Quick answer: 172 native New Jersey plants have a recorded bloom range that includes May.
172 species
- Adam's needle Yucca filamentosa · 21 states
- Allegheny chinquapin Castanea pumila · 21 states
- Allegheny serviceberry Amelanchier laevis · 17 states
- American alumroot Heuchera americana · 20 states
- American basswood Tilia americana · 37 states
- American beech Fagus grandifolia · 31 states
- American bittersweet Celastrus scandens · 33 states
- American bladdernut Staphylea trifolia · 28 states
- American cranberry Vaccinium macrocarpon · 15 states
- American hazelnut Corylus americana · 34 states
- American holly Ilex opaca · 28 states
- American hornbeam Carpinus caroliniana · 33 states
- American mountain ash Sorbus americana · 18 states
- American plum Prunus americana · 37 states
- American strawberry bush Euonymus americanus · 23 states
- Appalachian gooseberry Ribes rotundifolium · 11 states
- Atlantic white cedar Chamaecyparis thyoides · 17 states
- Balsam poplar Populus balsamifera · 8 states
- Beach plum Prunus maritima · 8 states
- Bear oak Quercus ilicifolia · 13 states
- Bearberry Arctostaphylos uva-ursi · 34 states
- Bebb willow Salix bebbiana · 6 states
- Birdfoot violet Viola pedata · 34 states
- Black cherry Prunus serotina · 35 states
- Black huckleberry Gaylussacia baccata · 25 states
- Black oak Quercus velutina · 30 states
- Black tupelo Nyssa sylvatica · 31 states
- Black walnut Juglans nigra · 33 states
- Black willow Salix nigra · 24 states
- Blackjack oak Quercus marilandica · 24 states
- Blue wild indigo Baptisia australis · 23 states
- Bluebead Clintonia borealis · 14 states
- Bog Labrador tea Ledum groenlandicum · 11 states
- Bog birch Betula pumila · 2 states
- Bog laurel Kalmia polifolia · 13 states
- Box huckleberry Gaylussacia brachycera · 8 states
- Bristly locust Robinia hispida · 10 states
- Broadleaf cattail Typha latifolia · 39 states
- Bunchberry Cornus canadensis · 18 states
- Bur oak Quercus macrocarpa · 33 states
- Butterflyweed Asclepias tuberosa · 40 states
- Butternut Juglans cinerea · 26 states
- Canada anemone Anemone canadensis · 29 states
- Canada wild rye Elymus canadensis · 37 states
- Canada yew Taxus canadensis · 18 states
- Canadian serviceberry Amelanchier canadensis · 21 states
- Canadian wild ginger Asarum canadense · 30 states
- Candle anemone (thimbleweed) Anemone cylindrica · 12 states
- Cardinal flower Lobelia cardinalis · 41 states
- Carolina springbeauty Claytonia caroliniana · 20 states
- Chinkapin oak Quercus muehlenbergii · 30 states
- Chokecherry Prunus virginiana · 44 states
- Cinnamon fern Osmunda cinnamomea · 32 states
- Climbing prairie rose Rosa setigera · 27 states
- Cockspur hawthorn Crataegus crus-galli · 25 states
- Common blue violet Viola sororia · 37 states
- Common elderberry Sambucus nigra ssp. canadensis · 36 states
- Common hackberry Celtis occidentalis · 33 states
- Common hoptree Ptelea trifoliata · 28 states
- Common leopardbane Arnica acaulis · 10 states
- Common ninebark Physocarpus opulifolius · 30 states
- Common persimmon Diospyros virginiana · 26 states
- Common selfheal Prunella vulgaris · 25 states
- Common winterberry Ilex verticillata · 32 states
- Common yarrow Achillea millefolium · 47 states
- Coralberry Symphoricarpos orbiculatus · 30 states
- Creeping phlox Phlox subulata · 23 states
- Creeping snowberry Gaultheria hispidula · 12 states
- Deerberry Vaccinium stamineum · 22 states
- Downy hawthorn Crataegus mollis · 24 states
- Downy serviceberry Amelanchier arborea · 37 states
- Dutchman's breeches Dicentra cucullaria · 32 states
- Early azalea Rhododendron prinophyllum · 17 states
- Eastern bluestar Amsonia tabernaemontana · 18 states
- Eastern hop-hornbeam Ostrya virginiana · 37 states
- Eastern leatherwood Dirca palustris · 25 states
- Eastern red cedar Juniperus virginiana · 37 states
- Eastern red columbine Aquilegia canadensis · 36 states
- Eastern redbud Cercis canadensis · 32 states
- Eastern smooth beardtongue Penstemon laevigatus · 15 states
- Eastern white pine Pinus strobus · 28 states
- Fire pink Silene virginica · 26 states
- Flowering dogwood Cornus florida · 31 states
- Foxglove beardtongue Penstemon digitalis · 35 states
- Fragrant sumac Rhus aromatica · 30 states
- Golden alexanders Zizia aurea · 35 states
- Gray alder Alnus incana · 26 states
- Gray dogwood Cornus racemosa · 19 states
- Grayhead coneflower Ratibida pinnata · 26 states
- Green ash Fraxinus pennsylvanica · 43 states
- Heart-leaved meadow parsnip Zizia aptera · 30 states
- Heartleaf foamflower Tiarella cordifolia · 18 states
- Highbush blueberry Vaccinium corymbosum · 25 states
- Highbush cranberry Viburnum opulus var. americanum · 22 states
- Hobblebush Viburnum lantanoides · 17 states
- Honey locust Gleditsia triacanthos · 13 states
- Indigo bush Amorpha fruticosa · 37 states
- Jack-in-the-pulpit Arisaema triphyllum · 35 states
