Insole Court has a number of notable trees, including some Wales and Glamorgan Champions. These are shown in the following table, which can be sorted on botanical name or common name by clicking on the Name or Common Name heading.
| Name | Common Name | Origin | Status | Location | OS Grid | Tag | Place | Event | Waypoint | |
|---|---|---|---|---|---|---|---|---|---|---|
| Cedrus libani | Cedar of Lebanon | Asia Minor and Syria | Glamorgan Champion 2005 | South of the house | ST 15035 77670 | Insole Court | 184 | |||
| Cryptomeria japonica | Japanese red cedar | Japan | East boundary of Iris Garden | ST 15112 77675 | Insole Court | 576 | ||||
| Eriobotrya japonica | Loquat | China and Japan | Wales Champion 2017 | North end of car park | ST 15006 77905 | Insole Court | 508 | |||
| Fagus sylvatica f. purpurea | Copper beech | Europe | Rock Garden, east end | ST 15059 77656 | Insole Court | 516 | ||||
| Fagus sylvatica 'Riversii' | Rivers Purple beech | Garden origin | West edge of Cedar Lawn, east | ST 15001 77651 | Insole Court | 572 | ||||
| Ginkgo biloba | Maidenhair tree | China | West of the house | ST 15018 77709 | Insole Court | 574 | ||||
| Liquidambar styraciflua | Sweet gum | East USA to Nicaragua | Glamorgan Champion 2017 | Croquet Lawn, west side | ST 15073 77706 | Insole Court | 517 | |||
| Luma apiculata | Chilean myrtle | S. Andes | Wales Champion 2005 | House rear terrace | ST 15056 77713 | Insole Court | 514 | |||
| Magnolia denudata | Yulan | China | Rare | Cedar Lawn, beside summerhouse | ST 14992 77687 | Insole Court | 579 | |||
| Magnolia kobus | Kobushi | Japan | Rather rare | North end of car park | ST 14986 77904 | Insole Court | 509 | |||
| Pinus densiflora | Japanese red pine | Japan | Rather rare Wales Champion 2022 | North end of car park | ST 14984 77904 | Insole Court | 857 | |||
| Rhododendron augustinii 'Electra' | Rhododendron 'Electra' | Garden origin | In the Rock Garden | ST 15035 77644 | Insole Court | 511 | ||||
| Sophora tetraptera | Kowhai | New Zealand | Rare Wales Champion 2017 | East of house | ST 15070 77727 | Insole Court | 510 | |||
| Stuartia pseudocamellia | Deciduous camellia | Japan | Rather rare | West end of Rock Garden | ST 15010 77635 | Insole Court | 539 | |||
| X Cupressocyparis leylandii 'Castlewellan Gold' | Castlewellan Gold Leyland cypress | Garden origin | Wales Champion 2017 | West side of house by path | ST 15014 77705 | Insole Court | 515 | |||
| Xanthocyparis nootkatensis 'Pendula' | Weeping Nootka cypress | Garden origin | South west of the house | ST 15016 77671 | Insole Court | 580 |