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Northern Lakes and Forests
Region profile

Northern Lakes and Forests

Northern Lakes and Forests is a glaciated border region across the US and Canada characterized by mixed forests, numerous clear glacial lakes, nutrient-poor glacial soils, and economic activities including forestry, recreation, and iron ore mining.

Zone

Interior

Common Name

Northern Lakes and Forests

CEC Level III Code

5.2.1

CEC Level II Code

5.2 Mixed Wood Shield

Overview

About This Region

The Northern Lakes and Forests region is characterized by extensive forests, numerous lakes, and a humid continental climate, creating vital habitats for a diverse range of pollinators. Factors like habitat fragmentation due to logging and agriculture, climate change impacting bloom times, and pesticide use pose significant threats. Conservation efforts focusing on sustainable forestry, protecting riparian zones, and promoting native wildflower diversity are essential for supporting the bees, butterflies, and other insects critical to the region’s ecology and agriculture.

Region facts

At a glance

AliasesNorthern Lakes and Forests, CEC 5.2.1, Northern Lakes & Forests
Geographic Range
This ecoregion sits astride the US-Canada border, encompassing southeast Manitoba, southwest Ontario, northeastern Minnesota, northern Wisconsin, and northern Michigan.
Climate SnapshotThe Northern Lakes and Forests ecoregion has a severe, mid-latitude, humid continental climate with warm summers and severe winters, an average annual temperature of 2°C to 6°C, and an average annual precipitation of 768 mm.
Terrain ProfileThe terrain is varied, featuring glaciated, irregular plains, undulating morainal plains and hills, broad lacustrine basins, and extensive sandy outwash plains, predominantly underlain by Precambrian igneous and metamorphic rocks.
Vegetation CoverThe vegetation is characterized by mostly coniferous and northern hardwood forests, including species like sugar maple, white pine, red pine, and white spruce.
Wildlife HabitatThe Northern Lakes and Forests region is rich in wildlife, including large mammals like moose and black bear, predators such as the gray wolf and lynx, various birds including the bald eagle and common loon, and fish like walleye and brook trout.

Eco snapshot

What shapes this region

Climate pattern

  • Winters are typically long; spring arrives unevenly across the landscape.
  • Lakes can moderate nearby temperatures, shifting bloom times locally.
  • Microclimates (small local weather differences) are common around shorelines, slopes, and forest edges.

Vegetation profile

The vegetation is characterized by mostly coniferous and northern hardwood forests, including species like sugar maple, white pine, red pine, and white spruce.

Wildlife profile

The Northern Lakes and Forests region is rich in wildlife, including large mammals like moose and black bear, predators such as the gray wolf and lynx, various birds including the bald eagle and common loon, and fish like walleye and brook trout.

Why pollinators matter here

  • Early-season flowers help queen bumble bees and other early pollinators refuel after winter.
  • Summer blooms support a wide range of native bees, flies, butterflies, and beetles.
  • Late-season flowers help pollinators build energy reserves before cold weather.
  • Diverse native plants can support more kinds of pollinators than a single “pretty” planting.

Seasonal timing

Planting seasons

Timing varies by microclimate; use this as a flexible guide.

Seasonal timing

  • Spring: Focus on early-blooming natives and flowering shrubs; watch for late cold snaps.
  • Summer: Build your “main bloom” with a mix of heights and flower shapes.
  • Late summer/fall: Prioritize late bloomers so pollinators aren’t left without food.
  • Late fall: Planting can work in some sites; many people also prep beds and plan for next year.

Quick seasonal checklist

  • Choose plants for sun vs. shade and dry vs. moist spots.
  • Aim for at least 3 bloom windows (early, mid, late).
  • Add nesting habitat (bare soil patch, stems, leaf litter area).
  • Keep it pesticide-free from day one.

Yearly needs

Pollinator calendar

What pollinators need throughout the year, and what to do about it.

Late winter / early springEarly nectar and pollen; safe places to emergePlant/plan for early bloomers; leave some leaf litter and stems until warmer weather is settled
SpringA steady ramp-up of blooms; nesting sitesAdd spring flowers and shrubs; keep a small patch of undisturbed soil; avoid pesticide use
SummerContinuous flowers; water; shade/shelter during heatPlant a diverse mix; include shallow water (pebbles in a dish); keep blooms coming in sun and part-shade
Late summer / fallHigh-energy nectar; last-chance pollen; overwintering prepPrioritize late bloomers; avoid heavy fall cleanup; leave seedheads and stems where safe
WinterShelter for overwintering insects and next year’s habitatLeave stems/leaf litter in a “messy corner”; plan next season’s bloom sequence

Seed mix concept

A Billion Small Steps Seed mix

A simple way to plan a pollinator patch is to think in three layers, so something is always blooming:

Spring starter

Early bloomers (including early-flowering shrubs where space allows) to support emerging pollinators.

Summer bridge

Dependable mid-season flowers that carry the garden through peak activity.

Fall finisher

Late-season nectar and pollen plants (often asters and goldenrods) to help pollinators prepare for winter.

What You Can Do

Make a difference for native habitats.

Turn this knowledge into action. Whether you plant a single pot or a whole garden, you are building a vital bridge for local biodiversity.

Join the movement to restore our shared habitats.

