Orchid Cultivation Course

Lesson 1 • Orchid Anatomy and Morphology

Examines roots, pseudobulbs, leaves, and floral structures in detail. Understanding anatomy informs watering, feeding, and repotting decisions.

Lesson 2 • Natural Habitats and Ecological Niches

Surveys the climatic zones and ecosystems where orchids originate. Habitat knowledge guides replication of ideal growing conditions.

Lesson 3 • Growth Cycles and Dormancy

Explains active growth phases, rest periods, and seasonal triggers for blooming. Students learn to align care routines with each growth stage.

Lesson 1 • Light Requirements and Management

Defines light intensity, duration, and spectrum needs for major orchid groups. Proper light management prevents leaf burn and promotes flowering.

Lesson 2 • Temperature Ranges and Differentials

Covers day-night temperature differentials that trigger blooming and support metabolism. Students calibrate heating and cooling systems accordingly.

Lesson 3 • Air Circulation and Ventilation

Explains the role of airflow in gas exchange, disease prevention, and evaporative cooling. Students design ventilation layouts for greenhouses and indoor spaces.

Lesson 4 • Greenhouse and Indoor Growing Setups

Compares greenhouse structures, grow tents, and windowsill setups for orchid cultivation. Students select and configure the appropriate environment for their scale.

Lesson 1 • Common Growing Media Options

Surveys bark, sphagnum moss, perlite, leca, and other substrates with their drainage and aeration profiles. Students match media to genus requirements.

Lesson 2 • Container Types and Selection

Compares clay, plastic, net, and basket containers for airflow, moisture retention, and root visibility. Container choice directly affects watering frequency.

Lesson 3 • Repotting Procedures and Timing

Guides students through step-by-step repotting, including root trimming and media refresh. Correct timing prevents disruption of active growth or blooming.

Lesson 1 • Orchid Fertiliser Fundamentals

Explains macronutrient and micronutrient roles in orchid metabolism and flowering. Students read fertiliser labels and calculate dilution rates.

Lesson 2 • Fertilisation Schedules and Programmes

Designs weekly-weakly and seasonal fertilisation programmes aligned with growth cycles. Flush routines prevent salt buildup in media.

Lesson 3 • Water Quality and Sources

Analyses the impact of pH, dissolved minerals, and chlorine on orchid health. Students test and treat water to meet orchid-specific requirements.

Lesson 4 • Watering Frequency and Techniques

Establishes how media type, pot size, and season determine watering intervals. Students practise the soak-and-dry and bark-check methods.

Lesson 1 • Quarantine and Sanitation Protocols

Establishes quarantine procedures for new plants and sanitation routines for tools and benches. Prevents cross-contamination across a collection or growing facility.

Lesson 2 • Integrated Pest Management Principles

Applies prevention, biological controls, and chemical intervention in a tiered response framework. Reduces chemical dependency while maintaining plant health.

Lesson 3 • Treatment Methods and Products

Compares neem oil, insecticidal soap, systemic pesticides, and fungicides for efficacy and safety. Students select and apply treatments at correct concentrations.

Lesson 4 • Common Orchid Pests Identification

Profiles spider mites, mealybugs, scale, thrips, and fungus gnats with diagnostic features. Early identification reduces treatment complexity and plant loss.

Lesson 1 • Keiki Production and Management

Explains natural keiki formation and hormone-paste induction on Phalaenopsis and Dendrobium. Students manage keiki development until independent establishment.

Lesson 2 • Meristem Culture and Tissue Propagation

Introduces meristem culture as a method for producing disease-free, genetically identical clones. Students learn laboratory requirements and commercial applications.

Lesson 3 • Seed Germination and Flasking Basics

Introduces asymbiotic seed germination on agar media in sterile flasks. Students understand the flasking process and its role in large-scale propagation.

Lesson 4 • Deflasking and Seedling Establishment

Guides students through removing seedlings from flasks and transitioning them to community pots. Proper deflasking technique dramatically improves seedling survival rates.

Lesson 1 • Triggering and Encouraging Blooming

Applies temperature drops, light adjustments, and dry rest periods to initiate flower spikes. Students diagnose and correct failure-to-bloom conditions.

Lesson 2 • Spike Development and Care

Monitors spike emergence, growth rate, and bud development to prevent bud blast. Students adjust environment and watering during the critical spike phase.

Lesson 3 • Staking and Training Flower Spikes

Demonstrates staking techniques for upright, arching, and cascading spike forms. Proper staking enhances visual presentation and prevents stem breakage.

Lesson 4 • Post-Bloom Care and Spike Management

Covers spike trimming, node cutting for rebloom, and post-bloom recovery feeding. Students extend bloom cycles and prepare plants for the next growth phase.

Lesson 1 • Inventory Management and Collection Growth

Applies inventory principles to acquisitions, trades, sales, and culling decisions. Students balance collection growth with available space and resources.

Lesson 2 • Labelling and Plant Identification Systems

Establishes consistent labelling conventions using botanical names, clone names, and acquisition data. Accurate labels prevent misidentification and support breeding records.

Lesson 3 • Maintenance Scheduling and Task Planning

Builds weekly, monthly, and seasonal care calendars aligned with orchid growth cycles. Scheduled routines reduce reactive problem-solving and plant losses.