Celery

Growing Celeriac - Well-Drained Substrate, Sunny Location, Minimal Watering

Celeriac, also known as celery root or turnip-rooted celery, is a vegetable increasingly popular in European gardens. Its cultivation requires specific conditions, but with proper care, you can achieve an excellent harvest of this aromatic root vegetable.

Ideal Substrate for Celeriac

The foundation for successful celeriac cultivation is well-drained substrate with high organic matter content. Celeriac thrives in loose, nutrient-rich soil with neutral to slightly alkaline pH (6.5-7.5). Heavy, waterlogged soils lead to root rot and poor development.

Substrate Preparation:

• Work mature compost or well-rotted manure into the soil several weeks before planting
• Ensure good drainage - if necessary, add sand or perlite
• The soil should be deep and loose to allow for proper root development
• Ideal soil temperature for planting is 10-15°C

Sunny Location - Key to Success

Celeriac is a light-demanding plant requiring full sun exposure for at least 6-8 hours daily. Insufficient light results in weak plant growth and small roots with less intense flavor.

Location Requirements:

• Sunny spot without shade from trees or buildings
• Protection from strong winds that can damage leaves
• Avoid planting in locations where celery, carrots, or parsley grew the previous year
• Ideal crop rotation companions are legumes or brassicas

Watering Strategy - Less is More

Despite seeming paradoxical, celeriac requires minimal watering once established. The key is regular but moderate moisture rather than excessive watering.

Watering Rules:

• Water regularly during the first weeks after transplanting
• Once established, water only during prolonged drought
• Avoid overhead watering - water at the base to prevent fungal diseases
• The soil should be slightly moist but never waterlogged
• Excessive watering leads to rapid leaf growth at the expense of root development

Growing Tips

Sowing and Transplanting:

Celeriac has a long growing season (150-180 days), so start seeds indoors in February-March. Transplant seedlings outdoors in May when frost danger has passed. Plant spacing should be 30-40 cm between plants.

Nutrition:

Celeriac is a heavy feeder requiring regular fertilization. Use balanced fertilizers with higher potassium content to support root development. Organic fertilizers like compost or nettle tea work excellently.

Root Care:

During growth, gradually remove lower leaves and side shoots. Occasionally expose the top of the root to promote even development. This practice also helps prevent rotting.

Common Problems and Solutions

Pests:

• Celery fly - use fine mesh netting or plant resistant varieties
• Aphids - spray with soapy water or use biological control
• Slugs - use beer traps or diatomaceous earth

Diseases:

• Septoria leaf spot - ensure good air circulation and avoid overhead watering
• Root rot - improve drainage and avoid overwatering
• Powdery mildew - maintain optimal spacing between plants

Harvesting and Storage

Harvest celeriac when roots reach 8-12 cm diameter, typically in October before the first hard frost. Roots can tolerate light frost, which often improves their flavor.

Storage:

• Store in a cool, humid place (0-4°C)
• Place roots in sand or sawdust in wooden crates
• Under proper conditions, celeriac keeps for several months
• Leaves can be dried and used as seasoning

Conclusion

Growing celeriac is not difficult if you follow basic principles: well-drained substrate, sunny location, and moderate watering. With patience and proper care, you'll be rewarded with a harvest of aromatic roots perfect for soups, salads, and side dishes. Celeriac is an excellent choice for gardeners looking to expand their vegetable repertoire with something interesting and nutritious.