jungle rice (Echinochloa colona), photographi

How to Grow Jungle Rice

Echinochloa colona · Zones 7-13

Jungle Rice is a cover crop — grown to build and protect the soil rather than for a harvest of its own. It's hardy across USDA zones 7 through 13 and grows just as well in a container as in the ground.

Jungle Rice — the short answer

Jungle Rice: grown in zones 7–13, full sun, pH 5–7.

USDA zones
7–13
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
5–7
FAO ECOCROP
Sun
Full Sun
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 Jungle Rice is

Jungle Rice reaches around two feet at maturity. It blooms green in late spring. It's also well suited to containers.

How to grow Jungle Rice

Jungle Rice grows in USDA zones 7 through 13. Jungle Rice does best in full sun — at least 6 hours of direct sun a day — and soil from pH 5 to 7, on evenly moist to well-drained ground. It needs a growing season of at least 45 frost-free days, which is why climate matters as much as soil.

USDA Zones

7-13

USDA PHZM 2023

Soil pH

5 - 7

FAO ECOCROP

Sun

Full Sun

Growable Ground plant catalog

Drainage

poorly (saturated >50% of year), well (dry spells)

Growable Ground plant catalog

Minimum Growing Temperature

42.8°F

Below this it stops growing rather than dies — a pace limit, not a survival limit.

FAO ECOCROP

Mature Height

2 ft

Growable Ground plant catalog

Frost-Free Days

45+

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 jungle rice in full sun with at least 6 hours of direct sun, once the soil has warmed and frost risk has passed.

  2. Match the soil

    Jungle Rice prefers pH 5 to 7 (FAO ECOCROP). 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. A 2–3 inch mulch layer holds moisture without waterlogging.

  4. Turn it in before it seeds

    Cut jungle rice down or turn it into the soil before it sets seed, while the growth is still green — that's when it returns the most to the ground.

Where Jungle Rice thrives

Jungle Rice is hardy across USDA zones 7 through 13. 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 713 spans average winter lows from 0°F to 70°F (USDA PHZM 2023). Across the 50 states and DC, that band covers 9 outright and splits 32 more down the middle — and which side of that line your land sits on changes the answer.

Zones 7–13 highlighted on the USDA national hardiness zone map

Zones 7–13·Where Jungle Rice growsOpen map →

Continental US shown — Alaska and US Pacific territories sit outside the federal map's polygon dataset.

This map is derived from the USDA ARS / PRISM Plant Hardiness Zone Map (2023) and is not the official USDA Plant Hardiness Zone Map.

Where Jungle Rice stands, state by state

Jungle Rice is rated for zones 713 — a cold floor USDA puts at 0 to 10°F. Across the 50 states and DC, 9 sit fully inside that band, the line runs through 32 more, and 10 sit outside it — and inside every split state, the same line runs on at county grain.

Fully inside zones 7–13

9 states

3 of 9 shown

The line runs through

32 states

3 of 32 shown

Jungle Rice’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.

Outside zones 7–13

10 states

3 of 10 shown

Winter cold is the limit here — the same plant often works in a container that comes under cover. Each link is that state’s own growing hub.

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 Jungle Rice

In rotation planning, jungle rice counts as a Grass — beds recover best when grass 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

Good news for pet owners — jungle rice isn't known to be toxic to dogs or cats. (Source: ASPCA.)

Jungle Rice isn't classified as a notable pollinator plant in our data — pair it with high-value bloomers nearby to feed bees.

Your land is one point inside Jungle Rice'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 Jungle Rice will thrive on your land

Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether jungle rice 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 Jungle Rice

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 Jungle Rice in my zone?

Jungle Rice grows in USDA hardiness zones 7 through 13 (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 Jungle Rice?

Most growers plant jungle rice after the last spring frost, once the soil has warmed, leaving enough of the season for its 45-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 Jungle Rice need?

Jungle Rice needs full sun — a spot that catches at least 6 hours of direct summer sun a day. In more shade it still grows, but usually gives a smaller, later crop. The catch is that a yard rarely gets even light everywhere — a fence, the house, or one tall tree can quietly take those hours. A Growable Ground report reads the real sun-hours across your land, canopy and buildings included, so you can pick the brightest bed before you plant.

What soil does Jungle Rice need?

Jungle Rice prefers soil pH 5 to 7, on evenly moist to well-drained ground (FAO ECOCROP). Your report scores your parcel's actual soil against that using USDA SSURGO data.

Does Jungle Rice attract pollinators?

Jungle Rice isn't classified as a notable pollinator plant in our data. Pairing it with high-value bloomers nearby keeps bees and butterflies fed.

Is Jungle Rice safe for pets?

Jungle Rice is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)