William blog

New Guinea Impatiens

Few summer annuals exceed the New Guineas in brightening up a shady spot. They will also tolerate some sun in areas where summers are not too hot and if kept moist.

* photos taken on April 28 2010 in Howard County, MD






























* photo taken on July 16 2010 in Columbia, MD


* photo taken on August 2 2010 in Bayfield, Ontario

* photo of unknown internet source

* photos taken on Aug 4 2012 in Bayfield, ON

* photos taken on Oct 6 2012 in Ellicott City, MD
* photos taken on June 10 2013 in Columbia, MD

Regular Impatiens

* photos taken on June 19 2010 in Columbia, MD





* photo taken on Aug 2010 in Columbia, MD

* photo taken on Aug 1 2011 in Luzerne Co., PA

* photo of unknown internet source


Related Species

Impatien capensis ( Jewelweed )
A annual, reaching up to 5 x 2 feet in size.
The orange flowers are irresistible to hummingbirds.
Hardy zones 3 to 8 in partial to full shade on moist, humus-rich soil. It self seeds readily in ideal conditions.

* photos taken on Sep 3 2012 in Harford Co, MD

Impatiens glandulifera
A tall growing annual, reaching up to 10 feet.
It may be invasive in the British Isles and parts of the Pacific Northwest.

* photos taken on Aug 4 2012 in Bayfield, Ontario

Impatien omeiana ( Mount Omei Balsam )
A low spreading perennial, reaching a maximum height of 16 inches, that is native to Mt Omei in Sichuan Province in western China. It can spread to form a clump up to 3.3 feet across in 2 or 3 years.
The foliage appears very early during spring. The toothed, narrow leaves are deep green with a silver interior pattern.
The spiraling foliage is clustered towards the stem tips.
The deep yellow flowers are borne late summer until autumn frosts.
Hardy zones 6 to 9 in partial to full shade on consistantly moist, well drained soil though established plants may tolerate temporary drought in shade.
Propagation is from division during early spring before the foliage emerges.

* photos taken on June 23 2013 @ U.S. National Arboretum, DC