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Purple Prince Crabapple - Malus 'Purple Prince' [2] Rose Family: Rosaceae Height: 15 feet / 4.5 m / USDA zones 4 through 7 Insects & Spiders Home | Trees Graphics | Trees Index | Rosaceae Index | Rosaceae Graphics |
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Seventeen crabapple (Malus) cultivars planted under utility wires in 27 communities were evaluated as street trees. In most communities, 2 cultivars were alternated within each of several plots. Cooperators in the Municipal Tree Restoration Program used standardized methods to measure them annually at the end of the growing period for 3 years and periodically afterwards until the ninth year in some cases.
Many differences were found in growth rate, height, crown width, and trunk diameter. Most cultivars had healthy foliage, though some injuries were caused by apple scab and several insects. Basal sprouts were common, and low branching of broader cultivars also required periodic pruning especially in confined spaces. Centurion®, Harvest Gold®, Red Jewel®, ‘Spring Snow’, and Sugar Tyme® are recommended as street trees based on the most extensive data. ‘Adams’, ‘Donald Wyman’, ‘Prairiefire’, ‘Red Barron’, and zumi ‘Calocarpa’ also appear promising. [3] |
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Purple Prince Crabapples - Malus 'Purple Prince', Morton Arboretum acc. 49-93*1 & 2 [2]
26 communities in Pennsylvania and Delaware planted trees
represented in this report. Four of the communities had 2 tests
planted in different years. Community representatives chose the
planting sites with assistance by utility foresters, service
foresters, and Extension urban foresters; 2 of these usually
assisted each community.
A typical test consisted of 4 varieties planted alternately within 8 to 10 plots that could contain 4 to 16 trees each a total of 50 trees. All test trees were planted along streets and under electric conductors; the utility company arranged for removal of large trees that interfered with utility lines. Both cultivars for a community were ordered balled and burlapped from the same nursery, with a caliper of 4.4 or 5.1 cm (1.75 or 2 in.); heights ranged from 2.4 to 3.7 m (8 to 12 ft). The cultivar tests were planted between 1987 and 1996. A trained cooperator inspected and measured the
trees annually during the first 4 years, and then at 3-year
intervals. During September or October, a service forester or
Extension urban forester used standardized methods to measure tree
height, trunk diameter at breast height (dbh), and crown width, and
to classify foliage health, branch health, trunk health, maintenance
needs, and an overall quality rating). Causes of damage such as
disease, insects, drought, and mechanical injuries also were
recorded. [3] Crabapples are useful as ornamentals where the fruit will not fall on sidewalks, driveways, or anywhere there is pedestrian traffic. Even placed in a lawn, some cultivars produce so much fruit the windfalls can interfere with mowing operations. [1] |
Outstanding Purple flowers
Various cultivars of genus Malus and their attributes: Cultivars with red flowers include: 'American Beauty' - double, red flowers, susceptible to scab; 'Centurion' - a columnar growth habit, red flowers followed by bright red, persistent fruits; 'Indian Magic' - red flowers, maroon fall color, small red fruit, persistent; 'Purpurea Lemoinei' - dark rose color flowers, alternate bearing; 'Profusion' - red flowers and fruit; 'Red Baron' - red flowers, susceptible to scab; 'Red Silver' - red flowers, red fruit, susceptible to scab; 'Red Splendor' - red buds, red to pink flowers, red fruit, susceptible to scab; 'Royal Ruby' - double red flowers, sparse red fruit, susceptible to scab; 'Royalty' - red flowers, red fruits, foliage purple, susceptible to scab; 'Selkirk' - red flowers, red fruits, susceptible to diseases; 'Sparkler' - red flowers, red fruits; 'Tomiko' - disease-resistant, 'Wisley' - red flowers. [1] |
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