I, Buxus
A Cultural History of the Tree of Afterlife
Mozaika
Łąka w ogrodzie
Plant Exploration for Longwood Gardens
A history of plant collecting expeditions in the second half of the twentieth century.
When Perennials Bloom
An almanac for planning and planting
Trees of Pennsylvania
A complete reference guide
The Plants of Pennsylvania
An illustrated manual
Aquatic Plants of Pennsylvania
A complete reference guide
Victoria: The Seductress
A cultural and natural history of world's greatest waterlily.