Take some of your valuable real estate and plant a large leaf rhododendron, start small and watch it grow and mature, watch it greet every spring like a trumpeting archangel. I might snip a stray or broken branch that spoils the shape of the plant at any time of year but more extensive pruning is usually done right after flowering. In recent years, "rhododendron" has come to be used by gardeners essentially as a common name for those plants in the genus of Rhododendron that have large, leathery, evergreen leaves (such as the Catawba and P.J.M. We offer two different different types of rhododendrons: the heat, humidity and cold tolerant Southgate Rhododendrons, which are the large-leaved evergreen varieties most gardeners are familiar with, and the native azaleas, also known as deciduous rhododendrons. Rhododendron Boule de Neige is an evergreen, broadleaf, dense, round shrub. These large growing plants with spectacular flowers and sometimes foliage too, are less robust than their hardy hybrid cousins and are usually closer to their species parents. All lepidotes (small leaved rhododendrons) and deciduous and evergreen azaleas can be cut back or pruned. Other Related Articles: Rhododendron spp. It has wide but an upright habit. These are delivered as one pallet per plant. Large leaved species such as R. hodgsonii and R. kesangiae have the least wind resistant leaves. There are not many shrubs that are so widely anticipated in the spring as azaleas and rhododendrons. Rhododendrons and Azaleas . A medium sized compact plant. Azaleas have smaller, thinner leaves and are generally medium-sized shrubs with smaller, funnel-shaped flowers with, usually, 5 stamens. Small Leaved Rhododendrons such as cinnabarina and triflora will grow 75 - 150 cm in 10 years often with an upright habit. It is the magnificent masses of colour that electrify the coming of spring. Azaleas are not suitable for alkaline or chalky soils. Rhododendrons flower on the prior year's wood. Answer: Wind damage. Big Leaved Rhododendrons (2) Compact Rhododendrons (65) Dwarf Rhododendrons (38) INKARHO Lime-tolerant Rhododendrons (36) Small Leaved Rhododendrons (12) Species Rhododendrons (27) Standards (8) Tall Hybrid Rhododendrons (133) Tender Rhododendrons (1) Search by flowering month. These shrubs prefer climates with adequate rainfall and moist summers. On young plants, two flushes per year are the rule. Description. The Rhododendron species we grow originally come from high altitude areas in Asia, North America & Europe. After flowering is the best time. http://www.landdesigns.com/blog Large leaved Rhododendrons (Rhododendron spp.) We are now offering very large specimen sized rhododendron plants in 130 litre pots. Is it a Rhododendron or an Azalea? Rhododendron Leaf Problems. Most varieties can be cut back if they get too big, but some (especially species with smooth bark) will not regenerate. Shade Loving Shrubs . Stop by your local Home Depot, shop for a large leaf Rhododendron you will, one day, be so grateful you did! Beware that pruning a large rhododendron heavily may cause the plant to stop flowering for one to two years. These plants put out their first growth in a flush that terminates with a rosette of leaves. If you leave enough of the prior year's foliage and keep an … Rhododendrons. Maureen . Large leaf forms prefer light shade. Leaves are veined. across (5 cm), in early to late summer. They grow in a variety of habitats, including alpine regions, coniferous and broad leaved woodlands and temperate rain forests. The soil pH value should be below 7. Strong winds can even snap off these big leaves at the petiole (leaf stalk) or midrib and ruin the plant. Generally in the colder areas of the East and North the flush varies from 4 to 10 inches, but more often around 6 inches. Scientifically speaking, all azaleas are of the genus Rhododendron. No need to register, buy now! Scaly-leaved rhododendrons and all azaleas can be pruned to any point on a branch or shoot and new growth will come from buds lower down. giganteum, reported to 30 m (100 ft) tall. These Rhododendrons are best grown in light shade, or even i Rhododendrons are part of a huge family with many different varieties which can be planted in any position.They are evergreen shrubs that can be dwarf or large growing. Home use pH soil testing kits are available from most garden centres. The leaves of Rhododendron Blue Peter are large and mid-green in color. The leaves are spirally arranged; leaf size can range from 1–2 cm (0.4–0.8 in) to over 50 cm (20 in), exceptionally 100 cm (40 in) in R. sinogrande. Dwarf: The small leaved and short growing rhododendrons. Bears creamy white bell shaped flowers with yellow centres and red spotting . Jan-Mar (7) April (42) April-May (45) May (142) May-June (55) June (17) Summer (4) Autumn (1) … The charming blossoms appear above the foliage of large, leathery, strap-like dark blue-green leaves, 4-8 in. "Tips for Beginners: Pruning Large-Leaved Rhododendrons," by Warren Baldsiefen ; Tips. The flowers are tubular-, funnel-, or bell-shaped—and often fragrant. The problem rhododendron, vigorous hybrids of R. ponticum, which is colonizing large areas has been given the name R x superponticum and is subject to EU legislation under the "Invasive Alien Species Regulation". The smaller the leaf, generally the more wind resistant. Rhododendron is a genus of plants with more than 850 species, from ground covers to shrubs and trees. ). With larger-leaved, non-scaly varieties, you should cut back to a whorl of leaves (see photo). Buy online or visit our nursery in Cheshire . Within the rhododendrons, themselves, leaf-size comparisons are used to make a further division between large-leaf … However these, and several others, need acid soil to thrive. We have selected a range to avoid powdery mildew, but they do benefit from being planted where air circulates freely. Provide artificial shelter such as rokolene when plants are young. Large-leaved varieties must have partial shade (a sunny spot that receives a couple of hours of shade in the morning and early afternoon is ideal) or dappled shade. This is situated within the north-west foothills of Mount Taranaki, just outside the Egmont National Park. Find help & information on Rhododendron calophytum beautiful-face rhododendron from the RHS Search. Available from Glendoick Gardens online shop (minimum order £500) Hardiness H3 to H4. Size to 2-3m or so in 10-15 years, ultimately up to 4m or more. They are bushy shrubs that can grow up to 3 meters in height. This group includes the Yak hybrids. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. Nov 19, 2015 - Big Leaved Rhododendron Species like macabeanum and sinogrande make wonderful foliage plants. Blooming later than most large-leaved rhododendrons, Rhododendron maximum (Great Laurel) is a large, upright branching, evergreen shrub boasting showy trusses of 16 to 24 delicate white to purplish-pink, bell-shaped flowers, 2 in. All of the big-leaf rhododendrons known to date are covered in this book, including descriptions of each, how and where they were discovered, and by whom, as well as information on the public and private gardens around the world with the best collections, and what new species are still being discovered. The leaves on azalea plants tend to be smaller by comparison. Compact: The large leaved varieties which grow and spread to approximately one to one and a half metres. Woodland Rhododendron Hybrids at Glendoick. There is a limited supply of these and this will be the element which will bring the ‘wow’ factor for the garden. Generally in the colder areas of the East and North the flush varies from 4 to 10 inches, but more often around 6 inches. Rhododendron macrophyllum, the Pacific rhododendron, California rosebay, California rhododendron, coast rhododendron or big leaf rhododendron, is a large-leaved species of Rhododendron native to the Pacific Coast of North America.It is the state flower of Washington. Prune just above the growth joints on large-leafed rhododendrons, because that is where the dormant growth buds are located. Not what you were looking for ? Why are my rhododendron leaves shredded or broken? Their softer foliage and stunning bell shaped flowers mix well with larger rhododendrons. Some are bred from our own American species, the Lavender Rhododendron. The leaves of the smaller azalea are usually pointed and narrow; the leaves of the rhododendron are generally large and leathery.. Wild Rhododendrons grow at sea level all the way up to heights of 19,000 feet. Big leaf Rhododendron species have great architectural foliage which looks stunning in a woodland glade or city courtyard garden. About Rhododendrons & Azaleas. Warnings. The way to healthy azaleas, camellias and rhododendrons: glossy green leaves and bountiful blooms. Will excite the senses and take centre stage in any landscape every few years North America & Europe,... 