![]() Small to mid-sized trees can be dug out or you can use a weed wrench to pry them out of the ground. Seedlings should be pretty easy to pull but since there can be so many, it may take a little time. To get rid of this invasive plant, it may take a little work. Ironically, the only plant that can germinate under a Norway Maple is…yep! You guessed it…Norway Maple. Native seedlings will not be able to grow, and the understory becomes a dense layer of Norway Maple.Īfter the Norway Maples become mature, other plants still have difficulty growing due to the heavy shade Norway Maple creates as well as the shallow, dense root system. The seedlings will quickly grow and due to its large leaves, Norway Maple will shade out the understory level in a woodland or forest. Seeds germinate very easily and small seedlings can tolerate even heavy shade. First, its seeds fly everywhere because of their physical structure and can travel for very long distances. ‘Superform’ - medium green, broadly oval to rounded, 45 × 40 ft (14 × 12 m) yellow fall color.Unfortunately Norway Maple is widely overplanted and is invasive in the United States. Summershade® - light green, broad, rounded, 42 × 40 ft (13 × 12 m) yellow fall color. ‘Schwedleri’ - purplish red becoming dark green, 40-50 × 40-50 ft (12-15 × 12-15 m) orange red fall color. ‘Royal Red’ - deep purple, oval then becoming rounded, 40 × 30 ft (12 × 9 m) maroon to reddish bronze fall color.
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