Native plants

Plants that thrive in this region

Alders (*Alnus* spp.)

Alders

Alders are fast-growing trees in the genus Alnus that are especially useful in damp spots and along edges where you want quick cover and early-season pollen for insects.

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Asters (*Symphyotrichum* spp.)

Asters

Asters are late-season wildflowers that bring a burst of daisy-like blooms when many gardens are winding down, making them a reliable choice for pollinator-friendly planting.

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Birches (*Betula* (genus))

Birches

Birches are graceful trees in the genus Betula, known for their often light-colored bark and early-season pollen and catkins that support springtime insects.

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Blueberries & huckleberries (*Vaccinium* (genus))

Blueberries & huckleberries

Blueberries and huckleberries (genus Vaccinium) are berry-producing shrubs with spring flowers that can support pollinators and later feed people and wildlife—great for gardens, schoolyards, and even large containers.

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Clovers (*Trifolium* spp.)

Clovers

Clovers are small, easygoing plants in the genus Trifolium that can add nectar and pollen to gardens, lawns, and pots while helping cover bare soil.

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Fireweed (*Chamerion* spp.)

Fireweed

Fireweed is a tough, fast-growing wildflower in the genus Chamerion that brings bright pink blooms and lots of pollinator activity to sunny, open spaces.

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Fleabanes (*Erigeron* spp.)

Fleabanes

Fleabanes (genus Erigeron) are easygoing wildflowers with daisy-like blooms that can brighten gardens, schoolyards, and balcony pots while offering steady nectar and pollen for many small pollinators.

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Goldenrods (*Solidago* spp.)

Goldenrods

Goldenrods are tough, sunny wildflowers in the genus Solidago that light up late-season gardens with golden blooms and provide reliable nectar and pollen when many other flowers are fading.

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Kinnikinnick (Arctostaphylos spp.)

Kinnikinnick

Kinnikinnick is a tough, low-growing evergreen groundcover in the genus Arctostaphylos (often called bearberry) that forms a tidy mat and offers small spring flowers followed by red berries.

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Manzanitas (West) (Arctostaphylos spp.)

Manzanitas

Manzanitas are tough, beautiful western shrubs with urn-shaped flowers that can feed early-season pollinators and evergreen leaves that keep gardens looking good year-round.

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Poplars, aspens & cottonwoods (*Populus*)

Poplars, aspens & cottonwoods

Poplars, aspens, and cottonwoods (genus Populus) are fast-growing trees best known for their fluttering leaves and soft “cottony” seeds. They can support early-season pollinators with spring catkins, but they’re also big, thirsty, and often short-lived in small yards—so they’re best chosen with space and roots in mind.

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Rushes (*Juncus* spp.)

Rushes

Rushes are tough, grass-like wetland plants (genus Juncus) that thrive in damp soil and help create calm, sheltered habitat at the edges of ponds, rain gardens, and low spots.

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Sedges (*Carex* (genus))

Sedges

Sedges (genus Carex) are grass-like plants that form tidy clumps and thrive in many garden conditions, especially where soil stays a bit damp. They add texture, cover bare ground, and can support small wildlife by providing shelter and nesting material.

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Willowherbs (*Epilobium* spp.)

Willowherbs

Willowherbs (genus Epilobium) are easygoing wildflowers that pop up in sunny, open spots and offer simple, nectar-rich blooms that many small pollinators can use.

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Willows (*Salix* spp.)

Willows

Willows are fast-growing trees and shrubs in the genus Salix that offer some of the earliest pollen and nectar of the year, making them a strong choice for pollinator-friendly yards, parks, and school grounds.

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Yarrow (*Achillea millefolium*)

Yarrow

Yarrow is a tough, easygoing wildflower that brings long-lasting blooms and steady pollinator visits to gardens, schoolyards, and even containers.

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Pollinators

Pollinators active in this region

Bee flies (Family Bombyliidae)

Bee flies

Adults visit flowers for nectar and can move pollen between blooms; their presence is a sign of diverse, functioning habitats.

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Bumble bees (Genus Bombus)

Bumble bees

Bumble bees are important pollinators of many wildflowers and garden plants, helping ecosystems and food crops reproduce.

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Dance flies (Family Empididae)

Dance flies

Many visit flowers for nectar and can move pollen between blooms while also playing important roles in local food webs.

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Flower flies / hoverflies

Adults visit flowers for nectar and pollen, and many species’ larvae help keep plant-eating pests in check.

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Geometer moths (Family Geometridae)

Geometer moths

Adults can help move pollen as they nectar at flowers, and their caterpillars are an important part of local food webs.

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Hawk / sphinx moths (Family Sphingidae)

Hawk / sphinx moths

They can move pollen between flowers while feeding on nectar, especially for blooms that open or scent up in the evening.

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Small nectar moths (micro-moths) (Multiple families (varies))

Small nectar moths (micro-moths)

Many small moths move pollen while feeding on nectar, supporting wild plants and garden blooms—especially in the evening and at night.

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Soldier flies (Family Stratiomyidae)

Soldier flies

Many adults visit flowers for nectar and can move pollen between blooms while feeding.

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Whites & sulphurs (Family Pieridae)

Whites & sulphurs

They visit a wide range of flowers for nectar and can help move pollen between blooms as they feed.

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