Celery Growing Guide Apium graveolens Crop Rotation Group Umbelliferae (Carrot and root family) ● Soil Rich, moisture-retentive soil with plenty of compost dug in before planting. Position Shade or partial afternoon shade. Frost tolerant Light frost only, damaged by hard freezes. Feeding Liquid feed every two weeks throughout the season. Spacing Single Plants: 7" (20cm) each way (minimum) Rows: 5" (15cm) with 11" (30cm) row gap (minimum) Sow and Plant Sow indoors in early spring, and set out transplants when they are big enough to handle. Our Garden Planner can produce a personalised calendar of when to sow, plant and harvest for your area. Notes Garden-grown celery is looser and darker green than the supermarket version, with much more intense flavor. Provide water as needed to the soil moist in dry weather. Harvesting Cut individual stalks as needed in the kitchen, or pull entire plants. Troubleshooting Resents hot, humid weather. Planting and Harvesting Calendar < Back to All Plants Pests which Affect Celery Aphid, Black Bean Aphids (General) Carrot Rust Fly Slug Snail Plant Diseases which Affect Celery Carrot Powdery Mildew Celery Root Knot Nematodes Celery Viruses