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Cauliflower
Brassica oleracea var. botrytis
Overview
A refined brassica that demands more care than its cabbage relatives, cauliflower rewards attentive gardeners with its dense, creamy-white curds. Purple, orange, and green varieties offer both novelty and enhanced nutrition — purple cauliflower gets its color from the same anthocyanins found in blueberries. It thrives in cool conditions and is notoriously sensitive to heat stress, which causes premature bolting.
Mentioned in The Mycelial Grimoire
Posts on the Grimoire that reference Cauliflower.
Growing Conditions
How to Grow Cauliflower
Cauliflower (Brassica oleracea var. botrytis) is an annual forb/herb that grows to about 2 feet tall and 2 feet wide.
To grow cauliflower, give it full sun. It is hardy across USDA hardiness zones 3–10. Plant it in rich, moist, well-drained soil with consistent moisture, at a slightly acidic pH of 6–7. It does best with even, moderate watering.
Exact sowing, transplanting, and harvest months shift by climate zone — the planting calendar below lays them out for cool through hot regions. Its flowers appear from February through September, offering moderate value to pollinators. Here and gone in a year — save a little seed, and you carry it into the next.
Companion Planting & Soil
Cauliflower grows well alongside celery, dill, onion, garlic, and chamomile — but keep it clear of strawberry, tomato, and pepper.
Good Companions
Avoid Planting Near
Planting Calendar
When to sow, transplant, and harvest by growing zone.
| Zone | Action | Months | Notes |
|---|---|---|---|
| Cold (1-2) | Start Indoors | Mar — Apr | Start 6-8 weeks before last frost |
| Cold (1-2) | Transplant | May — Jun | Transplant after hardening off |
| Cold (1-2) | Harvest | Jul — Aug | Harvest when heads are firm and tight |
| Cool (3-4) | Start Indoors | Feb — Mar | Start 6-8 weeks before last frost |
| Cool (3-4) | Transplant | Apr — May | Transplant in cool weather |
| Cool (3-4) | Harvest | Jun — Jul | Harvest before curds separate |
| Moderate (5-7) | Start Indoors | Jan — Feb | Start 6-8 weeks before transplant |
| Moderate (5-7) | Transplant | Mar — Apr | Transplant before heat |
| Moderate (5-7) | Harvest | May — Jun | Harvest when 6-8" across |
| Warm (8-9) | Transplant | Sep — Oct | Fall crop only in warm zones |
| Warm (8-9) | Harvest | Nov — Dec | Fall crop harvest |
| Hot (10+) | Transplant | Oct — Nov | Cool-season only |
| Hot (10+) | Harvest | Dec — Feb (wraps) | Winter harvest |
Uses
In the Kitchen
In the kitchen, cauliflower turns up in more than one form: roasted whole or as florets with spices; riced as a low-carb grain substitute; pureed into creamy soups and sauces.
Medicinal & Folk Use
In herbal and folk tradition, it has been valued in several ways: rich in sulforaphane and other glucosinolates; good source of choline for brain health; high in vitamin C and B vitamins. These are traditional uses, not medical advice.
Beyond the Garden
Cauliflower earns its keep past the plate, too: interesting colored varieties for ornamental kitchen gardens.
