Rotation needs a memory
The reason rotation gets skipped is not disagreement with the idea, it is not remembering what a bed held eighteen months ago. Written-down history is the whole trick.
Crop Rotation
Crop rotation for home gardens — what to plant after what.
Rotation is one of the few gardening habits that costs nothing and pays off every season. The idea is simple: do not grow the same plant family in the same bed twice in a row. The hard part is remembering what was there.
The principle
Plants in the same family share pests, diseases and appetites. Tomatoes, potatoes, capsicum and eggplant are all solanums, so a soil problem that affects one will usually affect the next. Rotating means the pest or disease that built up last season finds nothing it recognises this season, and the bed gets a break from the same nutrient demand.
Legumes are the useful exception worth planning around: peas and beans fix nitrogen, which is why so many families below list them as a good thing to follow.
Rotation families in the Plotera encyclopedia
Generated from the plants in the encyclopedia. "Follow with" and "Avoid following with" show the most common recommendations across every plant in that family, so a family with few entries will have thinner guidance.
| Family | Plants | Follow with | Avoid following with |
|---|---|---|---|
| Flowers Sunflower, Marigold, Nasturtium, Lavender +35 more | 39 | None recorded | None recorded |
| Fruits Strawberry, Banana, Blueberry, Currant +29 more | 33 | Legumes | Solanums |
| Herbs Basil, Parsley, Mint, Rosemary +28 more | 32 | None recorded | None recorded |
| Brassicas Radish, Kale, Broccoli, Cabbage +16 more | 20 | Legumes, Alliums | Brassicas |
| Legumes Beans, Peas, Snow Pea, Broad Bean +9 more | 13 | Brassicas, Solanums | Legumes |
| Roots Carrot, Beetroot, Galangal, Ginger +9 more | 13 | Legumes, Alliums | Roots, Leafy Greens |
| Other Artichoke, Asparagus, Celery, Curry Tree +8 more | 12 | Legumes | Other |
| Leafy Greens Lettuce, Spinach, Silverbeet, Amaranth +7 more | 11 | Legumes, Roots | Leafy Greens, Roots, Brassicas |
| Citrus Lemon, Lime, Makrut Lime, Mandarin +7 more | 11 | None recorded | None recorded |
| Cucurbits Cucumber, Zucchini, Pumpkin, Bitter Melon +5 more | 9 | Legumes, Alliums | Cucurbits |
| Solanums Tomato, Capsicum, Chilli Pepper, Eggplant +4 more | 8 | Legumes, Alliums | Solanums, Brassicas |
| Alliums Onion, Spring Onion, Garlic, Chives +4 more | 8 | Legumes, Brassicas | Alliums |
| Grains Corn, Barley, Chia, Rye +1 more | 5 | Legumes | Grains |
Perennial groups such as fruits, citrus and many herbs appear here for completeness, but rotation applies mainly to annual crops that are lifted at the end of a season.
A simple four-bed rotation
Bed 1Legumes — peas and beans, which leave nitrogen behind.
Bed 2Brassicas — cabbage, broccoli and kale, which use that nitrogen.
Bed 3Roots and alliums — carrots, beetroot, onions and garlic.
Bed 4Solanums and cucurbits — tomatoes, capsicum, pumpkin and zucchini.
Next seasonShift every group one bed along and repeat.
Four beds is the textbook version. With two beds, alternating hungry crops with legumes still helps. With one bed, changing family each season is better than nothing.
Pair it with companions
Rotation is about time, companion planting is about space. They work on the same beds from different angles — see the companion planting guide.
Check the plant guide
Each entry in the plant encyclopedia lists its rotation family alongside spacing and sowing windows.
FAQ
Common questions from home gardeners.
Why rotate crops at all?
Plants in the same family tend to share the same pests, diseases and nutrient demands. Growing them in the same bed season after season gives those problems somewhere to build up, and draws the same nutrients from the same soil. Moving families around breaks that cycle.
How long should I leave before repeating a family?
A common rule of thumb is three to four seasons before the same family returns to a bed, though home gardens with limited space often work on a shorter cycle. Even a single season of something different helps compared with planting the same crop again.
Does rotation matter in raised beds and containers?
It matters less in containers where you can replace the growing medium, and more in permanent raised beds where the soil stays put. If a bed is fixed, treat it the same way you would treat ground soil.
What about perennials and fruit trees?
Perennials, fruit trees and berries stay where they are, so rotation does not apply to them in the same way. Rotation planning is mainly about annual vegetables that come out at the end of a season.
How does Plotera help with this?
Your garden grid records what grew in each zone and when. That history is what makes rotation planning practical, because next season you can see what a bed held last time instead of trying to remember.
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