The larger shipped trees will "provide an instant impact when planted", said Lucas, adding that the Ulmus americana 'Princeton' is "incredibly tolerant of Dutch elm disease, and although it has a larger leaf than our classic tree, it has an equally beautiful shape, making it ideal for planting either as a specimen tree or in avenues".
"From landscaped parks to individual gardens, the nation really seems to have taken this cause to its heart and I have been overwhelmed by the huge level of interest and support we are receiving."
Bareroot maiden trees (180cm) are £76 inc VAT but not delivery.
"Whilst the English elm that featured in so many of John Constable's classic paintings is no longer a part of the national landscape, I hope that this Princeton Elm will, in time, be planted in sufficient numbers to restore the elm throughout the British Isles."
Bareroot maiden trees (180cm) are £76 including VAT but not delivery. Standard trees (330cm, 3.75cm girth) are £112. The sold-out whips will be back in stock in January 2009 at around £35.