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Gardener Course
More than 2 million students worldwide

Gardener Course

Get the hands-on skills professional gardeners rely on every day, from soil science and plant propagation to pest control and garden design. This course covers everything you need to work confidently in real garden environments. Whether you're starting out or levelling up, you'll finish ready to deliver results.

Dedika for businesses

What you will learn:

This course covers the full range of skills needed to work as a competent, professional gardener. You will learn plant biology, soil assessment, and how to select and establish plants for any site. You will master pruning, irrigation, and fertiliser programmes that keep gardens healthy through every season. The course also covers pest, disease, and weed management using integrated, responsible methods. You will gain practical experience with tools, machinery, and safe work practices. Garden design principles and project planning round out the programme, giving you the ability to take a garden from brief to completion.

How you study in practice Gardener Course

How you practise Gardener Course

For companies looking to train their teams

With Dedika for businesses, the course includes exercises and examples tailored to your company and its specific needs.

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Course content

8 Chapters • 39 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Horticulture and Plant Science

  • Lesson 1 • Plant Anatomy and Basic Biology

    Covers roots, stems, leaves, flowers, and seeds and their functions. Establishes the biological vocabulary needed throughout the course.

  • Lesson 2 • Environmental Factors Affecting Plant Health

    Examines how light, temperature, humidity, and wind influence plant performance. Prepares students to diagnose environmental stress in the garden.

  • Lesson 3 • Plant Growth Cycles and Lifecycles

    Explains annual, biennial, and perennial growth patterns and dormancy. Connects lifecycle knowledge to planting schedules and garden planning.

  • Lesson 4 • Plant Classification and Identification

    Introduces botanical naming conventions and key identification features. Enables accurate plant selection and communication with suppliers and clients.

Chapter 2See details

Soil Science and Site Assessment

  • Lesson 1 • Soil Amendment and Improvement Strategies

    Covers organic and inorganic amendments and their appropriate applications. Students formulate improvement plans based on soil test results and plant goals.

  • Lesson 2 • Soil pH and Nutrient Availability

    Explains how pH controls nutrient solubility and microbial activity. Students learn to test pH and match soil conditions to plant requirements.

  • Lesson 3 • Soil Composition and Structure

    Covers mineral particles, organic matter, air, and water ratios in soil. Provides the foundation for understanding drainage, aeration, and root penetration.

  • Lesson 4 • Soil Drainage and Water Retention

    Teaches percolation testing and identification of drainage problems. Connects drainage management to root health and disease prevention.

  • Lesson 5 • Site Assessment and Microclimate Analysis

    Guides students through evaluating sun exposure, slope, wind, and existing vegetation. Outcomes feed directly into garden design and plant selection decisions.

Chapter 3See details

Tools, Equipment, and Safe Work Practices

  • Lesson 1 • Tool Maintenance and Storage

    Teaches cleaning, sharpening, oiling, and correct storage of hand and power tools. Routine maintenance extends tool life and ensures safe, effective performance.

  • Lesson 2 • Power Tools and Machinery Operation

    Covers safe startup, operation, and shutdown of mowers, trimmers, and cultivators. Students apply manufacturer guidelines and pre-use inspection routines.

  • Lesson 3 • Hand Tools: Selection and Correct Use

    Identifies spades, forks, hoes, rakes, trowels, and pruners and their specific tasks. Proper grip and technique prevent strain and improve productivity.

  • Lesson 4 • Personal Protective Equipment

    Specifies PPE requirements for chemical handling, power tools, and manual tasks. Matching PPE to hazard type is practised through scenario exercises.

  • Lesson 5 • Workplace Health and Safety Principles

    Introduces hazard identification, risk assessment, and manual handling techniques. Students apply a systematic approach to keeping the work site safe.

Chapter 4See details

Planting Techniques and Propagation

  • Lesson 1 • Vegetative Propagation Methods

    Teaches stem, leaf, and root cuttings alongside division and layering techniques. Each method is matched to appropriate plant types and seasons.

  • Lesson 2 • Transplanting and Bare-Root Planting

    Guides students through correct hole preparation, root handling, and backfilling. Proper technique reduces transplant shock and accelerates establishment.

  • Lesson 3 • Container and Pot Planting

    Covers drainage layer setup, potting mix selection, and container sizing. Students match container type and mix to plant water and nutrient needs.

  • Lesson 4 • Hardening Off and Establishment Care

    Explains the gradual acclimatisation process from protected to outdoor conditions. Students apply watering and monitoring routines during the critical establishment period.

  • Lesson 5 • Seed Sowing Indoors and Outdoors

    Covers sowing depths, spacing, media selection, and germination conditions. Students produce healthy seedlings ready for pricking out or direct establishment.

