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QUERCUS robur 'Argenteomarginata'
English Oak, Variegated English Oak
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Undulating lobes on blue-green leaves are edged in ivory on the variegated English oak known as 'Argenteomarginata'. A deciduous tree native to Europe and western Asia, it has bark that is ridged and furrowed, rich brown to gray-black in color. The wavy-edged leaves are oblong with very short stems with few to many lobes. They are first downy and then mature glossy with random streaks of ivory on edges. Lighter streaks of green may occur in the leaf centers, too. As the leave emerge, the pendent male flower spikes, called catkins, line the ends of branches. Soon after the pollen shedding ends, the small female blossoms open at the bases of new leaves on young twigs. Once pollinated, the female flowers develop into oblong oval fruits called acorns, singly or in clusters up to five. The leaves in autumn are held quite late on the branches, and rarely create any display of impressive color. Large birds, such as ducks, crows and quail, will use the acorns as food, as well as many rodents and small mammals.
Plant a variegated English oak in a fertile, moist, well-drained soil for most robust growth. It prospers in sunny locations. Amazingly, this species is very tolerant of both dry and very alkaline soils, too. It is best suited for large lawns or meadows. In severe winters there is often significant twig dieback and mildew frequently affects the foliage during the growing season in regions with warm, humid summers. The quality of variegation may not always be stellar, especially if mildew is common or excessively dry conditions cause leaf edges to brown.
8 - 3
3 - 8
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21
Full Sun, Partial Sun
40'-60' / 12.2m - 18.3m
25'-40' / 7.6m - 12.2m
Europe, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Russia/Siberia, Northern Africa, Western Asia
Acidic, Neutral, Alkaline
Clay, Loam, Sand
Drought Tolerant, Average Water
Spring, Summer, Fall
Red, Light Green
Green, Light Green, Ivory
Green, Blue Green, Ivory
Yellow, Brown, Ivory
Feature Plant, Shade Trees
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