Understanding Your Soil
What You’ll Learn
Test your soil pH before every planting season to keep it in the 6.0–6.8 range where most vegetables thrive.
Organic matter — compost or well-rotted manure — improves every soil type, whether sandy or clay.
Good drainage prevents up to 80% of root diseases. It is one of the most important things you can get right.
Why Soil Health Matters
Your soil is the foundation of everything you grow. It feeds your crops, anchors their roots, and teems with billions of tiny organisms working quietly on your behalf. Neglect your soil and yields will fall season after season — even when you pour more fertiliser in. Look after it, and it will look after your harvest.
Understanding Soil pH
Most vegetables perform best in slightly acidic to neutral soil — a pH of 6.0 to 6.8. Outside this range, nutrients lock up in the soil and your plants cannot reach them, even if they are there. Simple pH test kits are available at most agro-vet shops and cost very little. Test before every season and amend with lime (to raise pH) or sulphur (to lower it) as needed.
Soil Texture and Drainage
Soil texture is the balance of sand, silt, and clay. Sandy soils drain too fast and struggle to hold nutrients, while heavy clay soils hold too much water and can suffocate roots. Well-drained loamy soils — a balanced mix of all three — are ideal for most crops. Knowing your texture helps you manage water and fertility better.
Building Organic Matter
Organic matter is the single best thing you can add to any soil. It helps sandy soils hold water and nutrients, and it loosens up dense clay soils. Aim to work in compost, green manure, or well-rotted farmyard manure before each planting season. Over time, you will also build up the population of beneficial organisms that do invisible work for your crops.