Cornish Plant hunting and conservation showcased
Burncoose Nurseries, Great Pavilion, Stand F11

Burncoose Nurseries exhibit will showcase plants from around the world which were brought back to our shores on plant hunting expeditions. Many of the plants on show are now under threat in the wild and in their native countries.

Burncoose has carefully selected plants from around the world that form part of a vast collection of plants now found in the UK. They are shown in the Voyages of Discovery Garden amongst other species from their native countries.

The Plants below are listed in the International Union for Conservation of Nature (IUCN) Red List of Threatened Species 1997 and 2000.

The lists of plants are one of 6 categories listed below
Extinct
No individuals left in the wild

Extinct in the wild
No individuals left in the wild, but known in cultivation or naturalised in a foreign habitat.

Critically endangered
Facing an extremely high risk of extinction in the wild

Endangered
Facing a very high risk of extinction in the wild

Vulnerable
Facing the risk of extinction in the wild

Rare
Small/ localised populations at risk

Lower risk
Conservation methods maintain populations in the wild

North America
Cupressus macrocarpa	Vulnerable
Where found:	Coastal California Monterey County
Reason for threat:	Too frequent fires, urban expansion, over grazing and the fatal cypress canker
Thrives in:	Any free draining soil, better by the sea, but fully hardy
Pinus radiate	Lower risk
Where found:	Coastal California
Reason for threat:	To frequent fires, Pitch Canker
Thrives in:	Full sun free draining soil, fully hardy, good wind break
Romneya coulteri	Rare
Where found:	Santa Barbara to northern Baja
Reason for threat:	Urbanisation
Thrives in:	Full sun, poor rocky soil, fully hardy
South America
Cosmos atrosanguineus	Extinct
Where found:	Mexico
Reason for threat:	Unknown reason for extinction
Thrives in:	Half- hardy perennial, full sun dry soil
Araucaria araucana	Vulnerable
Where found:	Southern Chile
Reason for threat:	Illegal logging and forest fires, over seed collection for food
Thrives in:	Any soil fully hardy, good by coasts
Fitzroya cupressoides	Endangered
Where found:	Southern Chile
Reason for threat:	Logging
Thrives in:	Any soil fully hardy with high rainfall, good on poorly drained sights
Laurelia sempervirens	Lower risk
Where found:	Central Chile, moist seasonal coastal forests
Reason for threat:	Logging
Thrives in:	Any moist deep soil with organic matter, hardy
Podocarpus salignus	Vulnerable
Where found:	Temperate broad leaved forests of southern Chile
Reason for threat:	Logging
Thrives in:	Any moist soil deep soil sun or deep shade, fully hardy
Australasia
Astelia chathamica	Endangered
Where found:	Chatham Islands
Reason for threat:	Over grazing, habitat loss
Thrives in:	Moist free draining soil, sun or part shade
Clianthus puniceus	Endangered
Where found:	New Zealand’s north Islands
Reason for threat:	Habitat loss due to agriculture
Thrives in:	Part shade, moist soil, frost hardy, keep slugs and snails away at all costs
Myosotidium hortensia	Rare
Where found:	Chatham Island
Reason for threat:	Overgrazing, foreign weed species
Thrives in:	Free draining sandy soils, seaweed feed weekly,
Olearia traversii	Lower risk
Where found:	Chatham Islands
Reason for threat:	Over grazing, timber
Thrives in:	Any soil, very good by the sea, frost hardy
Xeronema callistemon	Rare
Where found:	Poor Knights Island New Zealand
Reason for threat:	Over grazing
Thrives in:	Full sun, excellent drainage good in pots, frost tender
Asia
Arisaema sikokianum	Vulnerable
Where found:	Island of Shikoku, Japan
Reason for threat:	Over collecting of tubers, habitat loss
Thrives in:	Shaded woodland gardens, rich in leaf mould
Gingko biloba	Endangered
Where found:	Confined to one mountain in Zhejiang, China
Reason for threat:	Destruction of habitat and poor regeneration
Thrives in:	Sunny situation in any free draining deep soil
Magnolia delavayi	Endangered
Where found:	Confined to Yunnan and Sichuan China, though becoming common in the west
Reason for threat:
Thrives in:	Grows well on chalk, frost hardy
Magnolia willsonii	Endangered
Where found:	Sichuan and western Guizhou china
Reason for threat:	Over collection of bark for medicinal uses
Thrives in:
Magnolia zennii	Critically endangered
Where found:	China
Reason for threat:	No natural regenerations, only 18 left in wild
Thrives in:	Full sun, good deep soil, fully hardy
Metasequoia glyptostroboides	Critically endangered
Where found:	China
Reason for threat:	Over logging
Thrives in:	Moist well drained soil sun or part shade, fully hardy
Atlantic Islands
Argyranthemum frutescens	Vulnerable
Where found:	Canary Islands, Tenerife
Introduced in:	1699
Thrives in:	Free draining soil in full sun, frost tender
Echium pininana	Vulnerable
Where found:	La Palma, Canary Islands, Tenerife
Reason for threat:	Habitat loss
Thrives in:	Full sun any poor dry soil frost hardy with protection
Geranium canariensis	Rare
Where found:	Canary Islands
Reason for threat:	Habitat loss, over collection
Thrives in:	Full sun part shade, Frost hardy
Ilex perado subsp. Platyphylla	Vulnerable
Where found:	Canary Islands, Tenerife and La Gomera
Reason for threat:	Overgrazing, agriculture, urban expansion
Thrives in:	Any free draining soil, frost hardy
Geranium maderense	Endangered
Where found:	Madeira
Reason for threat:	Habitat loss, over collection
Thrives in:	Full sun, part shade, tender
Isoplexis canariensis	Rare
Where found:	Tenerife
Reason for threat:	Once present on all islands now only found on Tenerife, habitat loss
Thrives in:	Sun or part shade, moist free draining soil, frost hardy
Introduced in:	1698
South Africa
Leucadendron argenteum	Vulnerable
Where found:	Only on western slopes on Table Mountain
Reason for threat:	Urban expansion
Thrives in:	Free draining acidic soil frost tender