Growing and Using Citrus

Learn how to grow citrus fruit. Study different species and varieties of citrus, their culture, fruit production and use.

Course Code: SGH20
Fee Code: SG
Duration (approx) Duration (approx) 20 hours
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Learn what citrus to grow and how to grow it.

Citrus may be grown for its:

  • Food and Nutritional value
  • Aesthetic value
  • Medicinal value

They are evergreen trees with unique leaves, fragrant flowers, and vibrant citrus colours that offer an exotic touch to any garden, terrace, deck, or balcony. 

This course is a complete guide for growing successful citrus plants and for learning the various ways to use them.

Lesson Structure

There are 5 lessons in this course:

    • Citrus today
    • Harvesting
    • A brief history
    • Botany of citrus
    • Appearance
    • Reproduction and variability
    • Flowering and pollination
    • Fruit development
    • Number and classification of species
    • Species of citrus
    • Close relatives
    • Microcitrus
    • Eremocitrus
    • Fortunella
    • Poncirus
    • Lesson 1 additional reading
    • Review what you have been learning
    • Planting citrus trees
    • What affects success?
    • Temperature
    • Frosts and cold winds
    • Choose the right type
    • Shade
    • Tree size
    • Root damage
    • Container growing
    • Soil
    • Colloids
    • Preparing the soil for planting
    • Does your soil need gypsum?
    • Planting technique
    • Feeding
    • Fertiliser applications
    • Drainage
    • Irrigation
    • Measuring water availability to plants
    • Irrigation
    • Scheduling irrigation
    • Important elements
    • Period of watering
    • Cyclic watering
    • Pulse watering
    • Water extraction by roots
    • Types of irrigation
    • Common citrus fruit problems
    • Nutrient deficiencies
    • Pests of citrus
    • Diseases and viruses of citrus
    • Planting lemon trees
    • Planting technique
    • Caring for lemon trees
    • Pruning citrus
    • Pruning a standard shape
    • Renovating an old tree
    • Pruning to improve fruit quality
    • Pruning to improve tree health
    • Review what you have been learning
    • Propagation options
    • Grafting (budding)
    • Budding techniques
    • Dwarf trees and double grafts
    • Growing from cuttings
    • Growing from seed
    • Review what you have been learning
    • Deciding what to grow
    • Lemon tree selection
    • Cumquats
    • Unusual citrus
    • Citrus fruit ripening chart
    • Review what you have been learning
    • Nutritional value of citrus
    • How to extract citrus oils
    • Freezing citrus
    • Drying citrus
    • Making use of excess lemons
    • Making fresh lemonade
    • Recipes
    • Making jams/marmalade
    • Marmalade
    • Beetroot and orange chutney
    • Citrus syrup cake
    • Classic orange fennel and onion salad
    • Easy salad dressing
    • Easy pasta side dish
    • Fruit butter/ fruit curd
    • Lemon tart
    • Lemon dipping sauce - Asian style
    • Lettuce cups with chicken and citrus
    • Lime chutney
    • Marinade for chicken
    • Marinade for steak
    • Orange salad
    • Orange couscous
    • Salsa topping for salmon or trout
    • Review what you have been learning
    • Final assessment

Who is this course for?

This course can be professional development for:

  • Home gardeners
  • Hobby Farmers
  • Farmers who wish to value add to their produce 
  • Produce processors
  • Commercial fruit farmers or their employees
  • Start-up entrepreneurs producing food products on a small scale
Member of the Future Farmers Network

UK Register of Learning Providers, UK PRN10000112

Accredited ACS Global Partner

Member of the Nursery and Garden Industry Association since 1993

Member of the Permaculture Association

Member of Study Gold Coast

Recognised since 1999 by IARC

Course Contributors

The following academics were involved in the development and/or updating of this course.

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