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Garden Trees
Garden Trees
Garden Trees
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Garden Trees

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The only guide you need for choosing, planting and caring for beautiful trees in your garden. Filled with helpful photography and easy-to-follow tips, this essential book will make a successful gardener out of any complete beginner.

Trees display wonderful foliage that can liven up any garden, but which will best suit yours? And how will you plant them once you get them home? Gem Trees answers these questions and more, providing comprehensive information on caring for trees.

A substantial introduction covers:
• the basics of plant care
• buying trees
• planting
• pruning

The comprehensive directory covers further details for over 100 of the most popular trees, including different species of conifer:
• where to site
• height and spread
• seasonal guide
• tips for care and maintenance

The fresh, clear design is easy to follow, and full-colour photography throughout enables quick identification of plants.

This easy-to-use guide will give you the confidence you need to raise a healthy and attractive tree garden.

LanguageEnglish
Release dateMay 24, 2012
ISBN9780007483693
Garden Trees

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    Book preview

    Garden Trees - HarperCollins UK

    Garden Trees

    Keith Rushforth

    Contents

    Cover

    Title Page

    How to use this book

    Introduction

    Caring for garden trees

    Growing Conditions

    Soil Preparation

    Choosing and Buying Trees

    Container-Grown Plants

    Bare-Rooted Plants

    Rootballed Plants

    Planting Techniques

    Transplanting

    Mulching

    Feeding and Watering

    Pruning

    Evergreen Trees

    Dead-Heading

    Pests and Diseases

    A-Z directory of plants

    Abies

    Acacia

    Acer

    Aesculus

    Ailanthus

    Alnus

    Amelanchier

    Aralia

    Araucaria

    Arbutus

    Betula

    Buddleja

    Buxus

    Calocedrus

    Carpinus

    Castanea

    Catalpa

    Cedrus

    Cercidiphyllum

    Cercis

    Chamaecyparis

    Cladrastis

    Cornus

    Corylus

    Cotinus

    Cotoneaster

    Crataegus

    Cryptomeria

    Cunninghamia

    Cupressus

    Cydonia

    Davidia

    Drimys

    Elaeagnus

    Embothrium

    Eucalyptus

    Eucryphia

    Euonymus

    Fagus

    Ficus

    Fraxinus

    Fremontodendron

    Garrya

    Ginkgo

    Gleditsia

    Halesia

    Hamamelis

    Hibiscus

    Idesia

    Ilex

    Juglans

    Juniperus

    Laburnum

    Larix

    Laurus

    Ligustrum

    Liquidambar

    Liriodendron

    Luma

    Magnolia

    Mahonia

    Malus

    Mespilus

    Metasequoia

    Morus

    Nothofagus

    Nyssa

    Olea

    Ostrya

    Oxydendrum

    Parrotia

    Paulownia

    Phellodendron

    Phillyrea

    Photinia

    Picea

    Pinus

    Pittosporum

    Platanus

    Podocarpus

    Poncirus

    Populus

    Prunus

    Pseudolarix

    Pseudotsuga

    Ptelea

    Pyracantha

    Pyrus

    Quercus

    Rhododendron

    Robinia

    Salix

    Sambucus

    Sassafras

    Saxegothea

    Sequoia

    Sequoiadendron

    Sophora

    Sorbus

    Stewartia

    Styrax

    Syringa

    Tamarix

    Taxodium

    Taxus

    Thuja

    Thujopsis

    Tilia

    Toona

    Trochodendron

    Tsuga

    Ulmus

    Umbellularia

    Wisteria

    Zelkova

    Searchable Terms

    Copyright

    About the Publisher

    HOW TO USE THIS BOOK

    This book is divided into two parts. The first chapter guides you through the basic care of trees. The majority of the book is given over to the plant directory, which provides individual entries on the best tree species to grow, listed alphabetically by Latin name. The example entry below is annotated to show you what information each section provides.

    INTRODUCTION

    The main reason for having trees in the garden is for their display of foliage. This can take on a bewildering array of shapes and sizes and may also provide great seasonal colour. Flowers, fruit and bark on many trees add inspirational colour and interest to a garden throughout the year too. A few trees are also grown for the exquisite scent they produce. Given their size and permanence, trees will often provide form and structure in a garden, which means that the shape or habit of each one is very important as well.

    As you can see, trees provide a wealth of interest in gardens and this book offers you all the information you need on a large selection of the top specimens. Armed with its thoroughly practical advice, you will be able to enjoy your chosen garden trees throughout the year.

    CARING FOR GARDEN TREES

    This chapter gives you all the information and advice you need to choose and care for garden trees.

    GROWING CONDITIONS

    Before you buy any plants, it is important to assess the type of garden you have.

