Gorse
Gorse is a dense, spiny evergreen shrub with bright yellow flowers that grows beside fairways on links and heathland golf courses. A ball hit into mature gorse is usually lost.
What is gorse?
Golfers hear the word most often during The Open Championship, when a commentator announces that someone has found the gorse and the camera cuts to a wall of green spikes. The plant behind the word is common gorse, or Ulex europaeus, a member of the pea family. Its spines are modified leaves rather than thorns growing among ordinary foliage, which is why the whole bush looks green and needled. The flowers give off a sweet scent that most people read as coconut.
Older golfing vocabulary calls the same plant whin or furze. Both words survive in Scottish and Irish hole names.
How big it gets depends on where it grows. The Wildlife Trusts lists common gorse in Britain at up to two metres tall. In parts of the world where it spreads unchecked as an invasive plant, Oregon State University Extension has recorded specimens reaching 15 feet in height and 10 to 30 feet across.
Why gorse grows on golf courses
Nobody planted most of it. Gorse is native to the British Isles and the western seaboard of continental Europe, and it does well in exactly the poor, sandy, acidic ground that links land is made of. Its roots fix nitrogen from the air, a trait recorded by King County, Washington, which lets it establish itself where little else takes hold.
That means the dunes were covered in gorse long before anyone cut a hole in them. Early course routing worked around the stands that were already standing, which is why gorse tends to frame a fairway in awkward, irregular patches rather than sitting in tidy beds. St Andrews Links treats the strategic and visual value of its gorse as one of the things any management plan has to weigh.
Flowering seasons vary by species, which explains why one course turns yellow in March and another in August. The Wildlife Trusts records common gorse flowering from January to June, sometimes sporadically year round, while western gorse and dwarf gorse flower from July to November.
What the Rules of Golf say about gorse
Here is the part most golfers get wrong. Gorse is normally part of the general area, carrying the same status as ordinary rough, and it is not a penalty area. A ball sitting in a gorse bush earns the player no free drop.
Two rules apply before any penalty comes into it. Under Rule 18.2a, a search lasts three minutes, timed from the moment the player or caddie starts looking. Rule 7.1 permits bending or moving branches while searching for and identifying the ball, with no penalty for doing so.
If the ball turns up and playing it looks unwise, only the player may declare it unplayable, and that option exists anywhere on the course except inside a penalty area (Rule 19.1). Rule 19.2 then gives three ways to proceed, each costing one penalty stroke.
| Option | Rule | How it works |
|---|---|---|
| Stroke and distance | 19.2a | Play again from where the previous stroke was made |
| Back on the line | 19.2b | Drop on the line running from the hole through the ball’s spot, as far back as the player wishes |
| Lateral relief | 19.2c | Drop within two club-lengths of the ball’s spot, no nearer the hole |
A ball wedged off the ground inside a bush gets its own treatment. USGA interpretation 19.2c/1 sets the reference point as the spot on the ground directly beneath the ball rather than the ball’s actual position.
When the ball is never found at all, the choice narrows to one. Stroke and distance can be taken without finding the ball, while the other two options require the player to know where it lies.
A local exception is worth checking for. The R&A’s committee procedures let a committee mark ground that holds no water as a penalty area, including dense vegetation where a ball will almost always be lost. Any club that has staked its gorse this way will say so on the local rules sheet.
Gorse vs. heather vs. broom
Three plants share the same rough on British and Irish courses, and golfers mix them up constantly.
| Plant | Scientific name | Flowers | Spines | Height |
|---|---|---|---|---|
| Gorse | Ulex europaeus | Yellow, January to June | Dense and sharp | Up to 2m |
| Broom | Cytisus scoparius | Yellow, April to June | None | Up to 2m |
| Heather | Calluna vulgaris | Pink to purple, August to October | None | Low, mat-forming |
Two things separate them at a glance. Gorse is armoured with spines along every branch, while broom’s stems are smooth and whippy. Scent tells them apart too: the Wildlife Trusts describes broom as smelling of vanilla, against gorse’s coconut. Heather needs no test at all, forming an ankle-deep purple carpet instead of a bush.
The difference shows up on the card. A ball in heather can usually be found and sometimes advanced with a lofted club. A ball in mature gorse is generally gone.
