Cytisus Species, Scotch Broom, Broomtops, Common Broom, European Broom, Irish Broom

Cytisus scoparius

Family
Fabaceae (fab-AY-see-ee)
Genus
Cytisus (SIT-is-us)
Species
scoparius (sko-PAIR-ee-us)
Synonym
Sarothamnus bourgaei
Sarothamnus oxyphyllus
Sarothamnus scoparius
Sarothamnus vulgaris
Sarothamnus scoparium
Sun Exposure
Full Sun
Foliage
Evergreen
Deciduous
Height
4-6 ft. (1.2-1.8 m)
Spacing
4-6 ft. (1.2-1.8 m)
Hardiness
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Danger
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Gold (yellow-orange)
Pale Yellow
Bright Yellow
Bloom Time
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Flowers are fragrant
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
5.6 to 6.0 (acidic)
Patent Information
Non-patented
Propagation Methods
From hardwood cuttings
From seed; winter sow in vented containers, coldframe or unheated greenhouse
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Bag seedheads to capture ripening seed
Collect seedhead/pod when flowers fade; allow to dry
Allow pods to dry on plant; break open to collect seeds
Wear gloves to protect hands when handling seeds
Properly cleaned, seed can be successfully stored
Regional

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

Vincent, Alabama

Prescott, Arizona

Tucson, Arizona

Bishop, California

Brisbane, California

Castro Valley, California

Concord, California

East Porterville, California

Lompoc, California

Long Beach, California

Los Gatos, California

Merced, California

Porterville, California

Redwood City, California

San Diego, California

Seaside, California

Somerset, California

Wildomar, California

Colorado Springs, Colorado

Denver, Colorado(2 reports)

Old Lyme, Connecticut

Southbury, Connecticut

Alpharetta, Georgia

Rincon, Georgia

Waleska, Georgia

Des Moines, Iowa

Louisville, Kentucky

Davidsonville, Maryland

Hagerstown, Maryland

North East, Maryland

Rising Sun, Maryland

Valley Lee, Maryland

Franklin, Massachusetts

Sandwich, Massachusetts

Reno, Nevada

Milton, New Hampshire

Bayville, New Jersey

Plainfield, New Jersey

Toms River, New Jersey

Albuquerque, New Mexico

Brooklyn, New York

Riverhead, New York

Burlington, North Carolina

Fayetteville, North Carolina

Hendersonville, North Carolina

Maple Hill, North Carolina

Geneva, Ohio

Williamsburg, Ohio

Bandon, Oregon

Beaverton, Oregon(12 reports)

Clatskanie, Oregon

Oakland, Oregon

Wilsonville, Oregon

Collegeville, Pennsylvania

Hamburg, Pennsylvania

Hawley, Pennsylvania

Mars, Pennsylvania

Norristown, Pennsylvania

Philadelphia, Pennsylvania

Spring Grove, Pennsylvania

Columbia, South Carolina

Mineral, Virginia

Bremerton, Washington

Davenport, Washington

North Sultan, Washington

Puyallup, Washington

Rainier, Washington

Seattle, Washington(3 reports)

Shelton, Washington

Skokomish, Washington

Sultan, Washington

Vancouver, Washington

show all

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Gardener's Notes:

25
positives
12
neutrals
23
negatives
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S
Franklin, MA | June 2016 | neutral

We purchased in spring 2016 (from a reliable nursery here) as a likely candidate to fill in empty spot in difficult, dry area near a new ...Read More

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ROSLINDALE, MA | April 2015 | neutral

This shrubby species has been declared a noxious weed by the states of California, Oregon, Washington, Idaho, and Hawaii, where it invade...Read More

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East Porterville, CA | April 2015 | positive

So far my experience with 'Sweet' Broom is different than what most are describing about something called Scotch Broom or Spanish Broom. ...Read More

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Barker Heights, NC | May 2014 | positive

Grows easily in high mountain in Hendersonville, NC. It's nice because I have heavy clay, rocky soil on a hill and I'm hoping that it's ...Read More

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Brisbane, CA (Zone 10b) | September 2013 | neutral

According to Sunset Western Garden Book, lower growing hybrids like "Lena" or "Moonlight" are much less aggressive. In fact, this link sa...Read More

A
Pleasant View, TN (Zone 7a) | June 2013 | neutral

I don't see many comments from the southeast. Is this plant invasive in Tennessee? I bought one at Wally World a while back and wonder ...Read More

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Davenport, WA (Zone 6a) | May 2013 | positive

We live in Davenport, WA (just NW of Spokake in eastern Washington). It hits 85 degrees (dry) here in the summer and only goes to about ...Read More

A
Wildomar, CA | March 2013 | negative

Plant gets infested with genista worms. I no longer grow this plant because they ate it up.

