Parsley Root (Hamburg Parsley) in Zone 7a & 7b

Petroselinum crispum var. tuberosum

Yes, parsley root (Hamburg parsley) grows in zones 7a and 7b. Plant it outside Apr 10–Apr 17.

When to plant parsley root (Hamburg parsley) in zone 7b

Zones 7a and 7b share the same average frost dates, so this page covers both.

Method: Direct sow: Direct-sow outside. It doesn't transplant well, or doesn't need the extra time indoors.

Start indoorsNot typically started indoors
Direct sow / transplant outsideApr 10–Apr 17
Estimated harvestJul 9–Jul 16 (~90 days after direct-sowing)

Spacing: 9 per square foot (square-foot-gardening spacing). Mature height: 0.5-1 ft.

Plant alongside it in zone 7b

These go outside within two weeks of parsley root (Hamburg parsley) in zone 7b, so one planting day can cover them.

Parsley Root (Hamburg Parsley)
Photo: Yelkrokoyade via Wikimedia Commons, CC BY-SA 3.0, cropped.

Parsley root, also called Hamburg parsley, is grown for its long, white, parsnip-like root rather than its leaves, though the foliage is edible too and tastes just like standard parsley.

How parsley root (Hamburg parsley) fits zone 7's season

Zone 7b's frost-free window runs about 198 days, from April 10 to October 25. Parsley root (Hamburg parsley) needs about 90 days from sowing to first harvest.

Parsley Root (Hamburg Parsley) planting windows in every zone

Zone 7b is highlighted. Useful for comparing against a neighbouring zone, or for a garden somewhere else.

ZoneStart indoorsSow or plant outHarvest
2a & 2bNot usuallyMay 20–May 27Aug 18–Aug 25
3a & 3bNot usuallyMay 30–Jun 6Aug 28–Sep 4
4a & 4bNot usuallyMay 15–May 22Aug 13–Aug 20
5a & 5bNot usuallyMay 10–May 17Aug 8–Aug 15
6a & 6bNot usuallyApr 25–May 2Jul 24–Jul 31
7a & 7b (your zone)Not usuallyApr 10–Apr 17Jul 9–Jul 16
8a & 8bNot usuallyMar 25–Apr 1Jun 23–Jun 30
9a & 9bNot usuallyFeb 15–Feb 22May 16–May 23
10a & 10bNot usuallyJan 30–Feb 6Apr 30–May 7
11a & 11bNot usuallyJan 1–Jan 8Apr 1–Apr 8

Harvest dates are about 90 days after the sow or plant-out date.

Zone 2 sows before zone 3 here, which looks wrong and is not. USDA zones rank winter cold, not season length, and zone 2 is mostly interior Alaska, where hard winters come with warm summers. More on what a zone measures.

Good companions

No well-established companions for parsley root (Hamburg parsley).

Where to buy parsley root seeds

None of the seed suppliers we list carries parsley root seeds right now. A local garden center or a specialty seed house is the place to look.

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See it growing

Search YouTube for "growing parsley root (Hamburg parsley)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)

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Growing Parsley Root (Hamburg Parsley) in USDA zone 7b

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Growing Parsley Root (Hamburg Parsley) in USDA zone 7b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.

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