Download Free Vegetable Growing Guide PDF

Growing Castelfranco Endive Vegetable Seeds

To start Castelfranco Endive from seed, sow seeds either indoors 4-6 weeks before your last frost date or directly into the garden once the soil has warmed to about 60 F. Castelfranco Endive is a cool-weather crop, best grown in spring or fall. In hot climates, plant in late summer for a fall harvest to avoid bolting. Use a light seed-starting mix (such as coconut coir) and sow the seeds about 0.25 inches deep. Keep the soil evenly moist but not soggy. Germination typically occurs in 4-7 days when the temperature is between 59-64 F. Provide plenty of light or place under grow lights to ensure strong seedlings.

Once seedlings develop a couple of true leaves and nighttime temps stay above 50F, transplant them outdoors, spacing them 12 inches apart in rows 18-24 inches apart. Choose a sunny location with well-drained, fertile soil enriched with compost. If temperatures are expected to exceed around 77F, afternoon shade can be beneficial. Water regularly to maintain even moisture, which helps prevent the plant from bolting (going to seed too early).

Applying a layer of mulch can help retain soil moisture and suppress weeds. Be vigilant for common pests such as aphids and slugs, and employ organic control methods if infestations occur. Regularly inspect the plants for signs of disease and remove any affected foliage promptly to maintain plant health. Light feedings with a balanced fertilizer during the season can promote healthy leaf growth. Avoid over-fertilizing, as it may make the leaves too bitter or promote loose heads instead of tight ones.

Castelfranco Endive in the Vegetable Garden

Castelfranco Endive is primarily grown as a leafy green, but it can serve several purposes in a home or market garden. While not a traditional companion plant, its dense growth can help suppress weeds. Its rapid leaf production and beautiful form make it a good border plant in edible landscaping. It can be grown as a baby green or microgreen for salads, and it offers a mild bitterness that complements other greens in mixes.

Harvesting Castelfranco Endive

You'll know it is ready to harvest when the plant forms a firm, full-sized rosette with its characteristic creamy-white color and red speckles. To harvest, use a sharp knife to cut the head at the base, just above the soil line. After harvesting, remove any damaged or soiled outer leaves. The harvested heads can be stored in the refrigerator for up to two weeks, maintaining their crisp texture and mild flavor. You can also harvest individual outer leaves for a "cut-and-come-again" approach, especially when grown for baby greens or edible landscaping.

About Castelfranco Endive Garden Seeds

Hailing from the Veneto region of Italy, Castelfranco is believed to be a 19th-century cross between Treviso radicchio and escarole.

It’s been a staple in European markets for decades but has gained popularity in North America for its unique flavor and appearance.

Castelfranco has earned the Indication of Geographic Protection (IGP) status in Italy.

Endive is rich in fiber, folate, and vitamins A and K.

Tips From Our Gardeners

Endive, especially the beautiful Castelfranco variety, is one of my favorite recommendations for edible landscapers. The rosettes are beautiful, and they can grow much earlier in the season than many other edible plants. It’s a win-win!

- Lara Wadsworth, True Leaf Market Writer

Castelfranco Endive Seeds Per Package:

• 2 g Packet - Approximately 1,500 Seeds
• 0.25 oz - Bulk Seeds - Approximately 5,400 Seeds
• 1 oz - Bulk Seeds - Approximately 21,600 Seeds
• 4 oz - Bulk Seeds - Approximately 86,400 Seeds
• 1 lb - Wholesale - Approximately 345,000 Seeds

Non-GMO Castelfranco Endive seeds are available for Fast Free Shipping on qualifying orders.