S
Burlington, NC | May 2012 | positive

I have the "moonlight" variety planted in a large pot beside my back door. I seems to be one of the few plants that can take the hot, dr...Read More

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Warren, MI | September 2011 | neutral

I just bought this at Lowe's in Michigan. I think it is spectacular in appearance. I guess I should have researched first. Now, I don'...Read More

C
Sandwich, MA | May 2011 | positive

We planted a Scotch Broom in our yard on Cape Cod. We recently transplanted it because it was not doing as well as we hoped. It does fl...Read More

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Davenport, IA | May 2011 | negative

i would recommend in any zone, do not plant. I just saw this here in this area for sale. Cute but having passed on cute plants to other...Read More

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(Zone 7b) | April 2011 | neutral

I see the occasional plant of this near where I live (Maidstone, SE England) but it is nowhere near as common or prolific as Gorse, which...Read More

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Wellington, NV | March 2011 | positive

I live in a very arid desert area in middle west Nevada. These plants do very well in the sub-zero temperatures and we have not had one p...Read More

C
Los Gatos, CA | April 2010 | negative

Scotch Broom: Even if this plant is not invasive in your area, planting it allows it to travel via automobiles, birds, etc. It is a horri...Read More

T
Portland, MI | April 2010 | neutral

I live in lower Michigan, zone 5. I bought two scotch brooms yesterday at Lowe"s. The tag said zone 5, but have not read any remarks from...Read More

S
North East, MD | March 2010 | neutral

I have or had three scotch broom plants in front of my house. The house was built in 2006 and we bought it in 2008. I'm guessing the plan...Read More

S
Prescott, AZ (Zone 7a) | March 2010 | positive

After reading the other reviews and seeing myself firsthand how bad of an invasive species this can be (I have heard of and witnessed qui...Read More

F
Stayton, OR | February 2010 | negative

There are several brooms that are noxious/invasive weeds, dominently are FRENCH BROOM, SCOTCH BROOM and SPANISH BROOM.

T...Read More

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Seattle, WA | May 2009 | negative

Invasive exotic which should not be planted. It invades meadows and displaces natives. It is a lot of work to remove due to its deep root...Read More

V
Rockville, MD | March 2009 | positive

The plant that I am in love with is the "Sweet Broom" bush, which purfumes the air with a most intoxicating citrus smell from heaven.
...Read More

E
Sierra Foothills, CA (Zone 8a) | September 2008 | positive

According to the experts in the field, the broom along the highways is NOT Scotch Brooom, but Spanish Broom, Sparteum junceum.
...Read More

S
Norristown, PA (Zone 6b) | June 2008 | positive

3 years ago I planted 2 of these in my evergreen shrub bed in front of the house. They grew to 5' by 5' and completely fell forward cove...Read More

S
Georgetown, CA | October 2007 | negative

Although this plant looks nice, we just spent a bundle having around 3 acres of it cleared by tractor. We are in the hills about an hr o...Read More

P
Centerville, IA | July 2007 | positive

When I lived in southern Calif., we had a Scotch broom in the corner of our yard and it never spread! I was surprised to read it is consi...Read More

D
Wilsonville, OR (Zone 8b) | June 2007 | negative

The invasiveness of this plant cannot be overstated. It has spread all over Oregon, and if it's not on the Invasive Species List, it shou...Read More

G
Rainier, WA | June 2007 | negative

This plant has totally overgrown my lower 5 acres chocking out all native vegetation and the 100 douglas fir trees I planted. The propert...Read More

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Quesnel, BC (Zone 4a) | June 2007 | negative

On a recent visit to the Gulf Islands off British Columbia's coast, I was horrified to learn that, in addition to its relentless invasive...Read More

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Laurel, DE (Zone 7a) | April 2007 | positive

Have had two in West MD for about 6+ years and never had either spread.
Unfortunately this year the lovely kind of reddish/pink/...Read More

J
Colorado Springs, CO (Zone 5a) | March 2007 | neutral

The comments almost exclusively show that this is a horror on the West Coast, and a pleasure on the East Coast. I'm in Colorado and plan...Read More

L
Central, AL (Zone 7b) | January 2007 | positive

I have one that blooms pink, for two years, it's confined in a big pot outside. No seeds was observed. Easy care, like more of them aro...Read More

B
| June 2006 | negative

On Vancouver Island from a few plants planted by a scotchman we are now over run by this plant it will cost thousands if not millions to ...Read More

J
Shelton, WA | June 2006 | negative

This stuff is bad...bad...bad!!! Here in Shelton, WA, it is everywhere. In the spring, everything turns yellow from the pollen. My ca...Read More

D
Hawley, PA (Zone 5a) | June 2006 | positive

Scotch broom adds a yellow flash of color in our area which has an over abundent amount of white tailed deer who eat almost everything. T...Read More

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Amelia, OH | June 2006 | positive

We are east of the Cincinnati Ohio area and planted ours about 3 years ago. We liked it so much that we began to look for another. We ...Read More

C
Santa Rosa, CA | May 2006 | negative

This plant is growing on our empty lot in Lakebay, Washington. We are required by the homeowners association to eradicate it from along ...Read More

L
Seattle, WA | May 2006 | neutral

Scotct Broom is an Invasive Plant, and one that, alas, grows all too freely in Washington state.

