Crop Rotation Group
Miscellaneous
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Soil
Any sunny site with good drainage.
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Position
Full sun to partial afternoon shade.
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Frost tolerant
No. Buckwheat cannot tolerate cold temperatures.
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Feeding
When using buckwheat to improve very poor soil, mixing a balanced organic fertiliser into the soil before planting will give better results.
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Companions
Mixes well with upright flowers, and makes an attractive backdrop for herbs. A small bed of buckwheat in bloom will attract numerous beneficial insects.
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Spacing
Single Plants: 10cm (3") each way (minimum)
Rows: 10cm (3") with 10cm (3") row gap (minimum)
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Sow and Plant
Sow buckwheat from late spring to late summer, whenever a bed will be unused for more than three weeks. Broadcast seed into cultivated soil so that the seeds are about 5 cm (2in) apart and 1 cm (1/2in) deep. Thin to 10 cm (4in) apart in all directions.
Our Garden Planning Tool can produce a personalised calendar of when to sow, plant and harvest for your area.
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Notes
Limit reseeding by pulling up or turning under buckwheat just after it blooms, but before it develops mature seeds.
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Harvesting
Buckwheat can be pulled up and composted or turned under any time. It will return the most organic matter when taken down 5 to 6 weeks after seeding.
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Troubleshooting
Buckwheat has few problems with pests or diseases.
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