Impatiens Species, Himalayan Balsam, Indian Balsam, Policeman's Helmet, Ornamental Jewelweed

Impatiens glandulifera

Genus
Impatiens (im-PAY-shuns)
Species
glandulifera (glan-doo-LEE-fer-uh)
Synonym
Balsamina glandulifera
Balsamina macrochila
Balsamina roylei
Impatiens macrochila
Impatiens roylei
Sun Exposure
Sun to Partial Shade
Foliage
Smooth
Velvet/Fuzzy
Height
4-6 ft. (1.2-1.8 m)
Spacing
24-36 in. (60-90 cm)
Hardiness
Not Applicable
Danger
N/A
Bloom Color
Pink
Medium Purple
White/Near White
Bloom Time
Mid Summer
Late Summer/Early Fall
Mid Fall
Other Details
Category
Annuals
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Dark/Black
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From herbaceous stem cuttings
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Sitka, Alaska

Alameda, California

Albany, California

Eureka, California

San Leandro, California

La Grange, Kentucky

Brookeville, Maryland

Jamaica Plain, Massachusetts

Averill Park, New York

Elizabethtown, New York

North Tonawanda, New York

Rensselaer, New York

Sainte-Geneviève, Quebec

Bellingham, Washington

Seattle, Washington

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Gardener's Notes:

3
positives
1
neutral
6
negatives
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M
| August 2017 | negative

Please do not plant this.
This plant is running amok in our water courses in South West England. It is very pretty but seeds everywhere.

C
ROSLINDALE, MA | January 2013 | negative

This is a noxious weed in the garden and a threat to natural areas over a wide range of climates. I'm still pulling plants from a dry sha...Read More

B
Eureka, CA | July 2012 | negative

This plant has completely taken over our garden in Northern California. The flowers are pretty, but we are having a terrible time getting rid of it.

T
Fairbanks, AK | July 2011 | positive

My husband and I moved into an older home in downtown Fairbanks in early May. Neighbors told us we'd be suprised by the variety of plant...Read More

R
Toronto, ON (Zone 5b) | July 2009 | negative

According to the Global Invasive Species Database, this plant is very invasive in North America and Europe and difficult to eradicate. ...Read More

M
M
Lexington, KY | May 2008 | negative

A neighbor in Essex County, (northern) New York planted a sample of Himalayan Balsam last year as part of a study of Impatiens. By May t...Read More

B
Lowville, NY | July 2004 | positive

I was given seeds about 20 years ago. When they grew, I transplanted plants to Beaver River Station, North end of Herkimer County, N. Y....Read More

K
Seattle, WA | June 2004 | negative

This Plant is a listed noxious weed and is illegal to sell or to grow in Washington State. In King County, western WA there are over 100 ...Read More

M
Rensselaer, NY | August 2003 | positive

It was a sad occasion, a wake for a child of a great friend, but I was inspired by the garden surrounding the funeral home. One plant rea...Read More

B
B
Baa
| October 2001 | neutral

A large invasive annual from the Himalayas.

Has, lance shaped, toothed mid green leaves and thick red stems. Bears light ...Read More

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