Purple Cauliflower Seeds | 100 Seeds

How to Grow Purple Cauliflower Seeds:
Purple cauliflower is a cool-season brassica grown like white cauliflower but with colorful heads. Start seeds indoors 4–6 weeks before your last frost for a spring crop, or sow late summer for a fall crop (fall usually gives the best color and sweetness). Sow seeds about 0.5 cm (¼ in) deep in seed mix, keep evenly moist, and germination takes about 5–10 days in mild temps. Give strong light after sprouting. Transplant outdoors when seedlings have 3–4 true leaves and weather is cool, spacing 45–60 cm (18–24 in) apart with 60–75 cm (24–30 in) between rows. Plant in full sun in cool climates; in warmer areas, morning sun with light afternoon shade helps prevent heat stress. Use rich, well-drained soil with plenty of compost, and keep the bed cool and moist from day one.

How to Care for Purple Cauliflower:
Water consistently—steady moisture is the secret to tight, smooth heads. Mulch to keep soil cool and prevent drying. Cauliflower is a heavy feeder: side-dress with compost or a balanced veggie fertilizer every 2–3 weeks until heads form, then ease off nitrogen so curds don’t get loose. Purple types don’t need blanching like white cauliflower; let heads stay exposed so they color up fully (but avoid extreme heat, which can fade color). Watch for cabbage worms, aphids, and flea beetles—use insect netting early, hand-pick caterpillars, and keep weeds down for airflow. Harvest when heads are firm, tight, and fully colored, usually 15–20 cm (6–8 in) across; cut with a short stem and a few wrapper leaves. Don’t wait too long—overmature heads loosen and lose color.

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