Page 17 Populus nigra ‘Italica’ Lombardy poplar A fast growing, narrow, columnar deciduous tree originating from the Lombardy region of Italy. Reaching 12-21 metres tall with a slender 3-4.5 metres spread, it is commonly planted in rows for windbreaks, privacy screens, and strong vertical accents in the landscape. Its upright, parallel branching creates the iconic “exclamation mark” silhouette, while its diamond shaped green leaves turn golden yellow in autumn. Although highly valued for rapid growth and dramatic structure, it is short lived (typically 10-15 years) due to susceptibility to pests and canker diseases, and its aggressive shallow roots can lift pavements and invade pipes. Best grown in full sun and well-drained soil, the Lombardy poplar is admired for quick height and visual impact but requires thoughtful placement due to its maintenance issues and invasive root behaviour. Quercus palustris, Pin oak A fast growing deciduous oak native to eastern and central North America, admired for its strong pyramidal shape when young and its distinctive branching pattern – upper branches rising upward, middle branches growing horizontal, and lower branches drooping. It typically reaches 15-18 metres tall with a 12-18 metres spread, making it a popular shade and landscape tree. Pin oaks thrive in full sun and moist to medium, acidic, well-drained soils, tolerating poorly drained clay and occasional flooding. The glossy, deeply lobed leaves turn russet red to bright crimson in autumn, providing excellent seasonal colour. The tree produces small acorns that feed wildlife, though it may take 15-20 years to begin fruiting. Known for its rapid growth and ecological value, it is also susceptible to chlorosis in alkaline soils. Its attractive form, transplant ease, and tolerance of wet sites make it highly useful in parks, rain gardens, and large landscapes.
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