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Duration (approx) 1500 hours
Qualification Associate Diploma

A comprehensive horticultural qualification for the serious horticulturalist.

Become a horticulture expert!

  • A course that focuses on learning rather than assessment
  • Strong emphasis on plant knowledge and science
  • After finishing, option to upgrade to an advanced diploma with an additional 10 modules.

Taught and written by world leaders in horticulture. 

Develop your understanding of horticulture. 

Well respected qualification; developed and taught by industry leaders for decades.








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Train for a Change in Career and Lifestyle.

Horticulture is for most horticulturists more than just a career. It is a passion and lifestyle. This is an industry where people enjoy the luxury to be paid for something theuy love doing; and to work at something that doesn't end abruptly when you retire.

Learn from world leaders in horticulture with this distance learning course Associate Diploma in Horticulture.

ACS has been teaching horticulture for over 30 years and provides a range of unique support services including prompt unrestricted access by phone and email to around a dozen highly qualified and experienced horticulturists.


The Associate Diploma has two parts:

Stage 1:  Eight Modules

These eight modules form the Advanced Certificate in Horticulture.

If you simply complete these eight modules and go no further you may attain an Advanced Certificate.  Each module takes approximately 100 hours to complete, so the estimated duration for the eight modules is 800 hrs (minimum).

 Stage 2:  Seven Modules

All of these are available online, or by distance education.  Once again, each module takes approximately 100 hours to complete, so the estimated total duration of the seven modules is 700 hours (minimum).

In order to obtain an ACS Associate Diploma in Horticulture, you need to:

  • Show proof of a prerequisite certificate (e.g. Submit a photocopy of an acceptable certificate obtained prior to these studies);
  • Satisfactorily complete all set assignments
  • Successfully complete exams with ACS in all of the 15 modules

    (This is Part 1 of the Associate Diploma in Horticulture)

    To complete this you must under take all of the modules listed below.

    If you want to achieve an ACS Advanced Certificate, you can simply complete the modules listed below and undertake an ACS practical examination in your home locality.

    Core Modules

    Elective Modules 

    You will need to choose one of the below streams

    Crops Stream
    Plus one Crop module of your choosing
    Landscaping Stream
    Plus one Landscaping module of your choosing
    Amenity Horticulture Stream
    The  Advanced Certificate is considered as being the first half of this Associate Diploma; and as such you are expected to have studied everything in that course before commencing the subjects below.

    Plant Ecology

    Plus one Crop module of your choosing
    Plus one Landscaping module of your choosing 

    Core Modules


    There are 10 lessons in this course:

    1. Introduction to Propagation
      • Asexual and sexual propagation
      • Aseptic Micropropagation, Runners, Suckers, Layering, Separation, Division, Grafting, Budding, Cuttings, Seed
      • Genotype versus Phenotype
      • Plant life cycles -phases of the sexual cycle; phases of the asexual cycle
      • Annual, Perennial, Biennial Life Cycles
      • Propagation Terminology
      • Nursery production systems
      • Operational Flow Chart for Seed Propagation
    2. Seed Propagation
      • Seed Sources
      • Maintaining Genetic Identity of Seed -Isolation, Rogueing, Testing, Hand Pollination
      • Hybrid Seed Production
      • Storing Seed
      • Types of Seed Storage
      • Seed Biology -Endospermic, Non Endospermic
      • Dormancy Factors Affecting Germination
      • Germination Treatments -boiling water, stratification
      • Terminology
      • Seed Raising Technique
    3. Potting Media
      • Characteristics of Potting and Propagating Media
      • Media derived from rock or stone
      • Media derived from synthetics
      • Organic Media
      • Soil Media
      • The UC System
      • Chemical Characteristics -eg. pH, Cation Exchange Capacity, Salinity, Conductivity
      • Laboratory Testing of Media
      • Physical Characteristics
      • Potting Mixes
      • Propagating Media
      • Nutrition at the Propagation Stage
      • Nutrition Management and Fertiliser Application
    4. Vegetative Propagation I
      • Reasons to propagate by cuttings
      • Types -softwood, hardwood, semi hardwood, herbaceous
      • Stem Cuttings, Tip, heel, nodal, basal
      • Leaf and Leaf-bud cuttings
      • Cane cuttings
      • Root Cuttings
      • Bulb Cuttings
      • Hormone Treatments for Cutting Propagation
      • Other Cutting Treatments; basal wounding, anti-transpirants, fungicides, disinfectants, mycorrhyza, etc
      • Artificial Light for Propagation
      • Cutting Propasgation Efficiency
      • Rockwool Propagation
    5. Vegetative Propagation II
      • Care of stock plants
      • Layering
      • Division
      • Terminology
      • Managing Watering
    6. Vegetative Propagation III
      • Terminology
      • Budding and grafting
      • Reasons for Grafting
      • How a Graft forms
      • Grafting Techniques; Types of Grafts
      • What Plant to Graft on What
      • Grafting Materials
      • Root Grafting, Bench Grafting, Soft Tissue Grafting
      • Establishing Rootstocks
      • Tissue culture: Applications, Problems, Nutrient Media, Cleanliness, Growing Conditions
      • Tissue Culture Procedures and Techniques
      • Laboratory Requirements
      • Terminology
      • Biotech applications in Horticulture
    7. Propagation Structures and Materials
      • Growing in a Greenhouse
      • Growing Structures: Types of Greenhouses, Cold Frames, Shadehouses
      • Propagating equipment -Heaters, Bottom Heat, Misting, Light Control, Benches etc
      • Managing a Greenhouse
    8. Risk Management
      • Nursery hygiene
      • Risk assessment and management
      • Safety -tools, equipment handling, electricity, etc
      • Pest and Disease Management
      • Environmental Problems and management
    9. Nursery Management I
      • Plant modification techniques
      • Management policies
      • Keeping Propagation Records
      • Nursery Production Systems
    10. Nursery Management II
      • Nursery standards, cost efficiencies, site planning and development


    There are 8 lessons in this course:

    1. Physical and Chemical Properties of Soils
      • How soils develop
      • The main rock forming minerals: silicates, carbonates, oxides and sulphates
      • Types of rock: igneous, sedimentary, metamorphic
      • Denitrification, immobilisation, mineralisation and ammonium fixation
      • Understanding soil function: plant nutrition, support, water and air supply
      • Naming a soil
      • Improving soils for plant culture
      • Organic matter
      • Plant nutrition
      • Nutrient availability and pH
      • Cation exchange capacity
      • Conductivity
      • Salinity build up
      • The nutrient elements
      • Major elements and minor elements
      • Total salts
      • Diagnosing nutrient problems
      • Fertilisers
      • Composting
    2. Soil and Plant Tissue Test Methods
      • Soil sampling
      • Common soil tests: pH, texture, structure, etc
      • Tissue analysis
      • Different methods od measuring pH
      • Water content of soil
      • Fertiliser solubility
      • Testing the effect of lime
      • Laboratory testing of soils
      • Measuring salinity
      • Colorimeters
      • Bulk density
      • Understanding soil analysis
      • Deciding when and how to test
    3. Soil Science and Health
      • Organic carbon
      • Available phosphorus
      • Soil colour
      • Texture and its affect on plant growth
      • Structure and its affect on plant growth
      • Consistence: affect on plant growth
      • Depth of profile, pH, porosity and other things affecting plant growth
      • Soil classification and description: different horizons
      • Factors affecting soil formation: parent material, climate, ecosystem, etc
      • Weathering processes in soil formation: physical, chemical, geochemical
      • Pedochemical weathering
    4. Container Growing
      • Introduction
      • What to grow
      • Problems with containers
      • Care of containers
      • Comparing materials: plastics, terracotta, fibreglass, etc
      • Aesthetics of containers
      • Potting up
      • Potting mixes
      • Ideas for container gardens
      • History of potting mxes
      • UC mixes
      • Soilless mixes
      • Testing for toxins in potting media
      • Propagating media
      • Problems with Organic materials in media
      • Coir
      • Rockwool
      • Components of potting media
      • Cleanliness with soils and potting media
      • Hydroponics
    5. Land Degradation and Other Soil Problems
      • Chemical damage to soil
      • Builders rubbish in soils
      • Salinity
      • Dogs or cats urinating
      • Growing plants in dry areas
      • Soil degradation
      • Erosion
      • Salinity
      • Acidification
      • Compaction
      • Chemical residues
    6. Soil Management Applications
      • Aims of soil management
      • Soil management in orchards
      • Fertilizer application
      • Soil covers
      • Soil management for Vegetables
    7. Organic Techniques and Soil Management
      • What is organic growing
      • Organic principles for overcoming soil problems
      • Natural plant nutrition
      • Trace elements
      • Earthworms
      • Types of mulch and its use
      • Nutrition managementin a plant nursery
      • Applying liquid fertilizers
      • Organic fertilizers
      • Natural fertilizers
      • Mineral rock fertilizers and soil conditioners
      • Apatite phosphate rock
      • Dolamite
      • Gypsum
      • Soil management in market gardens
      • Crop rotation
      • Determining kind and quantity of fertilizer to use
      • Cover crops
    8. Soils and Managing Earthworks
      • Eath forming
      • Machinery
      • Creating mounds
      • Sources of "fill"
      • Drainage
      • Improving drainage
      • Improving surface drainage after construction
      • Designing a drainage system
      • Improving permeability during construction
      • Layout of drains
      • Types of drains


