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vegetableAnnualEdible
Romanesco
Brassica oleracea var. botrytis
Also known as: Roman cauliflower, Romanesco broccoli
Striking fractal spiral heads in chartreuse green. Milder than cauliflower with nutty flavor. Cool-season crop sensitive to heat.
Growing Requirements
SunFull Sun
WaterMedium
Soil Type
Soil Drainage
Soil pH
Plant Spacing18–24″
Row Spacing24–36″
Planting Depth0.25–0.5″
Height18–24″
Spread18–24″
✗ Not Container Friendly✓ Raised Bed Friendly
Planting Schedule
Start Indoors
4–6 weeks before last frost
Transplant Outdoors
1–9 weeks after last frost
Fall Sow
10–12 weeks before first frost
Germination
5–10 days
Days to Harvest
75–100 days
Zone Suitability
USDA Hardiness Zones
1
2
3
4
5
6
7
8
9
10
11
12
13
Zones 1–13
Cannot overwinter outdoors
Best as fall crop — heat causes poor head formation. Needs consistent moisture and fertile soil. Harvest when spirals are tight.
Companion Plants
No companion data available for this plant yet.