HORT: Horticulture

The Tree Book is the go-to reference to more than 2,400 species and cultivars. The featured trees include those widely available in the nursery trade, some new and promising choices, and a selection of overlooked options that deserve renewed interest. Each tree profile includes the common and botanical names along with details on foliage; flowers, seeds, fruits, and cones; native range; adaptability; and popular uses in landscapes.

This full-color, simple-to-use field guide makes shrub identification easy and fun. It features 100 of the most common shrubs that grow in and around Pacific Northwest forests--from southern British Columbia to northern California and from the Pacific Ocean to the northern Rockies.

The definitive guide to botanical Latin, the Gardener's Botanical contains definitions of more than 5,000 plant names along with more than 350 color illustrations. This guide is arranged in alphabetical order; each word is listed with a pronunciation guide, definition, example plant, and, where appropriate, etymology.

Botanical names can be baffling to even the most experienced gardener. But a plant's botanical name is more than just a handy label--it can tell a plant's country of origin, the shape of its leaves, the color of its petals, and much more. The A to Z of Plant Names clears the confusion and allows every gardener to name plants with confidence. This comprehensive yet handy guide features the botanic names of the plants that gardeners really grow. Additional information includes suggested pronunciation, the common name, the derivation of the scientific name, the number of species currently accepted, the type of plant and the distribution.

There are 26 titles by Gertrude Jekyll in the Internet Archive. They are available to read online, to download, etc.

Not an online book, but one of the few books available on landscape architecture and Canada.

Lord & Schryver, the first landscape architecture firm founded and operated by women in the Pacific Northwest, designed more than two hundred gardens in Oregon and Washington, including residential, civic, and institutional landscapes.

A new generation of Chinese landscape architects, that has hardly been registered outside China, is emerging: innovative, optimistic, radical, yet rooted in local context and tradition. Thanks to their international experience in training and practice, they seamlessly combine eastern and western influences to create something new. They design open spaces in high-density cities and revitalize remote rural areas. Their projects are characterized by interaction and change.

Not an ebook but a classic so it's included here!