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Urban planners and tree experts have tried for decades to keep streets and sidewalks clear of maple spinners, seed pods and fallen fruit, but these efforts may be leading to an increase in allergies.
Botanical Name:Cornus florida Sun Exposure: Full sun to part shade Soil Type: Medium moisture, well-draining, average Soil pH: Acidic to Neutral (5.0-7.0) USDA Hardiness Zone: 5 to 9 While dogwood ...
Abies fraseri is a small evergreen coniferous tree typically growing between 30 and 50 ft (10 and 20 m) tall and rarely to 80 ft (20 m), with a trunk diameter of 16–20 in (41–51 cm), rarely 30 in (80 cm). The crown is conical, with straight branches either horizontal or angled upward at 40° from the trunk; it is dense when the tree is ...
The Kentucky coffeetree is a moderately fast-growing tree, and male trees are often grown in parks and along city streets for ornamental purposes. The tree is typically fairly short-lived, healthy trees living from 100 to 150 years. [8] The Kentucky coffeetree sheds its leaves early during the fall and appears bare for up to 6 months.
The OPALS allergy scale was first published in Allergy-Free Gardening, by Thomas Leo Ogren, in 2000. [1] It covers over 3,000 common trees, shrubs, flowers, and grasses. [3] The allergy scale was updated and extended in 2015 in The Allergy-Fighting Garden. [4] [5] [6]
Spring is creeping up fast in the United States, and that means warmer weather is on the horizon after a rough winter in some regions, but for those who suffer from seasonal allergies, there may ...
The tulip tree is a popular specimen tree in landscape, turning a rusty orange in Fall. Tulip trees make magnificently shaped specimen trees, and are very large, growing to about 35 m (110 ft) in good soil. They grow best in deep well-drained loam which has thick dark topsoil. They show stronger response to fertilizer compounds (those with low ...
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