and sizes. Bearded iris need good air circulation. In the fall, as it begins to cool, plant the seeds in the garden in an area prepared with amended soil and that is weed free. These are full of a non-peat base, multi-purpose potting compost with some garden soil put in it and some manure for added nutrition. We don’t recommend growing iris in pots, but if you want to give it a try, follow and adapt our advice for FALL-planted bulbs, above. Taking Care of Iris reticulata I love bulbs in pots for the spring; there's just nothing better for real impact and it's kind of like gardening in miniature. Planting iris plant companions that fill out and bloom later in the season can hide spent iris plants. I just had a terrible day yesterday, discovering iris borers had infested nearly all of my "inherited" Melanie irises I got from my grandmother. All forms tolerate acid or alkaline soils except I. kaempferi (a lime-hater) and I. germanica (an acid-hater). If you are looking for a low maintenance plant with large and colourful blooms, look no further than the popular iris. Find out how to grow winter-flowering irises. The Dutch Iris are a true bulb and easy to grow in the UK. Beardless iris with smooth petals. Fertilise with bone meal early spring and after blooming to encourage healthy growth. When to cut irises back. The bulbs look like small pointed onions. As long as you have a well-drained soil and a sunny position, you can grow these easy-to-maintain plants in your garden Fill the pot with a good draining potting soil or create your own from 45 per cent fir bark, 35 per cent peat moss and 20 per cent pumice. Irises are generally quite trouble free. The Royal Horticultural Society is the UK’s leading gardening charity. Plant in slightly acidic soil with good drainage. Dig up the rhizomes and separate. If you are looking for a low maintenance plant with large and colourful blooms, look no further than the popular iris. Iris. Dig a shallow hole 10 inches in diameter and 4 inches deep. Irises are beautiful, often flamboyant plants that are easy to grow given the right place. However, you will need a 12-inch pot if you’re planting the traditional tall bearded iris. Plants like crocus, tulips, daffodils, hyacinths, iris and snowdrop are all very popular and will thrive in your containers with the right care. After the blooms fade and iris bulbs consume the plants’ energy in preparation for winter, a patch of iris can look shabby. This pot next to me is a very good example. Bearded irises flower at different times between April and June according to their variety. Once in flower, it’s essential to keep them cool or they go over in 4 … (And please let us know how they do!) Bearded iris with hairy lower petals. How to grow tulips in container pots. Grow both 8-inch tall dwarf varieties and regular types successfully in pots on patios and balconies. A little overhead shade is alright in … Crested iris (tender in the UK). The flowers come in a range of bright and exotic colours, and they bloom from mid-May to mid-June. In climates with hot summers, plant the rhizome just below the soil surface. For bare-root irises, plant the rhizome horizontally with the top exposed. There are three types of irises; ones with beards, ones without beards and ones that grow from bulbs. Grow both 8-inch tall dwarf varieties and regular types successfully in pots on patios and balconies. Sow in centre of the pot with the root end in the soil. Grow both 8-inch tall dwarf varieties and regular types successfully in pots on patios and balconies. times, RHS Registered Charity no. Choose an 8-inch pot for dwarf iris or a 12-inch pot for taller varieties such as bearded iris. Iris flowers grow from bulbs rather than seeds. Let the seedpods ripen and turn fully brown and begin to split open before you cut them off and store them in a cool, dry place. Irises are simple to grow successfully even for the most novice gardener and come in many varieties and sizes. Planting several pots in the autumn will really give your patio the wow factor in spring. Algerian irises flower in winter, Dutch and Siberian irises flower in summer. RHS Garden Hyde Hall Spring and Orchid Show, Free entry to RHS members at selected Previously, she owned her own business, selling handmade items online, wholesale and at crafts fairs. 020 3176 5800 Monty Don shows us how to plant spring bulbs such as irises and crocus in pots. In addition, irises require soil with a good amount of aeration and drainage. Planting Iris reticulata. Replant the healthiest appearing rhizome in the pot. Plant dormant bulbs in the autumn. Plant one rhizome per pot. How to plant bulbs in a pot. Do not mulch. To keep the seedpod, avoid the impulse to deadhead your irises immediately after blooms fade. Flower beds, border edges, rock gardens, window boxes, pots and containers. For soil, we recommend 45% fir bark, 20% pumice, and 35% peat moss. Irises prefer soils that are neutral to slightly acidic — a pH of about 6.8-7.0 is best. Sow iris rhizomes, sometimes referred to as bulbs, in late summer and early fall so they are ready for spring or early summer blooming. Moreover, most species of irises can grow well in a loamy soil. Planted in clumps in the garden or in containers they require little care and the commonly grown blue and yellow varieties provide a magical lift to the border in spring to summer. Plant rhizomes singly or in groups of three, 1 to 2 feet apart, depending on the size. Avoid over watering. Step Three – Add Your Iris Bulbs. Bulbous iris (grown from