    The course is divided into 10 lessons as follows:

    1. Taxonomic Classification of Plants - History of taxonomy, Binomial system, Levels of classification, Families, Principle of priority, Name changes, Hybrids, Varieties, Cultivars, Abbreviations, Botanical keys, Key to Phyla, etc.
    2. Cells and Tissues - Types of Plant Cells, Plant Tissue, Primary and Secondary Growth
    3. Specific Vegetative Parts of a Plant - Stem Formation, Leaf Structure and Leaf Arrangement, Root Structure
    4. Flowers and Fruit - The Flower, Inflorescence (panicle, umbel, composite head), fruits (simple, aggregate, multiple), Reproductive Growth and Development
    5. Seed and the Developing Embryo - Seed Structure, Food Storage Organs, Seed Coats, Embryo, Seed Germination, Requirements, Stimulants, Inhibitors
    6. Photosynthesis and Growing Plants - Photosynthetic Apparatus, Process, Gas Exchange, Light transformation to Energy
    7. Respiration - Stages of Respiration, the Krebs Cycle, Electron Transport Chain, Rate of Respiration, Control of ATP Production in Respiration
    8. The Role of Water - Osmosis, Water Movement from Soil to Root, The Transpiration Stream
    9. Movement of Water and Assimilates through a Plant - Mechanisms of Nutrient Uptake, Absorption and Transport of Mineral Nutrients, Translocation of Sugars, Adaptations for Water Storage, Food and Water Storage Organs
    10. The Effects of Tropisms and Other Growth Movements - Plant Hormones, Tropisms, Chemical Growth Modifications.


    There are ten lessons in this module, as follows:

    1. Introduction

    2. Overview of Preventative Controls

    3. Insecticides

    4. Other Pesticides

    5. Spray Equipment

    6. Insect Biology

    7. Fungal Biology

    8. Environmental Problems

    9. Viruses

    10. Nematodes, Molluscs and Crustaceans

    Elective Modules


    1. This course has ten lessons.

    2. Crop Production Systems

    3. Organic Crop Production

    4. Soils and Nutrition

    5. Nursery Stock Production

    6. Tree Fruit Production

    7. Soft Fruits Production

    8. Vegetable Production

    9. Cut Flower Production

    10. Herbs, Nuts and Miscellaneous Crops

    11. Crop Production Risk Assessment


    There are 7 lessons in this course:
    1. Structures for Protected Cropping
    2 Environmental Control
    3. Cladding Materials and their Properties
    4. Irrigation and Nutrition
    5. Relationship between Production techniques and Horticultural practices
    6. Harvest and Post Harvest Technology
    7. Risk Assessment


