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Holly's Homestead — Grain & Staple

Quinoa

Chenopodium quinoa · Amaranth family
DIFFICULTY Moderate
TYPE Annual, direct sown, cool–mild season
MATURITY 90–120 days
Sun
Full sun
Water
Low–moderate
Soil pH
6.0–7.5
Spacing
20–30cm
Depth
1cm

01Best in cooler zones

Quinoa generally performs better in cooler temperate climates with a mild growing season — hot, humid summers can reduce yield and grain quality.

02Planting

Method
Direct sow once frost risk has passed.
Soil
Well-drained, tolerates poor soil.
Timing
Sow in spring in cool temperate zones.

03Growing care

  • Thin as seedlings establish.
  • Water moderately — avoid waterlogging.
  • Net maturing seed heads against birds.
  • Support tall plants in windy spots if needed.

04Problems

  • Birds — very attracted to ripening seed heads; net well.
  • Downy mildew — humid conditions; improve airflow, best avoided by growing in the cooler season.
  • Poor performance in hot, humid summers — best suited to cooler temperate zones.
  • Leaf miner — occasional; largely cosmetic.

05Harvest & storage

Signs
Seed heads dry, leaves yellow and drop, seeds resist denting with a fingernail.
Method
Cut whole seed heads, dry further, then thresh.
Curing
Dry thoroughly, then rinse seed well before cooking to remove the natural bitter coating (saponin).
Storage
Airtight, cool, dark — keeps many months.

06Companions & rotation

Plant nearby
BeansCorn
Avoid nearby
None major
Rotation note
Rotate with legumes; avoid following other amaranth-family crops like beetroot/silverbeet.