🥕 Parsnip
How to grow
Direct sow in early spring as soon as soil can be worked — parsnips need the FULL season, so don't dawdle. Fresh seed only (viability tanks after a year); sow 1/2 inch deep and keep moist for the 2–3 week germination, which tests everyone's patience. Mark rows with radishes — they'll sprout fast and show you where the parsnips are hiding.
Deep, loose, stone-free soil is mandatory — rocks and hardpan fork the roots into Lovecraftian shapes (amusing, but less edible). In Florida and the deep South, parsnips are marginal — they need cold to sweeten and a long cool season; try them as a fall-planted, winter-harvested experiment. Everywhere else: sow spring, ignore until after frost, harvest sweet.
Water & feeding
About 1 inch per week, steady. Inconsistent water = cracked, forked roots. Light feeder — too much nitrogen gives you magnificent tops and pathetic roots. A little worm castings at planting is plenty; parsnips do best in soil that fed a heavier crop the year before.
Common problems
- Carrot rust fly: row cover from sowing — the flies find roots by scent, and a physical barrier is the only reliable organic control.
- Parsnip canker: dark lesions on shoulders, worse in wet soil. Improve drainage, don't overwater, choose resistant varieties.
- Forking: caused by stones, hardpan, or fresh manure. Prep the bed deep and skip fresh manure — compost only.
Harvest
Wait for frost — cold converts starches to sugars and transforms parsnips from bland to sublime. Dig after 2–3 frosts (or leave in ground under heavy mulch and harvest all winter in mild zones). Twist off tops, store in damp sand in a cold spot for months.