Manual of Riyadh Plants

Part 1: Introduction

The Use of the manual:

This manual is targeted for the use of urban and regional

planners, garden designers, landscape designers and those who

are seeking guidance on the selection of plant species for urban

and regional development projects. The manual provides an

overview about species suitable for farming in Arriyadh region.

In part three, planting phase is used to classify

the plant, it may include:

Annuals :

plants that perform their entire life cycle from

seed to flower to seed within a single growing season. All

roots, stems and leaves of the plant die annually.

Biennials:

plants that require two years to complete their

life cycle. First season growth results in a small rosette of

leaves near the soil surface. During the second season›s

growth stem elongation, flowering and seed formation occur

followed by the entire plant›s death.

Perennials :

Plants that persist for many growing seasons.

Generally the top portion of the plant dies back each winter

and regrows the following spring from the same root system.

Many perennial plants do keep their leaves year round and

offer attractive borders and groundcover.

Perennial Plant is categorized according to its growth nature

and vegetative size and branching patterns, as follows:

Tree:

trees with an elongated stem, or trunk, supporting

branches and leaves in most species.

Shrub:

woody perennial plants with multiple stems arising

at or near the base.

Sub-shrubs:

a short woody perennial plants which are

shorter and smaller than shrubs.

The Book was devided into four parts as

follows:

Part One:

Introduction: this section explains the use of the

manual, symbols, colours and any abbreviations used. It also

discusses the important aspects of climate and salinity.

Part Two:

Ground Covers - Terrestrial Plants From A to

Z: this section includes photographs of more than 380

plant species. These plants have been selected for use in

landscaping works and are set out in alphabetical order.

Taxonomy information is also provided. The trees, shrubs

and plants are described in detail, as well as a full description

of their use and basic information about origin, nature and

growth conditions.

Part Three:

Quick Selection Lists: this section includes plant

lists for use as an easy guide for designers and researchers

seeking plant species for certain specific purposes. The

section shows what, when and how to use plants including

plants suited for the needs of designers, researchers and other

users of this manual.

Part Four:

Index: The index includes the plant lists with their

scientific names in Latin and English ranked alphabetically

with page numbers to facilitate the direct search by plant

name.