The National Trust has invested £700,000 in a new conservation centre in Devon.
The new two-and-a-half acre facility, at a secret location in east Devon, has plant propagation facilities and plant collection management experts.
It will be used to train staff from across Britain on how to care for important plants, the trust says.
Existing plant conservation work at Knightshayes Court, near Tiverton, will be built on at the centre, it added.
Its objectives include aiming to preserve rare plants threatened by disease such as Phytophthora ramorum, which causes Sudden Oak Death.