    There are 10 lessons in this module as follows:

    1.Site Appraisal, Interpretation and Risk Assessment

    2.Preparing Site Plans and Specifications

    3.Influence of Site Characteristics

    4.The Use of Hard Landscape Features

    5.Setting out a Site to Scale Plans and Drawings

    6.Soil Handling and Storage

    7.Land Drainage Systems

    8.Ground Preparation Techniques

    9.Construction of Paths and Patios

    10.Construction of Steps, Ramps, Dwarf Walls and Fences


    There are 8 lessons in this module as follows:

    1. Landscape History & Design Styles
    2. Surveying the Site
    3. Assessment of Plantings and Features
    4. Selecting Components for Retention
    5. Work Programming and Risk Management
    6. Drainage
    7. Hard Landscape Feature Restoration
    8. Planting Restoration and Maintenance


    The are 10 lessons are:
    1. Introduction
    What to plant where, Plant selection, Plant varieties, Colourful year round foliage, Establishment (timing, soil preparation, plant size, planting technique), Maintenance programs, etc

    2. Woody plants
    Selecting woody plants, trees, shrubs, deciduous/semi deciduous/evergreen; flowering shrubs, Establishing woody plants, Planting procedure, Dealing with shade, etc

    3. Windbreaks, hedges and screens
    Plant selection, establishing windbreaks & screens, Trimming a hedge, etc

    4. Alpine and water plants
    Selecting & establishing alpines, Selecting water plants, Establishment & maintenance of water plants

    5. Annual and herbaceous plants
    Selecting annuals, Types of annuals (by height, flower, edge plants, dot plants, groundwork plants), types of bedding schemes, Planting seed or seedlings, Container culture, Selection & Establishment of herbaceous plants (Bulbs & Perennials), Maximizing flowering effect, etc

    6. Turf
    Varieties, Lawn mixes, What to grow where, Wildflower Meadows, Turf establishment, Soil Preparation, Seeding, Sodding, Stolonizing, Sprigging, Plugging, Mowing, Fertilising, etc

    7. Maintenance
    Fertilizing, Managing pH, Replacing plants, Pruning, Irrigation, Humidity, Mulch, Developing a maintenance Program,

    8. Pest and disease control
    Problem prevention, Non chemical control, Chemical control,

    9. Weed control
    Non chemical control, Chemical control, Safety, Alternative strategies.

    10. Risk assessment
    Identifying risk, Duty of care, Workplace safety, Protective clothing, Safety with tools, Significance of illness, etc


    There are eleven lessons as follows:

    1. Introduction - Benefits of turf, History of Turf, Turf Varieties (Bent, Couch, Buffalo, Fescues, Rye, Carpet grass, Kikuyu, Brome, Bluegrass, Philaris, etc), Lawn mixes
    2. Turf Grass Physiology -Morphology, flower, stems, leaves, roots, Other characteristics, How to identify grasses, Plant Keys, Identifying short cuts, etc.
    3. Turf Establishment -Soil preparation, Seeding, Sodding, Stolonizing, Sprigging, Plugging, Chitted Seed, Drainage, Work scheduling, Estimating costs.
    4. Soils -Understanding soil, Texture, Soil blends, Structure, pH, Buffering capacity, Improving Soils, Choosing soils, Calculating soil quantities, Cation exchange, Plant nutrients, Fertilisers, etc.
    5. Turf Weed Problems -How weeds spread, Non chemical controls, Chemical controls, chemical safety
    6. Turf Pests & Diseases -Chemical and non chemical controls, Common turf health problems (Environmental, Nutrition, Pest, Disease)
    7. Turf Maintenance Techniques - Mowing, Mowers, Length of Cut, Getting a clean cut, pattern of cutting, cutting on slopes, after cutting, Mower safety, Aeration, Coring, Scarification, Spiking, etc.
    8. Irrigation - An Overview : Water loss from soils, Improving water retention, Movement of water in soil, Field capacity, Estimating water needs of turf, Watering turf, When to irrigate, Irrigation rate, Types of irrigation, etc.
    9. Playing Fields & Bowling Greens -Gradients and dimensios for different surfaces (ornamental, types of sports etc), Construction of a playing field, Sand based technology, Golf Courses, Cricket Wickets, etc.
    10. Managing Established Turf - Mowing, Watering, Topdressing, Fertilizing, Weed and Pest control.
    11. Establishing Ornamental Turf -Assessing the site, Developing Plans, Preparing a budget, etc


