NZ Lifestyle Block
Conduct pH tests on your garden beds.
The easiest way is to use a pH meter, available from garden centres. However, you don’t just push it into the soil. Most involve:
loosening the soil;
wetting it, often to a muddy consistency;
pushing the probe in to a certain depth;
waiting a minute or so for a reading. The best time to apply lime is from autumn through to early winter, when rain is usually frequent, as it’s needed for the lime to react with the soil. Add a high-magnesium lime or dolomite every 2-3 years, or more often if plants show signs of a deficiency (yellow leaves, slow growth, poor crops) – lighter soils become depleted more quickly than heavier ones.