Crunchy, flavorful stalks that are surprisingly rewarding to grow. Long growing season but worth the effort. Much tastier than store-bought when homegrown.
Planting calendar
Start seeds indoors
10 weeks before your last spring frost.
Seeds are tiny and slow to germinate (2-3 weeks); needs consistent moisture throughout growing season
Spacing & harvest
Plant spacing: 8-10 inches
Row spacing: 24-30 inches
Days to harvest: 80-120 days
Ready when: Stalks are 8-12 inches tall, firm and crisp; can harvest individual outer stalks or entire plant
Cauliflower — Celery repels cabbage white butterflies
Tomato — Different root zones, efficient use of space
Keep away from
Parsnip — Both in the same family, attract same pests
Get celery planting dates for your exact zone
Lawn Guardian turns this guidance into a schedule timed to your USDA zone and this week's actual weather — and adapts every time you log what you've done.