Harris Parsnip

Pure white perfectly straight roots. The slightly sweet flavor is unique in our experience. Parsnips store well and should comprise at least a small part of every northern garden. We keep looking at other parsnips but it is tough to improve on this one. 100 days.

When to Plant

Plant seed in early April or May in a deep, fertile soil that is well prepared. Because parsnip seed is very short-lived, you must obtain a fresh supply each spring.

Spacing & Depth

Plant seeds 1/2 to 3/4 inch deep. Because germination of even the freshest parsnip seed is often mediocre, seed thickly, at least two or three seeds per inch to ensure a good stand. Space rows 18 to 24 inches apart or plants 8 to 10 inches apart in a bed. Parsnip seed is slow to germinate and some gardeners drop a radish seed every foot in the furrow to mark the row and help break the soil crust. Once parsnip seedlings are up and growing, pull the radishes and thin parsnip seedlings to 2 to 4 inches apart.

Care

Keep young parsnip plants free of weeds by shallow hoeing or cultivation. Watch for swallowtail-butterfly caterpillars, which feed on most members of the carrot family. Handpicking the caterpillars from the leaves normally gives adequate control. Water thoroughly once a week in periods of extended dry weather to keep growth from slowing in summer.

Harvesting

Dig the roots (usually 1 1/2 to 2 inches in diameter and 8 to 12 inches long) with a shovel, tilling spade or spading fork. Yields frequently exceed one pound per foot of row (single roots may weigh more than one pound each).