How courses manage gorse
Greenkeepers treat gorse as something to cut on a cycle rather than a weed to wipe out. St Andrews Links replaced years of random winter cutting with a 12-year rolling plan drawn up by the STRI in 2005, coppicing stands that had grown leggy and clearing gorse where it hurt play or crowded out heather.
Wholesale removal is neither easy nor wanted. Oregon State University Extension reports that seed stays viable in the soil for around 30 years and that cut plants resprout quickly, and King County has recorded mature plants producing up to 18,000 seeds a year. Managed stands also shelter nesting birds, with St Andrews naming the linnet, blackbird, stonechat and yellowhammer among the species using gorse on the Old Course.
The oil content makes the plant burn fiercely once alight. A fire fuelled partly by gorse destroyed most of Bandon, Oregon in 1936, and King County records 14 deaths with 16 buildings left standing.
Related Golf Terms
- Swale — A shallow grassy dip or hollow on the course.
- Waste area — A large, unmaintained sandy region played as general area.
- Fescue — A wispy, fine-bladed rough grass common on links courses.
- Mounding — Built-up earth used to shape and frame holes.
- Native area — Unmanaged natural grasses bordering the playing corridors.
Frequently Asked Questions
Is gorse a penalty area?
Usually not. Gorse sits in the general area by default, so relief costs a penalty stroke under Rule 19. A committee may stake dense gorse as a penalty area, and the local rules sheet will state it where that applies.
What happens if a ball in gorse cannot be found?
After three minutes of searching, the ball is lost. The player goes back to the spot of the previous stroke and plays again, adding one penalty stroke.
Why does gorse smell like coconut?
The yellow flowers carry a sweet perfume that most noses read as coconut. It comes through strongest on warm, still days with a stand in full bloom.
Which golf courses have the most gorse?
Scottish and Irish links courses, plus English heathland courses. Royal Birkdale and the Old Course at St Andrews both carry sizeable stands.
Is gorse the same thing as a whin bush?
Yes. Whin and furze are older regional names for the same plant, and both still appear on scorecards and hole names across Scotland and Ireland.
Sources
- The R&A. “Rule 18: Stroke-and-Distance Relief; Ball Lost or Out of Bounds; Provisional Ball.”
https://www.randa.org/en/rog/the-rules-of-golf/rule-18 Accessed 5 August 2026. - The R&A. “Rule 19: Unplayable Ball.”
https://www.randa.org/en/rog/the-rules-of-golf/rule-19 Accessed 5 August 2026. - The R&A. “Committee Procedures, Section 2: Course Marking for General Play.”
https://www.randa.org/en/rog/committee-procedures/2 Accessed 5 August 2026. - USGA. “Rule 19 Interpretations.”
https://www.usga.org/content/usga/home-page/custom-search-pages/rules/2019-golf-rules-and-interpretations/rule-19-interpretations.html Accessed 5 August 2026. - The Wildlife Trusts. “Common gorse.”
https://www.wildlifetrusts.org/wildlife-explorer/trees-and-shrubs/common-gorse Accessed 5 August 2026. - The Wildlife Trusts. “Broom.”
https://www.wildlifetrusts.org/wildlife-explorer/trees-and-shrubs/broom Accessed 5 August 2026. - The Wildlife Trusts. “Heather.”
https://www.wildlifetrusts.org/wildlife-explorer/wildflowers/heather Accessed 5 August 2026. - Oregon State University Extension Service. “Invasive weeds in forestland: Gorse” (EC 1593).
https://extension.oregonstate.edu/catalog/ec-1593-invasive-weeds-forestland-gorse Accessed 5 August 2026. - King County, Washington. “Gorse identification and control.”
https://kingcounty.gov/en/dept/dnrp/nature-recreation/environment-ecology-conservation/noxious-weeds/identification-control/gorse Accessed 5 August 2026. - St Andrews Links. “Why is gorse management so important?”
http://blog.standrews.com/2016/08/23/why-is-gorse-management-so-important/ Accessed 5 August 2026. - Golf Digest. “British Open 2017: What the heck is a gorse bush?”
https://www.golfdigest.com/story/british-open-2017-what-the-heck-is-a-gorse-bush Accessed 5 August 2026.
