Crop rotation is one of the simplest and most effective ways to get a bigger harvest from your vegetable garden. Moving your vegetables to a different spot each year keeps the soil healthier and helps keep pests and diseases at bay.
What is crop rotation?
Crop rotation means moving different plant families around the garden from year to year. The aim is to limit nutrient depletion, control pests and diseases and improve soil health.
Why rotate your crops?
Different plants have different nutrient needs. One crop may use up particular nutrients, and the next crop can help replace them as it grows. Leafy greens, for example, use different nutrients from root vegetables, which gives the soil a chance to recover.
Rotating also breaks the life cycle of soil-borne pests and diseases, making it much harder for them to get established.
How it works: the four-bed plan
A common method is to divide the vegetable garden into four sections. Each year every group of crops moves along one bed, so by Year 4 they have been through every spot. In Year 5 the cycle starts again.
| Year 1: Fruiting veges |
Year 2: Leafy greens and brassicas |
Year 3: Roots and bulbs |
Year 4: Legumes and corn |
| Capsicums and peppers, cucumbers, eggplant, melons, squash, tomatoes |
Broccoli, Brussels sprouts, cabbage, cauliflower, celery, kale, kohlrabi, lettuce, spinach |
Beetroot, carrots, leeks, parsnips, onions, potatoes, radishes, turnips |
Peas of all types, broad beans, French beans, runner beans, corn |
| Heavy feeders that use a lot of the soil's nutrients, especially nitrogen. |
Still need nitrogen, but less than fruiting crops. |
Need less nitrogen, and their roots help break up the soil after two years of heavier feeding. |
Legumes fix nitrogen in the soil through their roots. Corn is a heavy feeder and benefits from that nitrogen. |
Tip: Potatoes are prone to blight, so never plant them in the same spot two years running.
Soil health matters
Rotation works best in healthy soil. Keep these in mind:
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Good drainage. Heavy, wet soils hold back root development. Raising beds or adding organic matter helps.
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Organic matter. Add compost regularly to enrich the soil and improve its structure. Daltons Compost is available in bulk, which is the cheapest way to top up a whole vege garden.
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Nutrients. Top up beds with Daltons Garden Mix before planting heavy feeders, and add a natural fertiliser such as chicken and sheep pellets.
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Pests and diseases. Clear away old crops so soil-borne diseases and overwintering insects have nowhere to hide.
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Weeds. Keep beds as weed-free as possible so your crops aren't competing for nutrients and water.
Keep track
A simple garden journal helps you remember what grew where, so you can spot patterns and fine-tune your plan over time.
Use cover crops
Don't leave beds empty between crops. A cover crop such as mustard adds organic matter and nutrients, protects the soil from erosion and keeps weeds down. Dig it in a few weeks before your next planting.
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