Chapter 5See details

Watering, Irrigation, and Nutrient Management

  • Lesson 1 • Water Requirements and Soil Moisture

    Explains how plant type, soil texture, and weather determine watering frequency. Students use visual and tactile checks to assess soil moisture accurately.

  • Lesson 2 • Water Conservation Techniques

    Teaches mulching, rainwater harvesting, and timing strategies to reduce water use. Conservation practices are linked to cost savings and environmental responsibility.

  • Lesson 3 • Fertiliser Application and Scheduling

    Covers application rates, timing, and methods to avoid nutrient burn and runoff. Students build a seasonal feeding schedule aligned with plant growth stages.

  • Lesson 4 • Irrigation Systems and Methods

    Covers drip, soaker hose, sprinkler, and hand-watering systems and their efficiency. Students select and set up the appropriate system for different garden zones.

  • Lesson 5 • Plant Nutrition and Fertiliser Types

    Introduces macronutrients, micronutrients, and the role of each in plant health. Students distinguish organic from synthetic fertilisers and their release rates.

Chapter 6See details

Pruning, Training, and Plant Maintenance

  • Lesson 1 • Principles of Pruning

    Explains why plants are pruned and how cuts affect regrowth and plant structure. Students apply the three Ds rule and understand apical dominance.

  • Lesson 2 • Pruning Trees and Shrubs

    Covers formative, maintenance, and renovation pruning for woody plants. Timing is matched to flowering habit and growth cycle of each plant group.

  • Lesson 3 • Pruning Roses and Climbers

    Teaches group-specific rose pruning and the training of climbing and rambling plants. Students practise tying in, deadheading, and seasonal cutback routines.

  • Lesson 4 • Lawn Maintenance Operations

    Introduces mowing heights, edging, scarifying, aerating, and overseeding routines. Students build a year-round lawn care calendar for different grass types.

  • Lesson 5 • Hedge Trimming and Topiary

    Covers formal and informal hedge cutting techniques and topiary shaping. Students use string lines and templates to achieve clean, consistent results.

Chapter 7See details

Pest, Disease, and Weed Management

  • Lesson 1 • Common Garden Pests and Controls

    Covers identification and management of insects, molluscs, and vertebrate pests. Students match control methods to pest biology and damage type.

  • Lesson 2 • Weed Identification and Control

    Distinguishes annual from perennial weeds and explains their different control needs. Students apply mechanical, cultural, and chemical methods proportionately.

  • Lesson 3 • Plant Diseases: Identification and Management

    Teaches recognition of fungal, bacterial, and viral diseases by symptom patterns. Students apply cultural and chemical management strategies appropriately.

  • Lesson 4 • Integrated Pest Management Principles

    Introduces the IPM hierarchy: prevention, monitoring, biological, and chemical controls. Students apply a decision-making framework before selecting any intervention.

  • Lesson 5 • Safe Pesticide Handling and Compliance

    Covers label reading, dilution, application, storage, and disposal of pesticides. Students follow regulatory requirements for pesticide use in professional settings.

Chapter 8See details

Garden Design and Project Planning

  • Lesson 1 • Hard Landscaping and Garden Features

    Covers paths, patios, edging, raised beds, and water features as design elements. Students integrate hard and soft landscaping for functional, attractive outdoor spaces.

  • Lesson 2 • Design Principles and Garden Styles

    Introduces balance, rhythm, focal points, scale, and unity in garden composition. Students analyse existing garden styles to extract applicable design principles.

  • Lesson 3 • Project Planning and Work Scheduling

    Teaches phased work planning, resource estimation, and progress monitoring. Students produce a realistic project schedule that accounts for weather and plant availability.

  • Lesson 4 • Plant Selection for Design

    Guides plant selection based on site conditions, seasonal interest, and design intent. Students build plant palettes that deliver year-round colour, texture, and structure.

  • Lesson 5 • Client Brief and Site Survey

    Teaches structured client consultation, needs analysis, and measured site survey. Accurate briefs and surveys prevent costly design errors and scope changes.

Certification

Your valid completion certificate

This course is for you:

  • Hobbyist gardener: ready to move beyond trial-and-error weekend gardening.

  • Career changer: seeking a practical route into the horticulture industry.

  • Landscaping laborer: wanting to expand skills and take on more responsibility.

  • Estate or property manager: needing structured horticultural knowledge for grounds oversight.

  • Retiree: turning a lifelong passion for plants into a meaningful second career.

  • Garden center employee: looking to deepen plant knowledge and advise customers confidently.

What our students say

Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to change platforms... I'm grateful for everything you do, I've already recommended you to other people...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.
Mariana Ferres
Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
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Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.
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André FelipePrompt Engineering Student

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