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Fire Island exists as an intentionally preserved East Coast maritime forest, a living barrier island system shaped by wind, salt, storm, succession, and deep evolutionary time.
The island itself is geologically young. Fire Island and the south-shore barrier system began forming about 8,000 years ago as sea-level rise slowed and waves and currents reworked coastal sediments. [1] Yet the relationships that live here are ancient. The grasses, shrubs, trees, fungi, insects, and birds that assemble this forest descend from lineages forged through millions of years of coevolution along the Atlantic coast.
Many areas of this island, particularly within federally protected lands of the National Park Service and the Fire Island National Seashore, hold rare beachside ecologies shaped by that long continuity. Federal law establishing the Seashore emphasizes conserving and preserving relatively unspoiled beaches, dunes, and other natural features for future generations, and directs the Seashore to be administered with the primary aim of conserving natural resources. [2]
Our work follows that structure.
The maritime forest assembled itself across distinct yet interwoven zones. Foredunes and primary dunes are held by American beachgrass, whose roots descend widely through sand drawn from the sea. Dune scrub gathers behind them, shaped low by salt spray and wind. Bayberry, beach plum, serviceberry, chokeberry, and young red cedar form thickets whose height reflects exposure.
Further inland, where dunes buffer wind and salt, interior maritime forest develops. Pitch pine rises. American holly deepens shade. Oaks extend branching canopy. Red maple and black tupelo anchor lower pockets where moisture lingers. Swales and interdunal depressions hold seasonal wetness. At the island margins, marsh ecotones meet tidal water, supporting wetland assemblages that have become increasingly rare along the Atlantic coast.
Each parcel in the Pines and Cherry Grove occupies some expression of this forest mosaic. Exposure to wind, soil depth, shade, fencing, deer pressure, and proximity to dune or swale all influence what thrives.
To understand this native ecology is to fall in love with it. Its beauty emerges from interrelated sustenance and resilience. The red fruit of holly against winter leaves. The silver underside of bayberry in late light. The sculptural lean of pitch pine shaped by salt wind. The glow of goldenrod in autumn dunes. These forms reflect adaptation and continuity.
What has formed here through currents and drift has experienced extraordinary change in the last century. Human settlement has reshaped canopy composition, soil structure, and understory density with unusual speed. At times we have forgotten our role as participants within the system.
Gay Gardens remembers.
We see ourselves as stewards within an ecology whose zones are formed by exposure, succession, fungal partnership, and layered growth. We treat each property as part of a larger forest system. We plant in relationship to dune, scrub, canopy, and swale. We consider how roots overlap, how fungal guilds connect, how deer pressure alters understory, how fencing can create refuge, how leaf litter builds soil, how shade and wind sculpt form.
From dune grass to holly canopy, from arbuscular fungal networks in open sand to ectomycorrhizal partnerships beneath oak and pine, this island holds through connection. [3]
We garden to connect.
DUNE LIGHT AND ARBUSCULAR FOUNDATIONS
At the ocean edge, American beachgrass (Ammophila breviligulata) lifts in bright arcs across open sand. In nutrient-poor dune systems, it commonly partners with arbuscular mycorrhizal fungi (AMF), which form microscopic arbuscules inside root cells, exchanging mineral nutrients for carbon produced through photosynthesis. [4]
On Atlantic dunes, research has shown that unvegetated sands can lack detectable AMF propagules, while beachgrass plantings can develop AMF propagules and increasing community complexity as succession proceeds. [5] Over time, hyphal networks extend outward through sand, expanding plant access to water and nutrients and supporting soil structure.
AMF hyphae help bind soil particles, and glomalin-related soil proteins are strongly associated with aggregate stability and soil cohesion across many systems. [6] What looks loose gains structure.
Beach pea (Lathyrus japonicus) spreads nitrogen-fixing roots into early dune systems. Seaside goldenrod (Solidago sempervirens) carries nectar into late summer winds. Little bluestem (Schizachyrium scoparium) and switchgrass (Panicum virgatum) send fibrous roots downward, strengthening dunes in depth as well as at the surface.
Open sand along the strand belongs to wind and tide. Within vegetated dune systems, continuous cover supports structure. Root overlap deepens fungal exchange. Layered growth moderates erosion.
