How do we value a tree

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Michelia champaca. Historical relevance. History - here is the material growing from a well document collection in China by George Forrest.

How rare

Beauty How tall

Value to landscape

What species

How dangerous

How much to replace it

Who collected it How old

Image of the Octagonal Palm House taken in 1854. Note the Palm fronds breaking through the roof. Photographer: Dr. Duncan. Image: Archives of the Royal Botanic Garden Edinburgh

Taken by Robyn Drinkwater

Image of the Sabal taken in 1874 after its move and ‘retubbing’ by James McNab and his team. Image: Archive of the Royal Botanic Garden Edinburgh

Age Age - here is the Sabal palm of the RBGE Palm House through the ages.

Size Size - here is one of the tallest trees in the garden a giant redwood.

18728764A: Sequoia sempervirens

Taxonomic relevance

19699230B: Sorbus torminalis

Taxonomy - here is the individual tree from which the type material was collected.

Historical relevance History - here is the material growing from a well document collection in China by George Forrest.

Michelia champaca

Aesthetics Aesthetics - here is a Magnolia in flower, a tree known for its magnificent blooms.

19370515A: Magnolia denudata

One way is to look at the good the tree does to the environment via things we can measure.

The Ecosystem services.

Liriodendron tulipifera

19687757

See the ecosystem service value of more of the Trees of the Royal Botanic Garden Edinburgh at Treezilla http://www.treezilla.org/

The ecosystem services data in Treezilla comes from