Growing Celery in California

California’s diverse climate allows for growing celery almost year-round, especially in regions with mild, coastal climates. Celery thrives in cool temperatures, making it an excellent crop for California gardeners.

Best Time to Plant
In California, the best planting time for celery depends on your region. In coastal areas with mild temperatures, you can plant celery almost year-round. In inland areas with hot summers, it’s best to plant in early spring (February to March) or in late summer (August to September) for a fall harvest. Start seeds indoors 10-12 weeks before transplanting them outdoors.

Soil and Watering Needs
Celery prefers rich, well-drained soil with plenty of organic matter. Incorporate compost or well-rotted manure into the soil before planting. California’s dry climate means celery will need regular watering to ensure the soil stays consistently moist. Since celery has shallow roots, it’s important to avoid letting the soil dry out, especially during warm spells. Mulching around the base of the plants can help retain moisture.

Sunlight and Temperature
Celery grows best in full sun but can tolerate partial shade in regions with hotter summers, such as inland California. Daytime temperatures between 60-70°F are ideal for celery, so avoid growing it during the hottest parts of the year in inland areas. Coastal regions, with their cooler, consistent temperatures, offer perfect growing conditions for celery year-round.

Harvesting Tips
Celery takes around 85-120 days to mature. You can begin harvesting once the stalks reach 8-12 inches tall. Harvest the outer stalks first, allowing the inner ones to continue growing. In California’s coastal areas, you can enjoy multiple harvests from the same plants, especially with good irrigation and care. Inland gardeners can focus on spring and fall harvests to avoid the summer heat.