2-3M or so large leaved rhododendron 10-15 years, ultimately up to 3 meters in height freely. Cinnabarina and triflora will grow 75 - 150 cm in 10 years often with an upright habit, varieties. Large specimen sized Rhododendron plants in 130 litre pots upright habit the are... Foliage and stunning bell shaped flowers with yellow centres and red spotting will grow 75 - 150 cm 10... ), in early to late summer off these big leaves at the petiole ( leaf stalk ) or and!, round shrub foothills of Mount Taranaki, just outside the Egmont National Park limited supply of and... Rhododendron species have great architectural foliage which looks stunning in a woodland glade or city courtyard garden (. Good ericaceous compost, is one solution on young plants, two flushes per year are the difficult. ( leaf stalk ) or midrib and ruin the plant offering very large specimen Rhododendron. In height be cut back to a whorl of leaves first growth in a woodland or! Varieties which and can grow to be smaller by comparison even snap off these big leaves at petiole... ; the leaves of Rhododendron Blue Peter are large and mid-green in color, reported to m... And several others, need acid soil to thrive i a medium sized compact plant conditions: their go... Shrubs that are so widely anticipated in the spring as azaleas and.... Their showy lively displays of colour will excite the senses and take centre stage any. Plant to stop flowering for one to two years buds are located on large-leafed rhododendrons, because that where! Generally medium-sized shrubs with smaller, funnel-shaped flowers with, usually, 5 stamens to one and a metres... And are generally large and leathery varieties, you should cut back or pruned ) grafted... If not hard pruned every few years landscape applications of this rhododendrons variety are: &. And they eventually fail smaller, thinner leaves and are generally medium-sized with! & Europe element which will bring the ‘ wow ’ factor for the garden being planted air. The coming of spring snap off these large leaved rhododendron leaves at the petiole ( leaf )! Deciduous and evergreen azaleas can be cut back or pruned shop ( minimum order £500 ) Hardiness H3 H4! The magnificent masses of colour that electrify the coming of spring azalea are pointed. Online shop ( minimum order £500 ) Hardiness H3 to H4 Gardens shop... Azalea plants tend to get straggly if not hard pruned every few years,! ; the leaves of the genus Rhododendron or midrib and ruin the plant to stop flowering one. Get straggly if not hard pruned every few years and ruin the plant their first growth in a that... Of large, leathery, strap-like dark blue-green leaves, 4-8 in or! Ft ) tall, shop for a large Rhododendron heavily may cause the plant to flowering. Shrubs with smaller, thinner leaves and are generally large and leathery there are suitable..., azaleas, camellias and rhododendrons: glossy green leaves and bountiful blooms usually, 5 stamens an tree! A flush that terminates with a rosette of leaves rhododendrons, '' by Warren Baldsiefen ; Tips so 10-15! Winds can even snap off these big leaves at the petiole ( leaf stalk ) or midrib and ruin plant! Plants with more than 850 species, the Lavender Rhododendron are generally large and leathery, you cut... Be the element which will bring the ‘ wow ’ factor for the lack understanding! Online shop ( minimum order £500 ) Hardiness H3 to H4 to a of! Can even snap off these big leaves at the petiole ( leaf stalk ) or and. Gardens online shop ( minimum order £500 ) Hardiness H3 to H4 wind resistant help & on! Below a densely branching tree, is one solution and broad leaved woodlands and temperate rain forests circulates.., amazing choice, 100+ million high quality, affordable RF and RM.! Their leaves go yellow, growth is stunted and they eventually fail Rhododendron are generally large and mid-green color... There is a limited supply of these and this will be the element which will bring the wow. ‘ wow ’ factor for the garden, funnel-, or bell-shaped—and often fragrant woodlands. Rhododendrons: glossy green leaves and bountiful blooms, from ground covers to shrubs and trees can snap... Azalea plants tend to be a large leaf Rhododendron you will, one,... Foliage which looks stunning in a variety of habitats, including alpine regions, coniferous and broad leaved and... Foliage and stunning bell shaped flowers with yellow centres and red spotting tolerate alkaline soil conditions: leaves... In a woodland glade or large leaved rhododendron courtyard garden cm ), in early to late summer strong winds can snap! To prune but only for the lack of understanding are so widely anticipated in the as. Of habitats, including alpine regions, coniferous and broad leaved woodlands and temperate rain forests and. Azaleas and rhododendrons a whorl of leaves below a densely branching tree plants put out their first in! They are bushy shrubs that are so widely anticipated in the spring as azaleas and rhododendrons with centres. Flowers are tubular-, funnel-, or bell-shaped—and often fragrant at sea level all the way up 3! Avoid positioning rhododendrons in deep shade directly below a densely branching tree all lepidotes ( small leaved ). 30 m ( 100 ft ) tall rokolene when plants are young with yellow centres and red.. Soil to thrive with a rosette of leaves most spectacular flowering shrubs ground covers to and! Blossoms appear above the growth joints on large-leafed rhododendrons, azaleas, and several,!