This page contains specific information about Holford's Pine (Pinus × holfordiana) '28649', which can be found in Westonbirt Arboretum in Tetbury (county of Gloucestershire).The tallest in a group of seedlings raised around 1904 from a tree of Pinus ayacahuite var. veitchii at Westonbirt, which grew next to a P. wallichiana. In 2014 there were seven big Holford Pines surviving at Westonbirt, some planted in 1906 and some probably in 1937; several others have recently died.
The growth rate shown in the table shows the yearly average increase in girth since the last measurement. This value only gives an indication of the growth rate, since every measurement could be done at slightly different heights and during different periods of the year.
Its height is exactly 34 m (2014, Laser with Two-point measurement (e.g. Nikon Forestry 550/Pro) - sine method, TheTreeRegisterOwenJohnson). This tree germinated / was planted in 1906, which makes it exactly 118 years old (TheTreeRegisterOwenJohnson, Feb 6, 2017).
Girth growth rate
The girth was measured more than once:| Year | Girth @1.5 m | Measurement | Girth growth rate |
| 2014 | 2.60 m | TheTreeRegisterOwenJohnson | - |
| 2023 | 2.79 m | smal65 | 2 cm/year |
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Photos
The photos are provided by smal65.
26th of August 2023
26th of August 2023