The dune is luminous and structural at once.
SHRUB THICKET AND THE MARITIME BERRY WEB
As salt spray softens and wind slows, dune scrub gathers.
Bayberry (Morella pensylvanica) shimmers silver and can enrich sandy soils through nitrogen-fixing symbiosis with actinorhizal microbes. [7] Beach plum (Prunus maritima) flowers in spring and ripens into deep purple fruit. Serviceberries (Amelanchier spp.), chokeberries (Aronia spp.), viburnums, winterberry (Ilex verticillata), inkberry (Ilex glabra), American holly (Ilex opaca), black cherry (Prunus serotina), and native roses extend fruiting across seasons.
Native grapes (Vitis labrusca) and Virginia creeper (Parthenocissus quinquefolia) climb into sunlight, sustaining migrating flocks. Blueberries and huckleberries (Ericaceae) root into acidic pockets supported by ericoid mycorrhizal fungi specialized for heath-family plants. [8]
Poison ivy (Toxicodendron radicans), when growing away from paths, rises readily in disturbed soil and carries pale winter berries that support birds through lean months.
This layered fruiting system sustains birds from early summer through late winter.
Browsing pressure shapes the understory. Fire Island National Seashore documents dense deer populations and treats deer browsing as a driver of forest habitat change, alongside tools like fencing and vegetation monitoring to support forest recovery. [9] Thoughtful fencing can create micro-refugia. Within those sheltered pockets, shrubs regain structure, perennials establish, and canopy recruits advance beyond browse height.
PINE, OAK, AND THE CANOPY ENGINE
Further inland, soil deepens and shade gathers.
Pitch pine (Pinus rigida) rises resilient against wind and salt. Oaks extend branching crowns. In swales and lower areas, black tupelo (Nyssa sylvatica) and red maple (Acer rubrum) anchor moister soils.
Below ground, pines and oaks characteristically form ectomycorrhizal partnerships, where fungal sheaths surround root tips and extend outward as extensive networks that support nutrient and water dynamics. [10] These ectomycorrhizal systems operate alongside arbuscular networks among many shrubs and herbaceous plants, forming layered fungal guilds within the same soil profile. [3]
Red maple and black tupelo are commonly associated with arbuscular mycorrhizae, and arbuscular colonization is widely documented in red maple roots. [11]
Blueberries and huckleberries rely on ericoid fungi adapted to acidic, nutrient-poor soils. [8]
Multiple fungal systems operate simultaneously, aligned with particular plant groups. Together they shape nutrient cycling, carbon flow, and long-term soil development.
MEADOW, SWALE, AND POLLINATOR LAYER
In openings and along moisture gradients, herbaceous communities expand.
Milkweeds (Asclepias spp.) support monarch butterflies and other specialist insects. Goldenrods (Solidago spp.), asters (Symphyotrichum spp.), New York ironweed (Vernonia noveboracensis), Joe-Pye weed (Eutrochium spp.), boneset (Eupatorium perfoliatum), and native sunflowers extend nectar and pollen from midsummer into fall migration.
Across systems, pollinator abundance and interaction richness respond strongly to floral resources and plant community composition, and habitat plantings can measurably increase pollinator visitation and diversity when flowers are present across the season. [12]
SOIL STEWARDSHIP ON A BARRIER ISLAND
Barrier island soils are lean by nature. In Fire Island sea sands, the mineral nutrient capital is extremely low compared to many other soils, and long-term fertility depends heavily on organic matter accumulation and tight cycling. [13] Their stability depends on living cover, root density, and fungal exchange.
Arbuscular mycorrhizae are central to phosphorus uptake in many low-fertility systems. When soils receive elevated levels of readily available phosphorus, plants often reduce investment in AMF partnerships and colonization can decline. [4] In systems where nutrient cycling is delicate, maintaining that mutual dependence supports long-term resilience.
Gay Gardens avoids routine synthetic fertilization. We prioritize soil cover, leaf litter retention, compost integration where appropriate, and species selection aligned with existing soil chemistry. Nutrient additions, when necessary, remain modest and targeted.
