Green Curled Ruffec Endive is a cold-tolerant leafy green with finely serrated, curly leaves and a mildly bitter flavor. Often used in gourmet salads and French cuisine, it’s a staple in fall and winter gardens and grows well in a variety of climates.

Quick Facts

• Botanical name: Cichorium endivia

• Common names: Curled Endive, Green Curled Ruffec, Frisée

• Plant type: Cool-season annual

• Days to maturity: 80–90 days

• Height: 8–12 inches

• Sun exposure: Full sun to partial shade

• Hardiness zones: USDA 4–10

• Spacing: 10–12 inches apart

When to Plant

• Spring crop: Sow indoors 6–8 weeks before last frost; transplant outdoors when soil is workable.

• Fall crop: Sow directly outdoors in late summer for fall and early winter harvest.

• Germination time: 7–10 days at 60–70°F (16–21°C)

How to Plant

1. Soil preparation: Rich, well-drained soil with plenty of organic matter.

2. Sowing depth: 1/4 inch deep.

3. Transplanting: Harden off and transplant when seedlings are 3–4 inches tall.

4. Watering: Maintain consistent moisture, especially during hot weather to prevent bolting.

Growing Tips

• Blanch inner leaves (optional) by tying outer leaves together 1–2 weeks before harvest to reduce bitterness.

• Mulch around plants to conserve moisture and suppress weeds.

• Avoid high nitrogen fertilizer—too much can cause leaf tip burn.

• Protect from aphids and slugs with organic methods if needed.

Harvesting

• Harvest whole heads when full and firm, about 8–12 inches wide.

• Alternatively, harvest outer leaves as needed and let the plant continue growing.

• Best flavor is achieved in cooler weather.

Companion Plants

Pairs well with carrots, onions, and radishes. Avoid planting near fennel or other strong competitors.

Why Grow Green Curled Ruffec Endive?

With its decorative ruffled texture and refined bitter flavor, this endive is perfect for mixed salads, braising, or grilled dishes. It's cold-hardy, reliable, and ideal for extending your leafy green harvest into the cooler months.