A broom shrub in flower.

A Rhododendron shrubbery in Sheringham Park.

A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m (15–20 ft) tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience. Small, low shrubs such as lavender, periwinkle and thyme are often termed subshrubs.

An area of cultivated shrubs in a park or garden is known as a shrubbery. When clipped as topiary, shrubs generally have dense foliage and many small leafy branches growing close together. Many shrubs respond well to renewal pruning, in which hard cutting back to a 'stool' results in long new stems known as "canes". Other shrubs respond better to selective pruning to reveal their structure and character.

Shrubs in common garden practice are generally broad-leaved plants, though some smaller conifers such as Mountain Pine and Common Juniper are also shrubby in structure. Shrubs can be either deciduous or evergreen.

Shrubs as a botanical structural form[link]

In botany and ecology a shrub is more specifically used to describe the particular physical structural or plant life-form of woody plants which are less than 8 metres (26 ft) high and usually have many stems arising at or near the base.

For example, a descriptive system widely adopted in Australia is based on structural characteristics based on life-form, plus the height and amount of foliage cover of the tallest layer or dominant species.^[1]

For shrubs 2–8 metres (6.6–26 ft) high the following structural forms are categorized:

• dense foliage cover (70–100%) — closed-scrub
• mid-dense foliage cover (30–70%) — open-scrub
• sparse foliage cover (10–30%) — tall shrubland
• very sparse foliage cover (<10%) — tall open shrubland

For shrubs less than 2 metres (6.6 ft) high the following structural forms are categorized:

• dense foliage cover (70–100%) — closed-heath or closed low shrubland—(North America)
• mid-dense foliage cover (30–70%) — open-heath or mid-dense low shrubland—(North America)
• sparse foliage cover (10–30%) — low shrubland
• very sparse foliage cover (<10%) — low open shrubland

List of shrubs (bushes)[link]

Those marked * can also develop into tree form.

References[link]

See also[link]

• Shrubbery
• Shrubland

Mike Harmon
Born	(1958-01-24) January 24, 1958 (age 54) Birmingport, Alabama, United States
NASCAR Nationwide Series career
137 race(s) run over 11 year(s)
Car no., team	No. 74 (Mike Harmon Racing)
2011 position	50th
Best finish	23rd - 2003
First race	1996 Winston Motorsports 300 (South Boston)
Last race	2012 History 300 (Charlotte)
Wins Top tens Poles 0 0 0
NASCAR Camping World Truck Series career
34 race(s) run over 6 year(s)
Truck no., team	No. 74 (Mike Harmon Racing)
2011 position	101st
Best finish	54th - 2005
First race	2001 MBNA E-Commerce 200 (Dover)
Last race	2012 Lucas Oil 200 (Dover)
Wins Top tens Poles 0 0 0
Statistics current as of June 1, 2012.

Harmon's Nationwide Series No. 07 in 2009
2012 ARCA Racing Series
Debut season	1998
Current team	Peterson Motorsports
Car no.	31
Starts	121
Wins	0
Poles	0
Best finish	8th in 2005

Mike Harmon (born January 24, 1958)^[1] is an American race car driver. Currently, he drives the #74 Mike Harmon Racing Chevrolet in the NASCAR Nationwide Series. In the past, he drove in the NASCAR Slim Jim All Pro Series, finishing 8th in points in 1997. He has also racked up 300 feature wins in short-track competition during his racing career.

NASCAR career[link]

Harmon made his NASCAR debut in 1996 driving the #24 MedPartners Chevrolet at South Boston Speedway, where he finished 31st after a transmission failure. He ran seven more races in the car that season, with a best finish of 23rd, but a sponsorship struggle caused his team to close down. He was scheduled to return to NASCAR in 1999, when he signed with Donlavey Racing to compete for NASCAR Winston Cup Rookie of the Year honors with Big Daddy's BBQ Sauce sponsoring. Unfortunately, Big Daddy's never paid, and Harmon was reportedly fired from the team during preparation for that year's Daytona 500 when he refused to let another driver try to get more speed out of the car.

In 2001, Harmon returned to the Busch Series, driving fourteen races for Mixon Motorsports in the #44 Pontiac Grand Prix. Driving mostly with sponsorship from Pegasus and Reliance Tool, his best finish was a 28th at Indianapolis Raceway Park, the only race he finished that year. He made an additional start for Moy Racing at Talladega Superspeedway, finishing 35th, and competed in two Craftsman Truck races for MB Motorsports and Troxell Racing, respectively. He made 25 starts for Mixon in 2002, with a best finish of 22nd at Daytona. The following season, he competed in a career-high total of 32 races, and finished seventeen of them. With a new team partner in Global Industrial Contractors and picking up sponsorship from The FanZ Car later in the season, Harmon had his first career top-twenty finish at IRP and finished 23rd in points.

GIC-Mixon switched to the #24 in 2004 and after the Aaron's 312, he was released from the team and replaced by Shane Hmiel. He made two more starts that season, his best finish being 33rd at Memphis Motorsports Park for Oostlander Racing. In 2005, Harmon and Oostlander purchased part of the assets of Innovative Motorsports and ran the first four races of the season in the #21 Global Pigeon Supply Chevrolet Silverado, before focusing mainly on ARCA racing. Harmon attempted a Busch Series race later in the year at Memphis for Bobby Norfleet, but did not qualify.

Harmon returned to NASCAR in 2007, driving the #44/#48 car for Richardson-Netzloff Racing in the Busch Series. He made seven races with a best finish of 38th before handing the ride off to Jennifer Jo Cobb late in the season. He attempted a full season in the #84 Chevrolet fielded by the new Elite 2 Racing team in 2008. Harmon posted his best finish in the Nationwide Series to date, finishing 17th at the Aaron's 312.

In 2009, Harmon started racing in his own #84 car and then took over the #07 Chevrolet for SK Motorsports. He would also start and park in his own #24 in four Camping World Truck Series races. For 2010, Harmon has run part-time in the Truck Series for both Lafferty Motorsports and Daisy Ramirez Motorsports.

Harmon drove his own #74 Chevrolet in the 2011 season, running approximately half the season's races; he also competed in several Truck Series races later in the year. He will return to the Nationwide Series in the No. 74 in 2012.^[2]

Bristol Crash[link]

Harmon is also famous for an incident at Bristol Motor Speedway in August 2002. Harmon was practicing his #44 car, when he crashed into the track's infield entry gate in Turn 2. The gate was improperly secured and swung open when Harmon crashed into it. Harmon's car then impacted the end of the concrete wall head-on. The impact was so violent, the car literally split in half. The remnants of the vehicle were then struck by the car of Johnny Sauter, but he hit the half that Harmon was not sitting in. Harmon later walked away from the crash unharmed.

References[link]

External links[link]

• Official website
• Mike Harmon at Racing Reference
• Mike Harmon at ARCAracing.com