Planting zone for 55359 — Maple Plain, MN
ZIP code 55359 (Maple Plain, Hennepin County) is in USDA zone 4b: the coldest winter night averages −25 to −20 °F. The median last spring frost is April 30 and the first fall frost October 8.
Where ZIP 55359 is
Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoomNot the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.
Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 4b means →
Frost forecast — next 7 nights
live from the National Weather ServiceLoading the forecast for Maple Plain, MN…
Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.
Frost dates in Maple Plain, MN
A hard freeze (28 °F) usually ends around April 22 and returns around October 19.
From the NOAA station Delano, MN — 5 miles away, elevation 974 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.
When to plant vegetables in 55359
Counted from the median last spring frost (Apr 30) and first fall frost (Oct 8) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.
When spring arrived in 2026
In 2026, spring leaf-out near 55359 came on Apr 11 — 6 days earlier than the 1991–2020 average (Apr 17).
Apr 172026
Apr 11
The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).
Native plants for zone 4b in Minnesota
497 plants native to the lower 48 states, recorded in Minnesota, and rated by the USDA to survive −25 °F or colder — the bottom of zone 4b. Each links to its USDA PLANTS profile.
Trees 47
Shrubs 88
Wildflowers & perennials 190
Grasses 156
Vines 4
Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Maple Plain, MN.
Soil in Maple Plain, MN
The soil mapped at the center of ZIP 55359 is Muskego — muck, very poorly drained.
Map unit: Muskego and Houghton soils, 0 to 1 percent slopes.
Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 55359; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.
Climate in Maple Plain, MN
Average high and low, by month
Precipitation by month inches · ❄ = snowfall
NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Delano, MN (5 mi away); precipitation: Rockford, MN (6 mi away). Daylight is calculated from latitude.
Nearby ZIP codes
1 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.
All 4 ZIP codes in Maple Plain → · Minnesota planting zones →
Questions about 55359
What planting zone is ZIP code 55359?
ZIP code 55359 (Maple Plain, MN) is in USDA hardiness zone 4b on the 2023 map: the coldest night of an average winter reaches −25 to −20 °F (−31.7 to −28.9 °C).
When is the last frost in Maple Plain, MN?
The median last spring frost (32 °F) near 55359 is April 30; after May 14 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Delano station.
When is the first frost in Maple Plain, MN?
The median first fall frost near 55359 is October 8, giving a median frost-free growing season of 159 days.
When should I plant tomatoes in 55359?
Start tomato seeds indoors around Mar 5 – Mar 19 and set transplants outside around May 7 – May 21, one to three weeks after the median last frost.
How much rain and snow does 55359 get?
About 30.6 inches of precipitation a year and 45 inches of snowfall (NOAA 1991–2020 normals, Rockford station).
How hot do summers get in Maple Plain, MN?
The average high peaks at 83 °F in July, with about 8 days a year at 90 °F or more.
What kind of soil does 55359 have?
The USDA soil survey maps Muskego at the center of ZIP 55359: muck, very poorly drained, pH about 6.7 (neutral).
Did spring come early in Maple Plain, MN in 2026?
Spring leaf-out near 55359 came on Apr 11 in 2026, 6 days earlier than the 1991–2020 average (Apr 17), according to the USA National Phenology Network Spring Index.
What kind of onions grow in Maple Plain, MN?
Long-day onions: the longest day near 55359 is 15 h 37 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).