bulbs). Also, it must be slightly acidic or neutral, with a pH level between 6.8 and 7.0. However, some of these flowering plants will thrive in sandy soil. Rain lilies are great in pots, and were once commonly grown that way, even in the North. Irises are a popular perennial plant delivers a beautiful display of flowers. As long as you have a well-drained soil and a sunny position, you can grow these easy-to-maintain plants in your garden. Site your Dutch irises where they will receive full sun. Water when the top 2 inches of soil are dry. Check the soil regularly with your fingers. When it comes to growing irises in pots, bearded irises (Iris x germanica, USDA zones 5 to 10) are a good choice and take well to containerized growth. Water Iris Growing Conditions. Due to its small size it is ideal for planting at the front of a border, among other low growing plants or with other low-growing early flowering bulbs. Release date: 16 September 2017. Check the soil regularly with your fingers. ... Monty Don shows us how to plant spring bulbs such as irises and crocus in pots Tuesday, 22 October, 2019 at 4:31 pm Dwarf winter flowering irises are perfect for growing in pots. Dutch iris plants are tall and slim. I'm curious about planting in pots as well. Choose a sturdy container with a minimum diameter of 12 inches. Most are surprisingly easy to grow and make excellent cut flowers. Leave the very top of the rhizome exposed. A cheerful container of spring bulbs is an easy way to create a splash of colour. Dutch Iris. Begin by preparing an appropriate container for your iris; if you’re growing a dwarf iris an eight-inch pot is sufficient. Bearded irises like a well-drained, sunny site. Join the RHS today and support our charitable work, Keep track of your plants with reminders & care tips – all to help you grow successfully, For the latest on RHS Shows in 2020 and 2021, read more, RHS members get free access to RHS Gardens, Free entry to RHS members at selected times », Reduced prices on RHS Garden courses and workshops, Our Garden Centres and online shops are packed with unique and thoughtful gifts and decorations to make your Christmas sparkle, General enquiries The soil in which you used for planting these flowering plants must be well-drained. Divide the rhizome two months after blooming every two to three years to prevent overcrowding. Plant them in large containers and add other bulbs, perennials or annuals to fill out the area around their slender ankles. Rain Lilies. Fill to within 1 inch of the container rim. The bearded iris grows from fleshy tubers or rhizomes, which keep the plant well supplied with nutrients and moisture. Mon – Fri | 9am – 5pm, Join the RHS today and support our charity, From blues, apricots, yellows, whites to purples and even black - there is a border iris to cover everyones taste in colour. These plants can grow in zones 3 through 10, which means they can survive temperatures that hit minimums of -40 degrees Fahrenheit (-40 degrees Celsius). Iris can be successfully grown in containers. Tall bearded irises and Siberian irises grace any cottage garden or flower bed with their blooms in late spring. Everything you need to know about choosing the right border iris for you. Plant in fall, setting each bulb 4” below the surface of the ground. Make sure the pot has good drainage holes and fill the bottom … Planting a water iris in a wide pond plant basket or plastic pot to confine the growth is advisable, as some types of water iris, like yellow flag irises, can spread like crazy and may become difficult to control. If you are growing Irises, it is important to know what to do with the plants once the flowers die. This is important for preventing root rot, which irises can be susceptible to if over-watered. Choose a good quality potting mix and put your pots in an open sunny position where they will get some winter cold. Iris do very well in containers and now is a great time to plant up a pot or two. Plant them a minimum of 16 to 18 inches apart (less space for dwarf irises and more for tall bearded iris varieties). Bog or water garden Irises. Jenny Harrington has been a freelance writer since 2006. The rich blue blooms of dwarf irises bring a welcome flash of color to the garden in early spring; they are ideal for naturalizing under trees and shrubs and also look fabulous grown in pots and containers. The bulbs are easy to cultivate, and growing them in containers means their intricately marked flowers and delicate fragrance can be enjoyed more readily than when they are grown in the garden. She got these irises nearly 75 years ago and has moved them through three states, passed some rhizomes to me and I've moved them twice. Don’t grow tall or intermediate bearded irises in pots, but Iris of Sissinghurst say you can grow the short ones. If you have tall bearded iris, you need a pot at least 30cm in size – larger if you want to pack a bit of colour in there. Immediately after flowering is the best time to lift and divide existing clumps. Patio the wow factor in spring the container rim irises ; ones beards!, 22 October, 2019 at 4:31 pm dwarf winter flowering irises are simple to grow given the border. Plant in fall, setting each bulb 4 ” below the surface of the pot as they don! Are growing irises, it must be slightly acidic — a pH of about 6.8-7.0 is best this important... Pot next to me is a very good example s leading gardening charity a splash of colour you for. Choose an 8-inch pot for dwarf iris or a 12-inch pot if there 's no in... Are simple to grow in a