    This subject involves eight lessons as follows:

    1.Nursery Site Organisation

    • Selecting the site (eg. Buying an established nursery or establishing a new site)
    • Determining facilities needed
    • Site planning
    • Estimating space requirements.

    2. Management

    • Public and Commercial nurseries
    • Management Options; Partnerships, companies, sole proprietorships
    • Developing a management structure
    • Labour relations and seasonal staff
    • Work programs and production timing.

    3. Nutrition and Pest Management

    • Field crops
    • Container plants
    • Principles of fertiliser use
    • Plant nutrition.

    4. Growing Media

    • Soils and soil-free mixes
    • Rockwool
    • Sterilisation techniques.

    5. Irrigation Management for Production Nurseries

    • Methods and equipment
    • Estimation of water requirements
    • Use of liquid fertilisers through irrigation.

    6. Modifying Plant Growth

    Growth modification techniques

    Flower forcing

    Quality control.

    7. Nursery Marketing Strategies

    • Exploiting existing markets
    • Developing new markets
    • Advertising
    • Product presentation
    • Pricing
    • Plant recycling.

    8. Selection of Nursery Crops

    • Developing a stock list
    • Operational flow charts
    • Market surveys.


    This module consists of 8 lessons :

    1. Introductory Ecology
    2. Plant Communities
    3. Plants and their Environment
    4. Plants, Soils & Climate
    5. Plant Adaptations to Extreme Environments
    6. Manipulating Plant Environments
    7. Environmental Conservation
    8. Environmental Organisations, Assessment and Funding


    There are ten lessons in this course as follows:

    1. Horticultural Business Structures

    2. Management Theories and Procedures

    3. Horticulture & The Law

    4. Supervision

    5. Financial Management

    6. Staff Management

    7. Improving Plant Varieties

    8. Productivity and Risk

    9. Managing Physical Resources

    10. Developing an Horticultural Business Plan


    There are 7 lessons in this module as follows:

    1. The Scope and Nature of the Plant Breeding Industry

    • What is Plant Breeding
    • Scope of the Modern Industry
    • Sources of Genetic Material
    • Germplasm Preservation
    • Botanic Gardens, Plant Breeding Organisations, Research Bodies

    2. Introduction to Genetics

    • Review of Plant Genetics Linkage and Crossing Over
    • DNA
    • Homologous Chromosomes
    • Cell Biology -cell components, cell wall, nucleus
    • Protein Synthesis
    • Plant Anatomy
    • Plant Genetics, Mendel's Principles and Experiment
    • Genetic Terminology
    • Gene Linkages

    3. Gamete Production, Pollination and Fertilisation in Plants

    • Phases of Plant Reproduction
    • Gamete Production
    • Gene Mutation
    • Sources of Genetic Variation: Polyploidy, Bud Sports and Chimeras
    • Male Sterility
    • Effect of Environment
    • Use of Pollination Biology in Plant Breeding: Pollination Process, Pollination Requirements, Cross Pollination, Fertilisation, Male/Female Recognition, Overcoming incompatibilit, Post Fertilisation, Pollen Selection, Floral Introduction etc.
    • Mitosis and Meiosis
    • Genes
    • Sexual Structures in Plants: Flowers, Fruit, Seed

    4. Mono Hybrid and Dihybrid Inheritance in Plants

    • Mono hybrid Crosses
    • Dihybrid Crosses
    • Gene Linkages
    • Crossing Over
    • Recombination
    • Quantitative Traits
    • Terminology

