Cauliflower in Zone 3a
Brassica oleracea
Method: Start indoors — Start indoors from seed, then transplant outside — Cauliflower needs a head start most zones can't give it by direct-sowing alone.
| Start indoors | Apr 18–Apr 25 |
|---|---|
| Direct sow / transplant outside | May 16–May 23 |
| Estimated harvest | ~70 days after transplanting |
Spacing: 1 per square foot (square-foot-gardening spacing).
Good companions
- Onion — Onion scent confuses cabbage moths that target brassicas.
Where to buy cauliflower seeds
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See it growing
Search YouTube for "growing cauliflower" videos → (a live search, not a hand-picked video — results vary and aren't vetted by us)
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