Winter is the best time. The average healthy "Crimson King" Maple stands 35 to 50 feet tall, with an average width of 25 to 40 feet. I have a 35 year old Crimson King Maple, in the same location for over thirty years. However, just because the Crimson King is tall does not mean it is impervious to disease. When the leaves are removed from the stem, a couple dots of white latex will be visible. It is included in an evolving list of plants carefully researched and chosen by RHS experts. One of the most common causes of lack of water is competition from grass. The tree foliage varies from dark red to purple with small greenish yellow spring blooms. All larger trees. The British Grown logo denotes plants and trees that have been both propagated and grown in the UK. Crimson King Norway Maple will grow to be about 40 feet tall at maturity, with a spread of 35 feet. Grow in a moist but well-drained soil, Propagation It has a high canopy with a typical clearance of 7 feet from the ground, and should not be planted underneath power lines. They should be checked at the end of each growing season for adjustment as the trunk thickens. Our Botanical team are working hard to increase the number of plants with detailed information. Get out a magnifying glass, flip a leaf over, and look along the major veins on the underside of a leaf. Search by plant name, key attributes or both to find plant details and a list of This is like the identity of the tree and sets it apart from other trees. The underlying fungus is different for different species, but all these fungi cause the growth of a white mold on the tree's leaves and stems. BS40 8HJ The Crimson King maple has a leaf with five sharp points that resembles other varieties of maples. It has a high canopy with a typical clearance of 7 feet from the ground, and should not be planted underneath power lines. This is a cultivar of the Norway maple native to most of Europe and extending east to Turkey and Iran. Its crimson leaves will make this coin a treasured part of any collection and cherished souvenir from the 'land of the maple leaf'. Thus Norway maple strain of powdery mildew (a specific clone of Sawadaea bicornis) will only affect other Norway maples. The Crimson King maple tree is a striking tree with purple-green foliage that lasts throughout the summer. Unique. Plant this colorfu l Maple tree anywhere you want a shady refuge from the hot summer sun, or use it as a sharp color contrast to light-colored walls or fences. Low Maintenance Crimson King Norway Maple is a dense deciduous tree with a more or less rounded form. Drought tolerant once established. Apply each year for the first 3 years. This moderately drought-tolerant maple produces a beautiful rich crimson leaf color in cooler climates. But if you want to keep them separate you would need to put them 10m-15m away from each other. Specific epithet means resembling platanus (sycamore), which is somewhat curious since the leaves of Norway maple do not really bear that much resemblance to sycamores. 40/60, 60/80, 80/100 whips - Unless rabbit/deer problem no need to stake. Norway maples are dioecious, with male and female trees. The Crimson King maple tree, one of several Norway maple clones, is a medium-sized deciduous tree that grows between 40 to 50 feet. The British Grown logo denotes plants and trees that have been both propagated and grown in the UK. Crimson King Norway Maple is a dense deciduous tree with a more or less rounded form. It is vital for 3 years after planting that your tree or hedge has a circle or strip one  metre wide completely free of grass. Read more, British Grown - Mon – Fri | 9am – 5pm, Join the RHS today and support our charity. Plant this colorfu l Maple tree anywhere you want a shady refuge from the hot summer sun, or use it as a sharp color contrast to light-colored walls or fences. Firmly fit a mulch mat around the base of the tree by tucking the edges into the soil and put a thick layer of bark mulch on top of this. Shop here! 222879/SC038262, If you enter just a plant name, you will see results from the old RHS Plant Finder and Selector databases. Norway Maple. Mature Width/Spread: 25-30 feet. If given the space it can grow to more than 15m (50ft) in height with an oval shaped crown that can almost be as wide as it is tall. 'Crimson King', 'Crimson Sentry', 'Globosum', 'Stand Fast' Tags: #deciduous #fall color #large shade tree #yellow #shade tree #heat tolerant #drought tolerant #wildlife plant #large tree #moths #air pollution tolerant #playground #nighttime garden #children's garden #pollinator plant #larval host plant #bird friendly #butterfly friendly #pollinator garden #moth larva #imperial moth Fax: (01275) 333746 AGM plants have been through a rigorous trial and assessment programme. We are open as normal Monday to Saturday 8:30 to 4:00. Crimson King Norway Maple will grow to be about 50 feet tall at maturity, with a spread of 40 feet. It is, however, possible to overdo this burgundy beauty. Others in the neighborhood have them as well, though the trees otherwise look healthy. Cultivar: ‘Crimson King’. This is a relatively low maintenance tree, and should only be pruned in summer after the leaves have fully developed, as it may ‘bleed’ sap if pruned in late winter or early spring. 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