    5. Systematic Botany and Floral Structures

    • Systematic Botany
    • Plant Morphology
    • Type Specimins
    • Floral Diagrams
    • International Botanical Code
    • Binomial System; Genus and species
    • Hybrids, Varieties, Cultivars
    • Name Changes
    • Nomenclature of hybrids
    • Using Botanical Keys

    6. Practical Plant Breeding Techniques

    • Plant Breeding Programs
    • Breeding Self Pollinated Crops
    • Pure Line Breeding
    • Mass Selection
    • Pedigree Breeding
    • Bulk Population Breeding
    • Breeding Cross Pollinated Crops
    • Single Plant Selection
    • Mass Selection
    • Progeny Selection
    • Line Breeding
    • Recurrent Selection
    • Backcross Breeding
    • Induced Polyploidy
    • Hybrid Seed Production
    • Dormancy Factors Affecting Germination (eg. hard seeds, impermeability to water, Chemical inhibitors, Undeveloped embryos, etc)

    7. Current Developments in Plant Genetics

    • Plant Biotechnology
    • Genetic Engineering
    • DNA Markers
    • Somatic Hybridisation
    • Micropropagation
    • Plant Breeders Rights
    • Trade Marks, Patents


    There are 10 lessons in this module as follows:

    1. Flower physiology
    The flowering response
    Genes control flowering
    Physiological age
    Minimum leaf number

    2. Phytochrome
    Light sensing systems
    Blue light responses
    Red light responses
    Other light responses
    Photoreceptor forms: Pr, Pfr
    How molelcules changeRelevance to commercial horticulture
    Controlling light

    3. Phytoperiodism
    Measuring light
    What wavelengths do plants need
    Typical photoperiod responses
    Photoperiodic responses in seasonal flowering plants
    Photoperiodic classification of plants: short day plants, long day plants, day neutral plants
    Detection of photoperiod
    Critical photoperiod and flowering
    Research facts
    Other photoperiodic effects

    4. Control of flower bud initiation and development
    Stages in flower bud growth
    What can affect flower bud initiation
    Effect of temperature on growth and flowering
    Research reports or reviews of specific plants

    5. Dormancy
    Dormancy in plants
    Abscisic acid and dormancy
    Breaking dormancy
    Dormancy in seeds
    Factors affecting seed dormancy
    Breaking seed dormancy

    6. Effects of plant associations and competition
    Plant herbivore and pathogen interactions
    Crop spacing and crop yeilds
    Crop canopy and plant density
    Impact of weeds
    Protected environments

    7. Respiration and post harvest physiology
    Aerobic respiration
    Anaerobic respiration
    Bioluminescene and Fluorescence
    Post harvest respiration

    8. Post harvest storage, transport, retailing and shelf life
    Effect of growing conditions on post harvest life
    Controlled storage conditions: temperature, atmosphere, humidity
    Normal atmospheric conditions
    Controlled and modified atmospheres
    Effect of oxygen levels Effect of carbon dioxide levels
    Controlling ethylene levels
    Modified Atmosphere Packaging
    Commodity transport
    Retailing and shelf life

    9. Endogenous and synthetic growth regulators
    Nature of plant hormones
    Auxins: IAA, IBA, NAA
    Gibberellins: natural and synthetic
    Cytokinins: over 130 different types
    Abscisic acid
    Other homones: anti auxins, growth inhibitors, growth retardants, defoliants, growth Stimulators, non standard hormones
    Controlled ripening and degreening

    10. Risks involved with plant growth manipulation
    Commercial risks
    Human health and safety risks
    Plant pathology risks
    Ecological risks
    Genetic modification
    environmental hazards
    Human hazards


    1. Materials and Equipment
    2. Horticultural Calculations
    3 Practical Risk Management
    4. Machinery and Equipment Assessment and Maintenance
    5. Propagation Management
    6. Hard Landscape Maintenance
    7. Soft Landscape Maintenance
    8. Practical Plant Identification Techniques
    9. Pest, Disease and Weed Control
    10. Identifying plant tissues
    11. Planning -identifying needs for management of horticultural sites.

