Ulmus 'Toledo'
| Ulmus 'Toledo' | |
|---|---|
 'Toledo' | |
| Genus | Ulmus |
| Cultivar | 'Toledo' |
| Origin | Spain |
The elm
DNA analysis revealed that the clone also had Ulmus pumila DNA, the species introduced to Spain at the end of the 16th century,[1] and has consequently been dropped from the research programme.[2]
'Toledo' was introduced to the UK in 2020 as part of an assessment by White-letter Hairstreak.[2]
Description
'Toledo' grew at a comparatively fast rate of 89 cm per annum in the trials at Puerta de Hierro, Madrid. The erect branches form an irregular crown and are devoid of corky tissue. The leaves, on 6 mm
ovate, typically acuminate at the apex, the average length and width 47 × 27 mm, the margins doubly serrate. Foliar density relative to 'Sapporo Autumn Gold' is described as 'high'. In the Madrid study, the appearance of the tree was rated 2.9 / 5. [1]
The leaves flush in early April (week 14) in southern England.
Pests & diseases
'Toledo' was found to have a very high resistance to Dutch Elm Disease, on a par with, if not greater than, the hybrid cultivar 'Sapporo Autumn Gold'.[1]
Accessions
- Europe
- Grange Farm Arboretum, Lincolnshire, UK. Acc. no. not known.
- Great FontleyFarm, Hampshire, UK. Butterfly Conservation elm trial plantation. One small sapling planted 2020.