Annual
Cauliflower
Brassica oleracea var. botrytis
Varieties We Carry
Rober'sBrassica oleracea var. botrytisStandardBrassica oleracea var. botrytis
Sizes & Pricing
4 inFrom$3.50
Seed PackFrom$4.69
Fresh this week. Last restocked Jun 25.
LightFull Sun
WaterModerate
Mature size1-2 feet × 1-2 feet
About Cauliflower
Cauliflower (Brassica oleracea) is a cool-season vegetable grown for its compact, edible white curd — a dense head of undeveloped flower buds — though varieties also come in purple, green, and orange. A Mediterranean native in the cabbage family, it is a classic cool-weather crop for fall and winter gardens. Starting at $3.50.
Plant details
- Bloom Season
- Non-flowering
- Flower Color
- Non-flowering
- Growth Rate
- Moderate
- Foliage
- Deciduous
- Soil
- Sandy, Loam, Well-drained
Best planting months
Recommended forZone 9b · St. Augustine, FL
J
F
M
A
M
JNow
J
A
S
O
N
D
This monthGood windowOther months
Seasonal care
New foliage emerges. Good planting window.
Higher water demand in summer heat.
Foliage may begin to change or drop.
Dormant — drops foliage.
Care essentials
Light
Cauliflower requires a minimum of 6 hours of full sun daily. In NE Florida, plant in fall (September–January) to avoid summer heat — cool-season production is the window for this crop.
Water
Water consistently to maintain even soil moisture — about 1–1.5 inches per week. Uneven watering causes hollow stems or tip burn on the curd. Mulch to retain moisture in NE Florida's sandy soils.
Soil & Fertilizer
Amend sandy NE Florida soil with compost before planting. Apply a balanced vegetable fertilizer at planting and side-dress with nitrogen mid-season. Blanch the curd by tying outer leaves over it as the head forms to keep it white and tender.
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Common questions
Is Cauliflower a good plant for St. Augustine?
Cauliflower is a annual for Zone 9b coastal Florida gardens, with high salt tolerance, reaching 1-2 feet × 1-2 feet.
Care information verified from
Last reviewed February 2026. Our care guidance comes from trusted horticulture sources and decades of helping St. Augustine gardeners. Conditions here can vary dramatically from one area to the next, so come ask us and we'll tailor it to your yard.