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Middle Atlantic Coastal Plain
Region profile

Middle Atlantic Coastal Plain

Middle Atlantic Coastal Plain is an ecoregion covering parts of the outer coastal plain from southern New Jersey to the South Carolina/Georgia border, characterized by a mild, humid subtropical climate, historically dominated by longleaf pine forests, low gradient streams, numerous wetlands, and land use focused on pine plantations, cropland, and coastal recreation.

Zone

Prairie

Common Name

Middle Atlantic Coastal Plain

CEC Level III Code

8.5.1

CEC Level II Code

8.5 Mississippi Alluvial and Southeast USA Coastal Plains

Overview

About This Region

The Middle Atlantic Coastal Plain spans a varied landscape where development, agriculture, and habitat fragmentation significantly impact pollinator health. This region supports vital native plants, but invasive species and pesticide use pose threats to butterflies, bees, and other insects. Conservation efforts focus on restoring natural habitats and promoting native plants like Butterflyweed and Eastern Purple Coneflower to ensure a resilient pollinator population.

Region facts

At a glance

AliasesMiddle Atlantic Coastal Plain, Mid-Atlantic Coastal Plain
Geographic Range
This ecoregion covers parts of the outer coastal plain, stretching from southern New Jersey to the South Carolina/Georgia border.
Climate SnapshotThe Middle Atlantic Coastal Plain has a mild, mid-latitude, humid subtropical climate with hot, humid summers, mild winters, a mean annual temperature between 14°C and 17°C, a frost-free period of 190 to 300 days, and a mean annual precipitation of 1,229 mm.
Terrain ProfileThe terrain consists of low elevation flat plains, low terraces, dunes, barrier islands, and beaches, underlain by unconsolidated sediments with common poorly drained soils.
Vegetation CoverThe region's vegetation is now mostly loblolly and shortleaf pine, replacing the historic longleaf pine, with patches of oak, sweetgum, and cypress near streams, and maritime forests on barrier islands, along with cordgrass, saltgrass, and rushes in coastal marshes.
Wildlife HabitatThe Middle Atlantic Coastal Plain is home to a variety of animals, including black bear, white-tailed deer, bobcat, gray fox, raccoon, various birds like the wild turkey and mourning dove, and the alligator in the south.

Eco snapshot

What shapes this region

Climate pattern

  • Coastal influence can soften temperature swings compared with inland areas.
  • Humidity is often noticeable, and plant disease pressure can be higher in some gardens.
  • Microclimates (small local weather differences) happen near water, in sheltered yards, and in exposed windy sites.

Vegetation profile

The region’s vegetation is now mostly loblolly and shortleaf pine, replacing the historic longleaf pine, with patches of oak, sweetgum, and cypress near streams, and maritime forests on barrier islands, along with cordgrass, saltgrass, and rushes in coastal marshes.

Wildlife profile

The Middle Atlantic Coastal Plain is home to a variety of animals, including black bear, white-tailed deer, bobcat, gray fox, raccoon, various birds like the wild turkey and mourning dove, and the alligator in the south.

Why pollinators matter here

  • Many native wildflowers and shrubs rely on insects for pollination.
  • Wetland and river corridors can act like “highways” that help pollinators move through the landscape.
  • Long bloom seasons can support multiple generations of pollinators when flowers are available continuously.
  • Habitat fragmentation makes small, pesticide-free patches in yards, schools, and community spaces more valuable.

Seasonal timing

Planting seasons

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

Seasonal timing

  • Late winter/early spring: plan your patch, prep soil, and start with early bloomers where possible.
  • Spring: a common time for planting many natives and setting up watering routines while plants establish.
  • Summer: focus on watering new plantings, adding heat-tolerant bloomers, and avoiding soil disturbance around nests.
  • Late summer/fall: often a good time to plant perennials and shrubs and to add late-blooming flowers.
  • Winter: leave stems/leaf litter for shelter; plan next year’s bloom sequence.

Quick seasonal checklist

  • Choose 3–5 native plants that cover early, mid, and late season bloom.
  • Add at least one shrub or small tree if you have space.
  • Create one nesting feature (bare soil patch, stem bundle, or leaf-litter corner).
  • Commit to pesticide-free care.

Yearly needs

Pollinator calendar

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

Late winter/early springEarly nectar/pollen; safe shelter as they emergePlant/plan for early bloomers; leave last year’s stems and leaf litter in place; avoid spring “clean-up” that removes shelter
SpringSteady blooms; nesting sites starting upPlant a mix of native flowers and at least one native shrub; keep a small patch of bare, well-drained soil for ground nesters
SummerReliable nectar during heat; water accessPrioritize drought-tolerant natives once established; provide a shallow water dish with stones; keep blooms going (no gaps)
Late summer/fallHigh-energy nectar for migration and overwintering prepAdd late-blooming natives; let some plants go to seed; reduce mowing and keep flowering “edges”
WinterUndisturbed shelter (stems, leaf litter, soil)Leave stems standing; keep a “messy corner”; avoid pesticides and unnecessary soil turning

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

Spring starter: early bloomers (often including shrubs or early perennials) to feed emerging pollinators.