    Aspect and exposure

    Does your garden face north, south, east or west? This affects which parts will get the most, or least, sun. The degree of exposure that your garden experiences is another determining factor in what plants will grow.

    Soil

    Each type of soil can vary greatly in drainage capacity, fertility and chemical composition. Soils can be alkaline, acidic or neutral (pH testing kits are available from garden centres) but each type can be improved by the addition of organic matter.

    Syringa vulgaris likes alkaline soils.

    SOIL PREPARATION

    Before buying and planting any trees, make sure the soil is in as good a condition as possible.

    Compacted soil

    Trees cannot grow in compacted soil. If you discover you have compacted soil you will need to remove about two fork depths of soil, break up the subsoil underneath with a pickaxe then replace the topsoil.

    Waterlogging

    Waterlogged soil can kill a plant by drowning the roots. It is often caused by compaction or poorly draining soils – such as clay. With such soils, digging in organic matter and applying a layer of organic mulch will help to improve drainage.

    Weeds

    Control weeds before planting to ensure new plants are not competing for nutrients. Larger weeds can be removed by hand or by forking over the soil. Perennial weeds need treatment with a chemical weedkiller.

    TIP: If you dislike using chemicals, you could try laying sheet mulches for several weeks or months before planting to kill off the weeds or use an organic mulch.

    CHOOSING AND BUYING TREES

    Trees come in a wide range of shapes and sizes. Creating the effect you want in the garden requires careful consideration.

    Selecting your plants

    Few trees are in flower or fruit for more than a couple of weeks a year so the form of each tree, and the eventual height and spread it will achieve when mature, are equally important.

    Once you have decided on the basic forms you prefer, the next stage is to draw up some design ideas for how to incorporate trees into the overall scheme. Apart from their decorative features, trees can be planted as hedging or screening, to mark out areas of the garden and to give shade and shelter.

    Buying trees

    Trees can be bought from a variety of sources – garden centres, general and local nurseries, and specialist nurseries – and are available as container-grown, bare-rooted or rootballed.

    CONTAINER-GROWN PLANTS

    Plants grown in containers have their root system intact, which means they should thrive when planted out. The main drawback is that container-grown trees can become ‘potbound’ if left for too long. With potbound plants you will find the roots have filled the container and started to find a way out; such plants are unlikely to establish a new root system when they are planted out.

    BARE-ROOTED PLANTS

    Bare-rooted trees weigh much less than container plants so are easier to transport. The main drawback is that much of the root system is left in the nursery soil, which means they can be slow to establish in a new position.

    ROOTBALLED PLANTS

    Rootballed trees are nursery-grown plants that have been lifted with the soil still attached to the roots. To stop the soil falling off, which would cause the roots to dry out, the ball of soil is wrapped in hessian or a coarse cloth. For some items, buying a rootballed tree is a good compromise between the relative cheapness of bare-rooted stock and the expense of container-grown plants.

    PLANTING TECHNIQUES

    No tree likes to be planted deeper than it has been growing. Always plant at the soil mark on the stem made by the nursery soil or at the level of the container. If in doubt, plant on the shallow side.

    Container-grown plants

    Before planting container-grown plants, trim back any damaged top portions to good shoots and check to see if the compost has dried out. If it has, leave it to soak in a bucket of water for an hour or two. Do not leave it soaking too long or you will kill all the fine roots. Container-grown stock can be planted at any time of the year, but if planted during the summer months will require regular watering.

    To plant a container-grown tree Dig a hole of the correct depth but ensure it is at least 5cm (2in) wider than the container. Remove the tree from its pot. If the roots have formed a circular mass in the bottom of the pot, tease them out so they spread as widely as possible. If there are woody circling roots that cannot be teased out, cut them with secateurs at three points equally spaced around the circle to allow new roots to form. This will prevent the roots growing in a circling manner (trees with such roots usually end up blowing over). Replace the soil in layers no more than 10–15cm (4–6in) thick. Firm each layer with the ball or toes of your feet but avoid firming with the heel (as this will almost certainly cause compaction of the soil).

    Planting a hedge

    Spacing of hedging plants will depend upon how long you can wait for the hedge to thicken and what its purpose is – a hedge intended to keep animals in (or out) will need stems closer together than a purely visual hedge. Generally, spacings of between 0.5m (1½ ft) and 1m (3ft) are suitable. For a thicker hedge, double plant with two alternating rows.

    Bare-rooted plants

    Bare-rooted trees should only be planted when dormant, between late autumn and early spring. If in leaf, the plant will not be able to absorb enough water to compensate for the loss of roots. If the roots are dry, soak them in a bucket

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