Growing Celery Root: A Comprehensive Guide
Celery root, also known as celeriac, is a versatile vegetable with a mild celery flavor and a texture similar to turnips. Growing celery root in your home garden can provide you with a fresh, local source of this unique vegetable. In this guide, we'll walk you through the process of growing celery root, from selecting the right variety to harvesting and storing your crop.
Selecting the Right Variety
When choosing a celery root variety, consider the climate and space available in your garden. Some popular varieties include 'Brussels', 'Tardivo di Prato', and 'Monstrueux Blanc à Cou'. 'Brussels' is a compact variety that's well-suited for container gardening, while 'Tardivo di Prato' is known for its cold hardiness and 'Monstrueux Blanc à Cou' produces large roots.
Preparing the Soil
Celery root prefers well-draining, loose, and fertile soil with a pH between 6.0 and 7.0. Work in plenty of organic matter, such as compost or well-rotted manure, before planting. The ideal soil temperature for germination is between 60°F and 70°F (15°C and 21°C).

Planting Celery Root
Sow celery root seeds indoors 8 to 10 weeks before the last spring frost. Plant seeds ¼ inch deep in seed-starting mix, keeping the soil consistently moist. Once seedlings have developed their first set of true leaves, thin them to stand about 2 inches apart. Transplant seedlings outdoors after the danger of frost has passed.
When transplanting, space plants 12 to 18 inches apart in rows that are 24 to 36 inches apart. Plant seeds directly outdoors in spring if you live in a mild climate. In this case, sow seeds ¼ inch deep and thin seedlings to stand 12 inches apart.
Caring for Celery Root
- Watering: Keep the soil consistently moist but not waterlogged. Celery root has shallow roots, so water deeply once or twice a week, depending on rainfall.
- Fertilizing: Apply a balanced, organic fertilizer every 4 to 6 weeks during the growing season. Alternatively, side-dress plants with compost or well-rotted manure mid-season.
- Mulching: Apply a 2- to 3-inch layer of organic mulch around plants to suppress weeds, retain moisture, and regulate soil temperature.
- Pest and disease management: Monitor plants for pests such as aphids, whiteflies, and slugs. Use organic or chemical controls as needed. Keep the garden clean to prevent disease, and avoid overhead watering to minimize fungal issues.
Harvesting and Storing Celery Root
Harvest celery root when the roots are about 2 to 3 inches in diameter, usually 120 to 150 days after planting. Gently dig around the root with a fork to loosen the soil, then pull the plant out. Trim the foliage back to about 1 inch above the root.

To store celery root, place it in a plastic bag in the refrigerator crisper drawer. It should keep for 2 to 3 months. Alternatively, you can freeze celery root by peeling, chopping, and blanching it before freezing.
Growing Celery Root in Different Climates
| Climate | Planting Time | Harvest Time |
|---|---|---|
| Cool climates (USDA zones 4-7) | Start seeds indoors 10-12 weeks before last spring frost. Transplant outdoors after danger of frost. | Harvest in late summer to early fall. |
| Warm climates (USDA zones 8-10) | Sow seeds directly outdoors in spring. In mild winter areas, you can also sow in fall for a winter harvest. | Harvest in fall or winter, depending on planting time. |
Growing celery root can be a rewarding experience, providing you with a unique and delicious vegetable to enjoy throughout the year. By following the tips outlined in this guide, you'll be well on your way to a successful celery root harvest. Happy gardening!