jack-in-the-pulpit (Arisaema triphyllum), photographi

How to Grow Jack In The Pulpit

Arisaema triphyllum · Zones 4-9

Jack In The Pulpit is a perennial grown for its white blooms, which open in early summer and return year after year. It's hardy across USDA zones 4 through 9 and shrugs off deer. Its early summer flowers are a modest draw for native bees.

Jack In The Pulpit — the short answer

Jack In The Pulpit: grown in zones 4–9, shade, pH 4.8–7.

USDA zones
4–9
Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
Soil pH
4.8–7
USDA PLANTS
Sun
Shade
Growable Ground Plant Database

Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — each tile names its own row's source, because per-field provenance varies.

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What Jack In The Pulpit is

Jack In The Pulpit grows as a perennial and reaches around two feet at maturity. It blooms white in early summer. It's also deer-resistant.

How to grow Jack In The Pulpit

Jack In The Pulpit grows in USDA zones 4 through 9. Jack In The Pulpit does best in shade — at least 2 hours of direct sun a day — and soil from pH 4.8 to 7. It needs a growing season of at least 175 frost-free days, which is why climate matters as much as soil.

USDA Zones

4-9

USDA PHZM 2023

Soil pH

4.8 - 7

USDA PLANTS

Sun

Shade

Growable Ground plant catalog

Drainage

Data pending

Growable Ground plant catalog

Mature Height

2 ft

Growable Ground plant catalog

Frost-Free Days

175+

The frost-free stretch it needs start to finish — short-season areas may need an indoor head start.

Growable Ground plant catalog

  1. Start the season right

    Plant jack in the pulpit in shade with at least 2 hours of direct sun.

  2. Match the soil

    Jack In The Pulpit prefers pH 4.8 to 7 (USDA PLANTS). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band.

  3. Water steadily

    Keep the root zone evenly moist through establishment. Match watering to the plant's drainage preference and your local rainfall.

  4. Harvest at its peak

    Cut jack in the pulpit blooms in the cool of the morning, just as they open, for the longest display.

Where Jack In The Pulpit thrives

Jack In The Pulpit is hardy across USDA zones 4 through 9. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.

A USDA zone is a 10°F band of average annual extreme winter minimum, so zones 49 spans average winter lows from -30°F to 30°F (USDA PHZM 2023). Across the 50 states and DC, that band covers 33 outright and splits 18 more down the middle — and which side of that line your land sits on changes the answer.

Zones 4–9 highlighted on the USDA national hardiness zone map

Zones 4–9·Where Jack In The Pulpit growsOpen map →

Where Jack In The Pulpit stands, state by state

Jack In The Pulpit is rated for zones 49 — a cold floor USDA puts at -30 to -20°F. Across the 50 states and DC, 33 sit fully inside that band, the line runs through 18 more, and 0 sit outside it — and inside every split state, the same line runs on at county grain.

Fully inside zones 4–9

33 states

3 of 33 shown

The line runs through

18 states

3 of 18 shown

Jack In The Pulpit’s band covers part of each of these states — which side of the line your county sits on changes the answer, and each state page draws it.

State zone extents: USDA Plant Hardiness Zone Map (PHZM) 2023. A zone is a 10°F band of average annual extreme minimum temperature, so a state that splits the band contains the boundary — its own page draws the county line, and a parcel report resolves which side your land sits on.

What grows around Jack In The Pulpit

In rotation planning, jack in the pulpit counts as a Other — beds recover best when other crops don’t follow each other in the same spot year over year. (Growable Ground derivation — crop-rotation group from botanical family)

Good to know

One caution for pet owners — jack in the pulpit is toxic to dogs and cats (moderate severity). Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency. (Source: ASPCA.)

Jack In The Pulpit offers low value to bees and other pollinators. (Source: Lady Bird Johnson Wildflower Center.)

Your land is one point inside Jack In The Pulpit's range

This page resolves to the species. Your state page draws the county line, and a report reads the parcel — the soil pH, drainage, sun, and frost dates on your exact ground, which no species average can see.

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See if Jack In The Pulpit will thrive on your land

Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether jack in the pulpit actually takes — we score it against the real conditions at your address.

Three things about your exact spot that zone averages miss:

Your soil pHYour frost-free daysYour sun & shade

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

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How we know this about Jack In The Pulpit

The figures above are cited per row, not per site: the pH band names this plant’s own source column, the three temperature figures each carry their own, and days-to-maturity cites the publication that actually lists it. All of it comes from the Growable Ground Plant Database — a compilation over FAO ECOCROP, USDA PLANTS, and university Extension sources, published openly with per-field provenance.

Grounded inUSDA PLANTS DatabaseUSDA PHZMASPCA

Frequently asked questions

Can I grow Jack In The Pulpit in my zone?

Jack In The Pulpit grows in USDA hardiness zones 4 through 9 (USDA PHZM 2023). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.

When should you plant Jack In The Pulpit?

Time jack in the pulpit to your own season rather than the calendar, leaving enough of the season for its 175-day frost-free need. Your local frost dates set the exact window — a Growable Ground report reads them for your address.

How much sun does Jack In The Pulpit need?

Jack In The Pulpit is shade-tolerant — it gets by on as little as 2 hours of direct sun, so it earns a place most vegetables can't use. A north-facing strip or the ground under a leafy canopy is right where it belongs. A Growable Ground report shows which corners of your land stay shaded through the day, turning those dim spots into planting spots.

What soil does Jack In The Pulpit need?

Jack In The Pulpit prefers soil pH 4.8 to 7 (USDA PLANTS). Your report scores your parcel's actual soil against that using USDA SSURGO data.

Does Jack In The Pulpit attract pollinators?

Yes — jack in the pulpit's flowers are a modest nectar source for native bees. (Source: Lady Bird Johnson Wildflower Center.)

Is Jack In The Pulpit safe for pets?

Jack In The Pulpit is toxic to pets (dogs,cats) with moderate severity. Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency. (Source: ASPCA.)