    Benefits of Studying This Course

    This course builds on our Advanced Certificate in Horticulture. It allows students to go into further depth and add some more science based modules to their repertoire. The upshot is a thorough grounding in horticulture which will stand graduates in great stead for a range of careers, in particular roles in the following areas:

    Parks & gardens

    Horticulture management

    Supervisory & foreman roles


    Horticulture retail

    Nursery work

    Choosing the right course and the right options is important.  If you have any questions, please get in touch with our specialist tutors using our FREE COURSE COUNSELLING SERVICE.  They will be more than happy to help you make the right choice for you.

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      Meet some of our academics

      Marie Beerman B.Sc.,M.Hort.Marie has been involved in horticulture since 2003. She completed a Masters degree in Horticulture at Hannover University in Germany in 2007, and has worked with ACS since 2011 She has co-authored of several ebooks including one on Roses and has a very sound knowledge and experience with horticultural science and research ranging from plant taxonomy and plant breeding to pest, disease and soil management.,
      Maggi BrownMaggi is regarded as an expert in organic growing throughout the UK, having worked for two decades as Education Officer at the world renowned Henry Doubleday Research Association. She has been active in education, environmental management and horticulture across the UK for more than three decades. Some of Maggi's qualifications include RHS Cert. Hort. Cert. Ed. Member RHS Life Member Garden Organic (HDRA) .
      Diana Cole (Horticulturist)Horticulturist, Permaculturist, Landscaper, Environmentalist. Holds a Diploma in Horticulture, degree in geography, permaculture certificate and various other qualifications. Between 1985 and 94, Diana was a task leader with the British Trust for Conservation Volunteers. Since 2001 she has been chairperson of the Friends of Mellor Park (with Stockport MDC). From 2005 she has worked exclusively in horticulture as proprietor of her own garden design and consultancy business in and around Derbyshire; and at the same time as part time manager of a small garden centre. Diana has been an enthusiastic and very knowledgeable tutor with ACS since 2008.
      Yvonne Sharpe (Horticulturist)Started gardening in 1966, studied a series of horticulture qualifications throughout the 1980's and 90's, culminating in an RHS Master of Horticulture. Between 89 and 1994, she worked teaching in horticultural therapy. Founded the West Herts Garden Association in 1990 and exhibited at Chelsea Flower Show in 1991. In 1994, Yvonne joined the staff at Oaklands College, and between 1996 and 2000 was coordinator for all Amenity Horticulture courses at that college. Since leaving Oakland she has been active as a horticultural consultant, retail garden centre proprietor and sessional lecturer (across many colleges in southern England). In 2000, she also completed a Diploma in Management.

      Check out our eBooks

      Getting Work in HorticultureExplore what it is like to work in horticulture; how diverse this industry is, how to get a start, and how to build a sustainable, long term and diverse career that keeps your options broad, so you can move from sector to sector as demand and fashion changes across your working life.
      Fruit, Vegetables and HerbsThe Fruit, Vegetables and Herbs ebook is ideal for students, professionals and home gardening enthusiasts alike. Fruit, Vegetable and Herbs provides an overview in techniques to produce food in the garden. Topics covered within this course include 1/ Food from the garden, 2/ Deciding what to grow, 3/ Successful growing, 4/ Fruits, 4-1/ Deciduous fruit trees, 4-2/ Citrus fruits, 4-3/ Tropical fruits, 4-4/ Berries, 4-5/ Nuts, 4-6/ Vine crops, 4-7/ Using produce, 5/ Vegetables, 6/ Mushrooms, 7/ Special growing techniques
      Plant Pests & DiseasesAre you one of those people that kill every plant you touch? Perhaps it's not you. Perhaps it's a pest or disease. A little bit of reading might just turn your garden into an oasis. Learn how to identify pests and diseases and bring the spring back into your plant...visit the bookshop to find out more...
      What to Plant WhereA great guide for choosing the right plant for a particular position in the garden. Thirteen chapters cover: plant selection, establishment, problems, and plants for wet areas. Shade, hedges and screens, dry gardens, coastal areas, small gardens, trees and shrubs, lawns and garden art.