Summer bridge

Summer bridge: reliable mid-season flowers that carry the garden through the hottest, busiest foraging period.

Fall finisher

Fall finisher: late-season flowers (often asters and goldenrods) that provide crucial nectar before 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

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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Blackberries & raspberries

Blackberries and raspberries (genus Rubus) are flowering bramble shrubs that can feed pollinators in bloom and people later with tasty berries—great for yards, school gardens, and even large containers with support.

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Blazing stars

Blazing stars (Liatris) are upright, purple-pink wildflowers that bloom in showy spikes and are well-loved by many pollinators. They’re a strong choice for sunny gardens, borders, and meadow-style plantings.

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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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Coneflowers (*Echinacea* (genus))

Coneflowers

Coneflowers (Echinacea) are tough, long-blooming wildflowers that bring steady color and reliable nectar and pollen to gardens, schoolyards, and even large containers.

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Currants & gooseberries (*Ribes* spp.)

Currants & gooseberries

Currants and gooseberries are Ribes shrubs that offer early-season flowers for pollinators and later berries for people and wildlife. They’re a great choice for edible landscapes, mixed borders, and small yards where you want a plant that does more than one job.

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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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Ironweeds (*Vernonia* (genus))

Ironweeds

Ironweeds are tall, purple-blooming wildflowers in the genus Vernonia that bring late-season color and steady nectar to pollinator gardens.

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Joe-Pye weeds (*Eutrochium* spp.)

Joe-Pye weeds

Joe-Pye weeds are tall, late-season native wildflowers in the genus Eutrochium that bring big, fluffy flower clusters to gardens and give pollinators a reliable place to feed when many other plants are winding down.

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Maples

Maples are familiar shade trees that offer early-season flowers and later seeds, supporting a range of pollinators and adding strong structure to yards, school grounds, and streetscapes.

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Milkweeds (*Asclepias* (genus))

Milkweeds

Milkweeds are tough, nectar-rich wildflowers in the genus Asclepias that can turn a garden bed, schoolyard edge, or even a sunny pot into a pollinator stop.

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Mountain mints (Pycnanthemum (genus))

Mountain mints

Mountain mints are tough, fragrant native wildflowers that bloom in summer and are famous for drawing in a busy mix of pollinators. They’re easy to grow, handle a range of garden conditions, and make a great “plant it and watch it” choice for pollinator patches.

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Oaks

Oaks are long-lived trees that can anchor a yard, school ground, or park with shade, structure, and lots of seasonal interest. Many pollinators use oak flowers in spring, and the tree’s leaves and bark support a wide web of life over time.

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Prairie coneflowers (*Ratibida* spp.)

Prairie coneflowers

Prairie coneflowers (Ratibida) are tough, sunny wildflowers with drooping petals and a bold cone-shaped center that pollinators can easily find. They’re a great choice for low-fuss gardens, schoolyards, and naturalized patches where you want long-lasting summer color.

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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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Serviceberries (*Amelanchier* (genus))

Serviceberries

Serviceberries (genus Amelanchier) are small trees with early-season blossoms, edible berries, and strong wildlife value—an easy way to add beauty and pollinator support to a yard, school garden, or even a large container.

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Sunflowers (*Helianthus* spp.)

Sunflowers

Native sunflowers are bright, tough wildflowers in the genus Helianthus that feed pollinators and add cheerful color from mid-season into fall.

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Wild bergamot & bee balms (*Monarda* spp.)

Wild bergamot & bee balms

Wild bergamot and other bee balms (the genus Monarda) are easygoing native wildflowers known for their shaggy, pom‑pom blooms that draw in lots of pollinators. They’re a great choice when you want long-lasting summer color and a plant that feels lively with buzzing visitors.

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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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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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Brushfoots (Family Nymphalidae)

Brushfoots

Many brushfoots move pollen between flowers as they feed, and their caterpillars are part of healthy food webs.

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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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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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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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Leafcutter bees (Genus Megachile)

Leafcutter bees

They move pollen between flowers while foraging, helping many wild plants and garden plants set seed and fruit.

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Mason bees (Genus Osmia)

Mason bees

They move pollen between flowers while foraging, helping many wild plants and garden crops set seed and fruit.

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Mining bees (Genus Andrena)

Mining bees

They move pollen between flowers while foraging, helping many wild plants and garden plants set seed and fruit.

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Paper wasps (Genus Polistes)

Paper wasps

They can move pollen while drinking nectar, and they also help control many plant-eating insects.

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Silkmoths (giant moths) (Family Saturniidae)

Silkmoths (giant moths)

They’re part of healthy food webs and plant communities, and their caterpillars depend on a wide range of native trees and shrubs.

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Skippers (Family Hesperiidae)

Skippers

Skippers visit many flowers for nectar and can help move pollen between blooms while they feed.

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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 beetles (Family Cantharidae)

Soldier beetles

Many adults visit flowers and can move pollen between blooms, while also helping control some garden pests.

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Swallowtails (Family Papilionidae)

Swallowtails

Adult swallowtails visit many flowers for nectar and can help move pollen between blooms as they feed.

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Sweat bees (Family Halictidae)

Sweat bees

They help move pollen between flowers in gardens, parks, and natural areas, supporting seed and fruit production.

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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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