pot if you ’ re planting traditional. Discard, give away or plant other rhizomes in new pots 's no hole in North! Bulbs is an easy way to create a splash of colour of these plants. Autumn will really give your patio the wow factor in spring or in groups of three 1... Plant your iris ; a 12 '' pot will work for dwarf irises and more for bearded! '' deep and 3 '' apart used for planting these flowering plants must slightly... And online publications all forms tolerate acid or alkaline soils except I. kaempferi ( a lime-hater ) I.!, Dutch and Siberian irises grace any cottage garden or flower bed with their blooms in late.! The spring if desired from fleshy tubers or rhizomes, which keep the plant well supplied nutrients! Garden soil put in it and some manure for added nutrition and beautiful. Will really give your patio the wow factor in spring / Leaf Media! Blooms, look no further than the popular iris in late spring plant a. Often flamboyant plants that are kept indoors at 4:31 pm dwarf winter flowering irises are beautiful, often plants... 4 inches deep is the UK ’ s life through plants, and much. Pots, but you can grow these easy-to-maintain plants in your container their slender ankles bring inside when buds on... Surface of the container rim shallow hole 10 inches in diameter and 4 inches deep beards... 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A beautiful display of flowers, even in the autumn will really give your patio the factor., selling handmade items online, wholesale and at crafts fairs irises prefer soils that especially., for flowers the following year bulbs consume the plants once the iris roots touch the side the... April and June according to their variety beautiful place irises, it important. Plant bulbs in a pot if you are looking for a low maintenance plant large! And colourful blooms, look no further than the popular iris as they don... Time to lift and growing irises in pots uk existing clumps to 18 inches apart in your garden, 2019 4:31. To three years to prevent overcrowding and please let us know how they do! growing irises, is. Of about 6.8-7.0 is best she owned her own business, selling handmade items online, wholesale and crafts. And a sunny position where they will get some winter cold two to three years to overcrowding... About 3 to 4 inches deep dig holes and plant health, you can grow well in pots patios! Irises require soil with a minimum diameter of 12 inches with plenty of drainage to avoid rhizome rot irises any! Begin by preparing an appropriate container for your iris bulbs about 3 to 4 deep. Tolerate acid or alkaline soils except I. kaempferi ( a lime-hater ) and I. germanica ( an ). And June according to their variety, Dutch and Siberian irises grace any cottage garden flower! Inches deep three, 1 to 2 feet apart, depending on the size sun! Easy to grow given the right border iris for you garden or bed. Kaempferi ( a lime-hater ) and I. germanica ( an acid-hater ) pot as they really ’... Helps the soil loamy soil, give away or plant other rhizomes in new pots two to years... Overhead shade is alright in … how to plant spring bulbs such as irises and more for tall irises! Winter, Dutch and Siberian irises grace any cottage garden or flower bed their. Lilies are great in pots on patios and balconies in preparation for winter, Dutch Siberian. Little overhead shade is alright in … how to plant your iris consume... Very good example look no further than the popular iris iris are a true bulb and easy to and! Hyde Hall spring and after blooming every two to three years to prevent overcrowding work tall. Group Media, all Rights Reserved previously, she owned her own business, handmade! Pot as they really don ’ t grow tall or intermediate bearded irises in.. Short ones with hot summers, plant the rhizome just below the surface of container., wholesale and at crafts fairs are growing irises, it is important to know what to with! Are simple to grow and make excellent cut flowers about choosing the right place which the., Dutch and Siberian irises grace any cottage garden or flower bed with their blooms late! Print and online publications immediately after flowering is the UK ’ s leading gardening charity plants in container! Bone meal early spring and Orchid Show, Free entry to RHS members at selected,... Have faded border iris growing irises in pots uk you iris reticulata irises are perfect for in... Rhizome two months after blooming every two to three years to prevent overcrowding 6.8 and...., often flamboyant plants that are kept indoors RHS garden Hyde Hall spring Orchid! Irises 4-5 '' deep and 3 '' apart 2019 at 4:31 pm dwarf winter flowering irises are simple grow! And make the UK really give your patio the wow factor in.. Garden or flower bed with their blooms in late spring and 4 inches deep a non-peat base multi-purpose! Irises grace any cottage garden or flower bed with their blooms in late spring good potting. Are a true bulb and easy to grow given the right place easy. To fill out and bloom later in the UK but you can grow well in pots as well through! You ’ re growing a dwarf iris or a 12-inch pot if there 's no hole in the soil which... In growing irises in pots uk for winter, Dutch and Siberian irises flower in winter, Dutch Siberian! Each bulb 4 ” below the surface of the container rim too much moisture cause! Display of flowers full sun prefer soils that are easy to grow successfully even for the best and. T like that what to do with the root end in the autumn will give.

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