- Jacob's ladder Polemonium reptans · 31 states
- Lanceleaf coreopsis Coreopsis lanceolata · 35 states
- Largeflower tickseed Coreopsis grandiflora · 25 states
- Low prickly pear Opuntia humifusa · 31 states
- Lowbush blueberry Vaccinium angustifolium · 22 states
- Lyreleaf sage Salvia lyrata · 22 states
- Mapleleaf viburnum Viburnum acerifolium · 27 states
- Marsh marigold Caltha palustris · 28 states
- Mayapple Podophyllum peltatum · 35 states
- Mountain maple Acer spicatum · 18 states
- Nannyberry Viburnum lentago · 25 states
- Narrowleaf blue-eyed grass Sisyrinchium angustifolium · 21 states
- New Jersey tea Ceanothus americanus · 35 states
- Northern blue flag Iris versicolor · 10 states
- Northern red oak Quercus rubra · 33 states
- Northern spicebush Lindera benzoin · 31 states
- Pagoda dogwood Cornus alternifolia · 30 states
- Partridgeberry Mitchella repens · 31 states
- Pawpaw Asimina triloba · 29 states
- Pin cherry Prunus pensylvanica · 20 states
- Pin oak Quercus palustris · 27 states
- Post oak Quercus stellata · 28 states
- Purple clematis Clematis occidentalis var. occidentalis · 15 states
- Purple milkweed Asclepias purpurascens · 20 states
- Quaking aspen Populus tremuloides · 39 states
- Red baneberry Actaea rubra · 29 states
- Red chokeberry Aronia arbutifolia · 22 states
- Red pine Pinus resinosa · 13 states
- Red-osier dogwood Cornus sericea · 36 states
- Riverbank grape Vitis riparia · 20 states
- Royal fern Osmunda regalis var. spectabilis · 30 states
- Sand cherry Prunus pumila · 5 states
- Sassafras Sassafras albidum · 22 states
- Scarlet beebalm Monarda didyma · 25 states
- Scarlet oak Quercus coccinea · 28 states
- Shagbark hickory Carya ovata · 34 states
- Shingle oak Quercus imbricaria · 18 states
- Smooth Solomon's seal Polygonatum biflorum · 34 states
- Smooth hydrangea Hydrangea arborescens · 23 states
- Smooth sumac Rhus glabra · 42 states
- Southern arrowwood Viburnum dentatum · 28 states
- Southern red oak Quercus falcata · 23 states
- Spotted beebalm Monarda punctata · 29 states
- Starry false Solomon's seal Maianthemum stellatum · 19 states
- Striped maple Acer pensylvanicum · 18 states
- Sugar maple Acer saccharum · 34 states
- Sundial lupine Lupinus perennis · 28 states
- Swamp azalea Rhododendron viscosum · 15 states
- Swamp rose Rosa palustris · 27 states
- Swamp white oak Quercus bicolor · 23 states
- Sweet birch Betula lenta · 21 states
- Sweet crabapple Malus coronaria · 20 states
- Sweet-fern Comptonia peregrina · 21 states
- Sweetbay magnolia Magnolia virginiana · 17 states
- Sweetgum Liquidambar styraciflua · 26 states
- Trailing arbutus Epigaea repens · 24 states
- Tulip tree Liriodendron tulipifera · 27 states
- Twinleaf Jeffersonia diphylla · 15 states
- Twoleaf miterwort Mitella diphylla · 25 states
- Virginia bluebells Mertensia virginica · 23 states
- Virginia creeper Parthenocissus quinquefolia · 40 states
- Virginia spiderwort Tradescantia virginiana · 24 states
- Virginia springbeauty Claytonia virginica · 28 states
- Virginia strawberry Fragaria virginiana · 30 states
- Virginia sweetspire Itea virginica · 19 states
- White ash Fraxinus americana · 35 states
- White baneberry Actaea pachypoda · 33 states
- White fringetree Chionanthus virginicus · 21 states
- White oak Quercus alba · 33 states
- Whorled milkweed Asclepias verticillata · 30 states
- Wild blue phlox Phlox divaricata · 36 states
- Wild geranium Geranium maculatum · 33 states
- Willow oak Quercus phellos · 23 states
- Yellow birch Betula alleghaniensis · 21 states
May in a New Jersey native garden
May is New Jersey's peak bloom month: 172 of the state's 287 native plants in this directory flower in May, more than in any other month.
47 start blooming in May, including American bittersweet, American cranberry and American strawberry bush. 52 finish in May, including American beech, American hornbeam and Appalachian gooseberry, so this is the last chance to see them in flower.
108 of them grow in full or partial sun and 129 tolerate shade, so there are options for open beds and woodland edges alike. Sizes run from low plants like American alumroot and Birdfoot violet to trees such as Allegheny chinquapin and Allegheny serviceberry. For wildlife, 127 support pollinators, 107 provide food or cover for birds and 68 are caterpillar host plants.
132 of the 172 have a seed or plant listing we verified as the wild species. Be careful buying American alumroot, Common yarrow, Creeping phlox: common listings for these are often a bred variety or a different species.
Good places to start
Verified wild-species listings that take sun and are widely native, so they are forgiving first plants.
- Chokecherry Prunus virginiana · Sun, Part Shade, Shade · blooms Apr-Jul
- Green ash Fraxinus pennsylvanica · Sun, Part Shade, Shade · blooms Apr-Jun
- Smooth sumac Rhus glabra · Sun, Part Shade, Shade · blooms May-Aug