How a large-scale market garden uses backyard diversity to survive climate change
In short: Forget monoculture. On a farm in Georgica, NSW, success depends on embracing weeds, diverse mulches, and the unpredictable. By applying small-scale gardening wisdom to vast paddocks, these growers are building a resilient food system capable of with'standing record-breaking droughts and bushfires.
For thirty years, Kenrick and Maree have managed a farm on fertile but hard-setting black basalt soil. Their strategy rejects the simplicity of single-material mulches, such as wheat straw, in favor of a complex mix. By cutting and mulching paddocks before seed set, they incorporate a diverse range of pasture species and even weeds into the earth. The logic is nutritional: a diverse plant mulch introduces a wider variety of minerals into the soil, creating a more robust foundation for crops.
This philosophy of diversity operates at every scale, from the entire property down to individual garden beds. The farm layout integrates trees and grassland between garden plots to support broader biodiversity. Within a single paddock, the complexity continues, with 15 different rows each hosting unique crops. Over the course of a year, the farm produces between 70 and 80 different items, including multiple varieties of garlic and Aibika, alongside essential flowers that support the ecosystem.
Adaptability is the farm's primary defense against an increasingly erratic climate, which has brought both rainforest bushfires and extreme wet and dry spells. A key component of this resilience is the use of Aibika, a protein-rich perennial leaf crop. By saving their own seeds, the growers acclimatize varieties over time to widen their climatic resistance. They also utilize the natural strength of self-sown plants, such as perennial spinach, which are transplanted after being dug over and watered, ensuring the next generation is as hardy as the last.
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Sources
- Summary by Intellect · source: This market garden uses backyard methods for large scale produce | Discovery | Gardening Australia
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