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Cupressocyparis leylandii Castlewellan Gold

11 growers · 7 sizes · from $1.50 ex GST

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Castlewellan Gold is a golden clone of Leyland cypress (×Hesperotropsis leylandii 'Castlewellan', sold as Cupressocyparis leylandii), grown for screens and hedges in gold foliage. HortFlora and the North Carolina toolbox write the clone's name 'Castlewellan'; the RHS and South Australia's Plant Selector write 'Castlewellan Gold'. The references read give it 10 to 25 m high and 2 to 4 m wide.
Illustration of Castlewellan Gold Leyland cypress (×Hesperotropsis leylandii 'Castlewellan'): a flattened spray of scale-like foliage, golden yellow at the tips and dark blue-green within
Castlewellan Gold Leyland cypress (×Hesperotropsis leylandii 'Castlewellan'), a spray of foliage
Type
Evergreen conifer
Height
10 m to 25 m
Spread
2 m to 4 m
Growth
Fast
Sun
Full sun; the RHS also gives part shade
Salt wind
Tolerant
Frost
Tolerates light to heavy frost by South Australia's Plant Selector for its two cultivars
In Australia
Not native

Some growers show prices to verified trade buyers. Sign in or sign up with your ABN to see them and order.

GrowerPrice
Ballarat Advanced Tree Nursery200mmPrice shown to verified trade buyers. Sign in with your ABN to see it.
Ballarat Advanced Tree Nursery300mmPrice shown to verified trade buyers. Sign in with your ABN to see it.
Ballarat Advanced Tree Nursery100L bagPrice shown to verified trade buyers. Sign in with your ABN to see it.
Plant Nest140mm$10.95
Awesome Plants140mm$13.99
Plant Nest200mm$21.95
Garden View Nursery At Regal Gardens200mm$24.99
Plant Nest300mm$83.95
The Advanced Tree Company400mm$90.00
The Advanced Tree Company70L$195.00
Mountview Wholesale Nursery Pty LtdTube$1.50
Yackandandah Valley Nursery140mm$6.25
Yackandandah Valley Nursery200mm$10.25
Greenstead Nursery200mm$13.95
South West Advanced Trees400mm$80.00
Eumundi Roses140mm$8.80
Stani Nursery200mmPrice on application. Sign in to ask the grower.
Stani Nursery300mmPrice on application. Sign in to ask the grower.
Stani Nursery400mmPrice on application. Sign in to ask the grower.

Growing castlewellan Gold

South Australia's Plant Selector entry for this clone gives full sun and a deep, well-drained soil, clay, loam or sand of any pH, with minimal extra watering, and lists it as tolerating drought, light to heavy frost and some salt exposure. The RHS profile for the clone gives full sun or part shade in well-drained soil and rates it H6, hardy through Britain and northern Europe. HortFlora, writing of the hybrid as a whole, says it will not grow well in Canberra.

Pruning. The Plant Selector says it responds well to pruning when a tight hedge is wanted, and the RHS that it needs regular trimming.

Problems. No Australian reference read lists its pests or diseases. The RHS profile for this clone gives British pest and disease notes and lists it as a skin allergen to people and dogs. The Leyland cypress page has the hybrid's full account, its clipping advice and pest reports included.

Using castlewellan Gold

The Plant Selector lists it for screens, hedges and wind protection, and the RHS for hedging, screens and architectural planting. The reason to choose it is colour: golden yellow foliage, sometimes tinged bronze, by the RHS, which the Plant Selector says deepens to gold and bronze as it ages; HortFlora describes dark blue-green sprays with gold tips, and the North Carolina toolbox gold-tipped leaves. HortFlora calls its upright form attractive but warns that it grows fast and should not go into small gardens, and records that it soon became the most popular of the Leyland cypresses after it reached the trade in Britain and Australia in the 1980s. For a green screen of the same kind, see Leighton Green.

What to check before you buy

HortFlora treats Castlewellan Gold, the name it is best known by, as a later name without priority over 'Castlewellan'; the RHS and the Plant Selector use Castlewellan Gold. Growers list it under Cupressocyparis, as Castlewellan Gold or shortened to Cast. Gold or Castl. Gold, and it is also listed as standards, so check the name and the form when comparing growers. Its fast growth is the drawback: the RHS and HortFlora both warn of it. The HortOS guide on hedgerows and windbreaks for small farms covers designing and planting a windbreak. Stock moving between states travels under the state and territory biosecurity rules on moving plants and soil.

Used forhedging and screeningwindbreak

Prices are set by each grower and shown ex GST. Availability is confirmed by the grower at order.

Common questions

Who grows Cupressocyparis leylandii Castlewellan Gold wholesale in Australia?
11 wholesale growers list Cupressocyparis leylandii Castlewellan Gold on HortOS right now, each with their own pot sizes and trade prices. They are in Victoria, New South Wales, South Australia and Queensland. The growers are named on this page.
What pot sizes does Cupressocyparis leylandii Castlewellan Gold come in?
Growers on HortOS list Cupressocyparis leylandii Castlewellan Gold in Tube, 140mm, 200mm, 300mm, 400mm, 70L and 100L bag.
What does Cupressocyparis leylandii Castlewellan Gold cost wholesale?
The median trade price in a 200 mm pot is $17.95 ex GST, across 4 growers who price it. Prices by pot size and state are on its trade price page.
How do I order Cupressocyparis leylandii Castlewellan Gold from these growers?
HortOS is for the trade. Add the lines you want to a list and send it: each grower gets their part of the order by email, confirms what they have and quotes freight, and nothing is bought until you approve it. Listing, searching and ordering are free.
How tall does Castlewellan Gold grow?
The references read give 10 to 25 m high and 2 to 4 m wide: South Australia's Plant Selector gives the low figures, and the RHS the high ones, 25 m or more and up to 4 m wide. The North Carolina toolbox calls it more compact than the hybrid.
What colour is Castlewellan Gold?
Golden yellow, sometimes tinged bronze, by the RHS. The Plant Selector says the yellow deepens to gold and bronze as the foliage ages, HortFlora describes dark blue-green sprays with gold tips, and the North Carolina toolbox gold-tipped leaves.
Is Castlewellan Gold the same as Castlewellan?
Yes. HortFlora gives 'Castlewellan' as the clone's name and Castlewellan Gold as a later name, the one it is best known by, without priority. The North Carolina toolbox also writes 'Castlewellan', while the RHS and South Australia's Plant Selector write Castlewellan Gold.
Where did Castlewellan Gold come from?
Castlewellan Forest Park in County Down, Ireland, from seed of a Monterey cypress 'Lutea' growing beside a Nootka cypress 'Lutea', by HortFlora. It was introduced probably in the late 1960s and was in the trade in Britain and Australia by the 1980s.
Can Castlewellan Gold be kept as a hedge?
Yes, with regular trimming. The Plant Selector says it responds well to pruning for a tight hedge, and the RHS advises clipping two or three times a growing season, cutting only young green shoots, since old wood will not resprout.

Sources

The growers, sizes and prices above are live and change as lists arrive. Cite this page: HortOS, Castlewellan Gold (×Hesperotropsis leylandii 'Castlewellan'), https://au.hortosapp.com/plants/cupressocyparis-leylandii-castlewellan-gold.

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