Indoor Plants Course

Lesson 1 • What Are Indoor Plants

Defines indoor plants and distinguishes them from outdoor species by adaptation traits. Establishes the conceptual baseline for all subsequent plant selection and care decisions.

Lesson 2 • Benefits of Growing Plants Indoors

Examines psychological, aesthetic, and air-quality benefits supported by research. Motivates learners to apply care skills by connecting plant health to measurable human outcomes.

Lesson 3 • Reading Plant Labels and Tags

Teaches interpretation of nursery tags including light, water, and size information. Enables informed purchasing decisions before deeper care knowledge is applied.

Lesson 1 • Supplemental Grow Lights

Covers LED, fluorescent, and full-spectrum grow light options for light-deficient spaces. Students design a basic supplemental lighting setup for a given plant collection.

Lesson 2 • Matching Plants to Light Conditions

Applies light-zone knowledge to select appropriate species for each room area. Prevents common placement errors that cause slow decline or sudden plant death.

Lesson 3 • Diagnosing Light-Related Problems

Identifies visual symptoms caused by too much or too little light exposure. Connects symptom recognition to corrective placement or shading strategies.

Lesson 4 • How Plants Use Light

Explains photosynthesis and the role of light wavelengths in plant metabolism. Grounds all light-placement decisions in biological necessity rather than guesswork.

Lesson 1 • Watering Methods and Best Practices

Compares top watering, bottom watering, and misting for different plant and pot types. Students select the correct method to promote deep root growth and prevent rot.

Lesson 2 • How Plants Absorb and Use Water

Explains root uptake, transpiration, and turgor pressure as the basis for watering decisions. Builds physiological understanding that prevents mechanical, schedule-based watering errors.

Lesson 3 • Diagnosing Watering Problems

Identifies root rot, crispy tips, and wilting as symptoms of watering imbalance. Links each symptom to a specific corrective action covered in prior sections.

Lesson 4 • Water Quality and Its Effects

Addresses how mineral content, chlorine, and pH in tap water affect plant health. Students apply simple treatments to improve water quality before use.

Lesson 1 • Components of Potting Mix

Breaks down peat, coco coir, perlite, bark, and sand as functional mix ingredients. Students understand each component's role in drainage, aeration, and moisture retention.

Lesson 2 • Container Types and Their Trade-offs

Compares terracotta, plastic, ceramic, and fabric pots for moisture management and root health. Students match container material to plant water needs established in Chapter 3.

Lesson 3 • Formulating Mixes for Plant Types

Guides students to build mixes tailored to succulents, tropicals, orchids, and ferns. Applies component knowledge to real plant needs, reinforcing earlier plant category learning.

Lesson 4 • Soil Health and Amendments Over Time

Explains how soil compacts, loses nutrients, and becomes hydrophobic with age. Students apply top-dressing, aeration, and partial soil replacement to maintain growing media.

Lesson 1 • Building a Fertilising Schedule

Designs seasonal fertilising plans aligned with plant growth cycles and light availability. Integrates watering frequency from Chapter 3 to time fertiliser applications correctly.

Lesson 2 • Types of Fertilizers

Compares liquid, granular, slow-release, and organic fertilisers for indoor use. Students evaluate trade-offs in application frequency, cost, and risk of over-fertilisation.

Lesson 3 • Avoiding Fertiliser Burn and Toxicity

Explains salt buildup, root burn, and toxicity from over-fertilisation and corrective flushing. Prevents the most common fertilising mistake made by beginner and intermediate growers.

Lesson 4 • Essential Plant Nutrients

Covers nitrogen, phosphorus, potassium, and key micronutrients and their roles in growth. Provides the nutritional foundation needed to interpret fertiliser labels and deficiency symptoms.

Lesson 1 • Air Circulation and Ventilation

Demonstrates how airflow strengthens stems, reduces fungal risk, and regulates transpiration. Students position fans and open windows strategically without creating damaging drafts.

Lesson 2 • Understanding and Measuring Humidity

Explains relative humidity and its effect on transpiration and disease susceptibility. Students use hygrometers to assess and document humidity levels in different room zones.

Lesson 3 • Temperature Ranges for Indoor Plants

Maps optimal and tolerable temperature ranges for tropical, subtropical, and desert species. Connects temperature knowledge to seasonal placement decisions in heated or cooled rooms.

Lesson 1 • Common Indoor Plant Diseases

Covers root rot, powdery mildew, leaf spot, and botrytis with causal conditions. Links disease development to environmental factors addressed in Chapter 6.

Lesson 2 • Preventing Pest and Disease Recurrence

Establishes hygiene practices, tool sterilisation, and soil management to block reinfestation. Reinforces soil and watering knowledge from earlier chapters as prevention tools.

Lesson 3 • Common Indoor Plant Pests

Profiles spider mites, fungus gnats, mealybugs, scale, and thrips with identification features. Builds recognition skills that enable early intervention before infestations become severe.

Lesson 4 • Organic and Chemical Treatment Options

Compares neem oil, insecticidal soap, systemic treatments, and biological controls for efficacy. Students select treatments proportional to infestation severity and plant sensitivity.

Lesson 1 • Stem and Leaf Cuttings

Teaches node identification, cutting preparation, and rooting in water, soil, and perlite. Covers the widest range of common houseplants, making this the most universally applicable method.

Lesson 2 • Division, Offsets, and Pups

Demonstrates dividing clumping plants and separating offsets and pups from parent plants. Applies repotting skills from Chapter 4 to the specific demands of division propagation.

Lesson 3 • Air Layering and Advanced Methods

Covers air layering for woody stems and moss-pole propagation for climbing species. Expands student capability to propagate plants that do not respond to simple cutting methods.

Lesson 4 • Propagation Fundamentals

Explains vegetative vs. sexual propagation and the biological basis for each method. Sets expectations for success rates, timing, and the resources required before starting.