root
EdibleParsnip
Pastinaca sativa
Considered non-toxic to cats and dogs (source: ASPCA (root not listed; sap is a skin photo-irritant)).
A sunny south-facing window with 6+ hours, or a grow light.
Keep evenly moist — water when the top inch of soil is dry.
Needs a little consistency, but nothing fancy.
Parsnips are a patient, deep-rooted winter vegetable whose sweetness improves after cold weather. They need a tall pot and fresh seed, and reward the long wait with rich, nutty roots.
About Parsnip
Parsnips (Pastinaca sativa) are a patient, deep-rooted winter vegetable from Europe, grown for sweet, nutty roots whose flavor improves after cold weather. They take a long season and a tall container, so they suit a renter willing to wait: a deep pot of 30 cm or more, around 15 litres, in a bright spot. Always sow fresh seed, since parsnip seed loses viability quickly and old seed germinates poorly.
Parsnips are moderate to grow, mostly because of slow, patchy germination and the long timeline. Give them bright light and steady, medium water, and let the long taproot develop straight in deep, loose mix. Leave the roots in place until after a cold snap; chilling converts starch to sugar and sweetens them. From sowing, a harvest is usually around 100 to 130 days away.
What it’s like to grow
Parsnips ask for patience more than skill. The first hurdle is germination, which is slow and uneven, especially from seed that isn't fresh, so buy new each year. Later, forked or stunted roots point to shallow, stony, or compacted mix, so a deep pot of loose soil matters. Water evenly at the medium level and give bright light. The root is non-toxic to cats and dogs, though the sap can irritate skin in sun. For the unhurried grower with a deep container and a long season to spare.
What to expect
First harvest in about 100–130 days. It asks for a little consistency, but nothing fancy. No sunny window? It also does fine under a clip-on grow light.
See what you’ll need to get started ↓Companions
Tips
- Use a deep container (30 cm+) so the long taproot can develop straight.
- Always sow fresh seed each year — parsnip seed loses viability quickly.
- Leave roots until after a cold snap; chilling converts starch to sugar.
Common problems
- Patchy, slow germination, especially from old seed.
- Forked or stunted roots in shallow, stony, or compacted soil.
Common questions
Is Parsnip toxic to cats and dogs?
Parsnip is non-toxic to cats and dogs, which makes it a safe pick if you have pets. Source: ASPCA (root not listed; sap is a skin photo-irritant).
How much light does Parsnip need?
Parsnip wants bright light — a south-facing window with six or more hours of sun, or a grow light to make up for it.
How often should I water Parsnip?
Water Parsnip when the top inch of soil feels dry, then let it drain. Aim for evenly moist, not soggy.
What temperature does Parsnip need?
Parsnip is happiest around 10–21 °C. It tolerates brief dips to about -5 °C, but cold drafts and sudden chills set it back.
How long does Parsnip take to grow?
Expect a first harvest about 100–130 days from sowing under good conditions. A slow, long-season root that needs a deep pot; flavor sweetens noticeably after a cold spell.
Can I grow Parsnip without a sunny window?
Yes. Parsnip does well under an affordable clip-on grow light, so a bright window isn't essential.
How big does Parsnip get?
A feathery top over a long root; sow thinly and thin in a deep pot.
How do I propagate Parsnip?
Sow fresh seed directly in a deep pot; germination is slow and old seed fails.
What pests affect Parsnip?
Watch for carrot fly and aphids. Check new growth and the undersides of leaves often, and treat early with a rinse or insecticidal soap before they spread.
Is Parsnip easy to grow?
Parsnip is moderately easy. It asks for some consistency with light and water, but nothing advanced.
Gear for Parsnip
Gear suggestions to get you started — general picks, not paid placements.
Pet-toxicity from the ASPCA. Care details are general guidance, not professional or veterinary advice; only eat plants you can positively identify as the edible plant and part described. Photo: Veganbaking.net, CC BY-SA 2.0, via Wikimedia Commons (CC-BY-SA). Care info last updated 2026-06-02.