Layered planting strengthens underground networks. Grasses, shrubs, and canopy trees selected together create overlapping root systems that sustain fungal density. Native plant communities share compatible mycorrhizal guilds, allowing nutrient and carbon exchange to circulate across species boundaries.
Soil health here is inseparable from plant community coherence.
THE GARDEN PATH
Gay Gardens loves a path.
A private garden allows dense participants of place to gather, blossoms lifting toward light, grasses moving in wind, berries glowing in fall, butterflies drifting from milkweed to goldenrod while birds move through thicket edges.
We carve paths to invite presence. A gardener’s path slows the body and reveals the layers, bluestem catching evening light, bayberry releasing scent after rain, holly bright in winter shade.
Continuity strengthens the island. Root overlap. Leaf litter feeding soil organisms. Layered vegetation stabilizing sand.
A path can wind through density. It can open and return. It can follow the natural slope of dune and forest floor. Cohesion remains intact.
In a maritime forest shaped by storm and tide, resilience develops through relational density. Where roots interlace and fungal threads extend, sand gains structure. Where shrubs and flowers gather, pollinators expand and soil deepens.
The maritime forest continues its story.
We help it unfold.
FOOTNOTES
[1] U.S. Geological Survey. Pendleton, E.A., Williams, S.J., Thieler, E.R. Coastal Vulnerability Assessment of Fire Island National Seashore to Sea-Level Rise (Open-File Report 03-439), PDF:
https://pubs.usgs.gov/of/2003/of03-439/images/pdf/FIIS-printable.pdf
[2] Fire Island National Seashore Act purposes (16 U.S.C. § 459e), GovInfo (codified text), PDF:
https://www.govinfo.gov/link/uscode/16/459e
Administration aim to conserve natural resources (16 U.S.C. § 459e-6), Cornell Law School:
https://www.law.cornell.edu/uscode/text/16/459e-6
[3] Mycorrhizal symbioses, functional types, and ecosystem roles (open access review):
https://pmc.ncbi.nlm.nih.gov/articles/PMC8131788/
[4] Arbuscular mycorrhizae, arbuscules, nutrient exchange, and phosphorus effects (open access):
https://pmc.ncbi.nlm.nih.gov/articles/PMC3810610/
[5] Koske, R.E. & Gemma, J.N. (1997). Mycorrhizae and succession in plantings of beachgrass in sand dunes, PDF:
https://mycoroots.com/wp-content/uploads/2016/08/koske97b.pdf
[6] Glomalin-related soil protein and soil aggregation (Frontiers in Soil Science 2024), PDF:
[7] USDA NRCS Plant Guide, Northern bayberry (Morella pensylvanica), includes nitrogen-fixing notes, PDF:
https://plants.usda.gov/DocumentLibrary/plantguide/pdf/pg_mope6.pdf
[8] Ericoid mycorrhizae overview (open access review):
https://pmc.ncbi.nlm.nih.gov/articles/PMC7548138/
[9] National Park Service. Fire Island National Seashore deer management plan overview (includes vegetation impacts and tools such as fencing and monitoring):
https://www.nps.gov/fiis/learn/management/deer-management-plan.htm
[10] Oak ectomycorrhizal associations documented in forest research (USDA Forest Service), PDF:
https://www.srs.fs.usda.gov/pubs/ja/ja_walker013.pdf
Ectomycorrhizal fungi overview (open access):
https://pmc.ncbi.nlm.nih.gov/articles/PMC4161172/
[11] Arbuscular mycorrhizae documented in red maple roots (Journal of Arboriculture), PDF:
https://joa.isa-arbor.com/request.asp?ArticleID=212&JournalID=1&Type=2
Tree species mycorrhizal type comparisons including AM-associated hardwoods (open access), PDF:
https://openscholarship.wustl.edu/cgi/viewcontent.cgi?article=1117&context=bio_facpubs
[12] Habitat plantings and pollinator response (open access):
https://pmc.ncbi.nlm.nih.gov/articles/PMC9237205/
Meta-analysis context on anthropogenic effects on plant-pollinator networks (open access):
https://pmc.ncbi.nlm.nih.gov/articles/PMC11214738/
[13] Fire Island sea sands and low mineral nutrient capital (NPS Scientific Monograph 7, Chapter 10):