Soil Testing and Amendment Guides

Good soil is the foundation of every productive garden. Whether you are starting from scratch, troubleshooting persistent problems, or looking to fine-tune an already-decent plot, understanding your soil is the highest-return action you can take. These 30 guides cover everything from basic pH testing to fixing specific nutrient deficiencies, improving each soil type, and building long-term fertility with organic amendments.

Testing and pH

• How to test your garden soil
• What is soil pH and why does it matter?
• Acidic soil: causes, problems, and fixes
• Alkaline soil: why plants struggle and what to do
• How to raise soil pH with lime and other amendments
• How to lower soil pH for acid-loving plants

Soil Types

• Soil types: how to identify yours and what to do
• Clay soil: problems, benefits, and how to work with it
• Sandy soil: why it drains fast and how to improve it
• Chalky soil: what to grow and how to improve it
• Loam soil: what it is and how to keep it healthy

Improving Soil

• Improving clay soil: what works and what doesn't
• Improving sandy soil for better crops
• Adding compost: how much and how often
• Adding manure: types, timing, and rates
• Green manures: how to use cover crops to feed your soil
• No-dig soil: how it works and why it builds better gardens

Amendments

• Garden lime: when to use it and how much to apply
• Sulphur as a soil acidifier: how and when to use it
• Soil in containers: choosing and maintaining the right mix
• New garden soil: how to assess and improve from scratch

Nutrient Deficiencies

• Nitrogen deficiency: yellow plants and how to fix them
• Phosphorus deficiency: purple leaves and poor roots
• Potassium deficiency: scorched leaf edges explained
• Iron deficiency: yellow leaves with green veins on new growth
• Magnesium deficiency: yellow between the veins on older leaves

Soil Health

• Soil structure: what it is and why it matters
• Soil life: worms, bacteria, and fungi that make gardens grow
• Waterlogged soil: causes and drainage solutions
• Compacted soil: how to diagnose it and break it up