This is one flower that n...Read More

C
Austin, TX (Zone 8b) | April 2006 | neutral

I just bought one "Lena's Broom" (Cytisus x 'Lena') WEED (so you say! ha) yesterday for $24.99 here in Austin, Texas!!! Boy, was I suck...Read More

S
Atlanta, GA (Zone 7b) | April 2006 | positive

I have three in Atlanta - not at all invasive - I've had the three or four years and never pulled a seedling. That said - they tend to le...Read More

E
Mars, PA | April 2006 | positive

I have three of the rose colored scotch broom plants growing on the south side of my house. In the Pittsburgh area it is an uncommon pla...Read More

L
Columbia, SC (Zone 8a) | March 2006 | positive

In the Upstate of South Carolina, Scotchbroom is a great plant. While it will reseed itself, it also only lives a few years, so it never...Read More

C
Bandon, OR (Zone 9a) | December 2005 | negative

Like others in the west I fight this pest constantly. Only thing I can think of that's worse is Gorse! The seeds seem to be dormant for...Read More

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Stanford, CA (Zone 9b) | December 2005 | negative

You can't understand quite what a menace this plant is until you've spent days 'pulling' it out by it's tenacious roots on a volunteer ba...Read More

C
Lompoc, CA (Zone 10a) | December 2005 | negative

This plant is a weed and always has some green catipilars eating at it. One time i found the whole bush had those green eating bugs! And ...Read More

I
Arroyo Grande, CA (Zone 11) | November 2005 | positive

I'm on the central coast of California and have planted one several years ago. It adds a bright note to the entrance of my estate and has...Read More

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Castro Valley, CA (Zone 9a) | May 2005 | positive

I've grown it both here and in Southern California and never had a problem with it except that snails adore this plant! My plants have al...Read More

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Ellicott City, MD | May 2005 | positive

This seems to do well on the East Coast without becoming invasive. I believe there are different varieties with the nursery ones here bei...Read More

C
Santa Cruz Mountains, CA (Zone 9a) | April 2005 | negative

I echo the comments of others. Do not be beguiled by this plants beauty or ease of growth! It will consume everything it encounters and w...Read More

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Oakland, OR (Zone 8a) | January 2005 | negative

This plant is also a "weed" here in Oregon, both on the coast and along the I-5 corridor. Am not sure about East of the Cascade Mountain...Read More

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(Zone 8a) | January 2005 | positive

One of the plants I most miss being able to grow in Maine. I remember them from the Northumberland countryside..

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| November 2004 | negative

This is a huge weed in the Gulf Islands (Z8) of Victoria B.C. The only way to get rid of it is to pull all seedlings every year for seve...Read More

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(Zone 7a) | October 2004 | positive

I grew this from seed this year..I can't see it's invasiveness yet. It's a slow grower. I have also never seen one in PA...at least not i...Read More

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| May 2004 | negative

Back in the 1800’s a homesick Scotsman imported a few broom seeds from his birthplace to Sooke in British Columbia. They didn’t make...Read More

B
Waldorf, MD | May 2004 | positive

Just bought my Scotch Broom plant and after reading all the comments about this plant I am worried? I have terrible allergies but drove ...Read More

S
Old Town, FL | November 2003 | negative

When I lived in a redwood canyon in the Santa Cruz Mountains in Northern California many years ago this was just about the only plant tha...Read More

W
Puyallup, WA (Zone 5a) | November 2003 | negative

Edgewood, Washington
This has to be in the top ten of most obnoxious weeds ever introduced to the world of home gardening. It has...Read More

S
Rising Sun, MD (Zone 6b) | July 2003 | neutral

Here on the east coast, I love this plant, although my husband thinks it looks like a big weed (turns out that it is - in the west). Aft...Read More

A
Anchorage, AK (Zone 4b) | May 2003 | positive

Where I live on the East Coast, we don't have any problems with it naturalizing, so we can grow it without worry. In fact, I have been t...Read More

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Olympia, WA | May 2002 | negative

In Washington State, the yellow one is a notoriously bad character, as well. There ARE ornamental varieties in the greenhouses, such as ...Read More

S
Eureka, CA | May 2002 | negative

When I grew this plant in Reno, Nevada I loved it. Protected on a wall it was pretty. However, in much of California, this is a rank weed...Read More

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