Bloom calendar

Plants for Zone 4 That Bloom in May

528 plants in the BloomsEye library that are hardy in USDA hardiness zone 4 and typically flower in May, such as False Indigo, Peony and Tulip. Each entry lists its bloom times, hardiness zones, and sun needs.

Showing 121 to 180 of 528 plants

How this list is made

Derived from each plant's bloom months and USDA hardiness zones, as stored in the BloomsEye library, which was written with AI assistance. Of these 528 plants, 481 have been checked against outside sources (29 fully verified); the rest have not been checked yet, and each plant's own page says which. The cards are AI-generated illustrations. Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.

Cat's Eye Dwarf Bearded Iris
Iris 'Cat's Eye'
Full sunZones 4–91.5 ftModerate
Listed as toxic to dogs and cats
Cat's Pajamas Catmint
Nepeta 'Cat's Pajamas'
Full sunZones 3–812 inLow
Catawba Rhododendron
Rhododendron catawbiense
Part shadeZones 4–88 ftModerate
Listed as toxic to dogs and cats
Catmint
Nepeta
Full sunZones 3–81.5 ftLow
Celandine Poppy
Chelidonium diphyllum
Part shadeZones 4–91.5 ftModerate
Chandelier
Lupinus 'Chandelier'
Full sunZones 4–83 ftModerate
Listed as toxic to dogs and cats
Chantilly Lace Goatsbeard
Aruncus 'Chantilly Lace'
Part shadeZones 3–72.5 ftModerate
Charles Joly
Syringa vulgaris 'Charles Joly'
Full sunZones 3–710 ftModerate
Checkered Lily
Fritillaria meleagris
Part sunZones 3–812 inModerate
Checkered Lily Alba
Fritillaria meleagris 'Alba'
Part sunZones 3–812 inModerate
Cheerfulness
Narcissus 'Cheerfulness'
Full sunZones 3–81.5 ftModerate
Listed as toxic to dogs and cats
Cherries Jubilee
Baptisia 'Cherries Jubilee'
Full sunZones 4–83 ftLow
Listed as toxic to cats
Chick Charms Cosmic Candy Hens & Chicks
Sempervivum 'Urmina'
Full sunZones 4–84 inLow
Chives
Allium schoenoprasum
Full sunZones 4–812 inModerate
Listed as toxic to dogs and cats
Chocolate Flower
Berlandiera lyrata
Full sunZones 4–101.5 ftLow
Chokecherry
Prunus virginiana
Full sunZones 2–625 ftModerate
Listed as toxic to dogs and cats
Clematis
Clematis
Full sunZones 4–910 ftModerate
Listed as toxic to dogs and cats
Color Spires Back to the Fuchsia Salvia
Salvia 'Back to the Fuchsia'
Full sunZones 3–82 ftModerate
Color Spires Crystal Blue Salvia
Salvia × sylvestris 'Crystal Blue'
Full sunZones 3–81.5 ftModerate
Color Spires Pink Dawn Salvia
Salvia 'Pink Dawn'
Full sunZones 3–81.5 ftModerate
Columbine
Aquilegia
Part shadeZones 3–82 ftModerate
Common Blanketflower
Gaillardia aristata
Full sunZones 3–82 ftModerate
Common Comfrey
Symphytum officinale
Full sunZones 4–82.5 ftModerate
Listed as toxic to dogs and cats
Common Foxglove
Digitalis purpurea
Part shadeZones 4–84.5 ftModerate
Listed as toxic to dogs and cats
Common Hackberry
Celtis occidentalis
Full sunZones 2–957 ftModerate
Common Persimmon
Diospyros virginiana
Full sunZones 4–935 ftModerate
Coppertina
Physocarpus opulifolius 'Mindia'
Full sunZones 3–78 ftModerate
Cora Louise Itoh Peony
Paeonia 'Cora Louise'
Full sunZones 4–82.5 ftModerate
Listed as toxic to dogs and cats
Coral Charm
Paeonia 'Coral Charm'
Full sunZones 3–83.5 ftModerate
Listed as toxic to dogs and cats
Coral Honeysuckle
Lonicera sempervirens
Full sunZones 4–915 ftModerate
Coral Sunset
Paeonia 'Coral Sunset'
Full sunZones 3–83 ftModerate
Listed as toxic to dogs and cats
Cranberry Cotoneaster
Cotoneaster apiculatus
Full sunZones 4–72.5 ftModerate
Listed as toxic to dogs and cats
Crater Lake Blue
Veronica austriaca ssp. teucrium 'Crater Lake Blue'
Full sunZones 3–88 inModerate
Creek Sedge
Carex amphibola
Part shadeZones 3–91.5 ftModerate
Creeping Jacob's Ladder
Polemonium reptans
Part shadeZones 3–81.5 ftModerate
Creeping Phlox
Phlox subulata
Full sunZones 3–96 inLow
Cucumbertree Magnolia
Magnolia acuminata
Full sunZones 4–865 ftModerate
Cunningham's White
Rhododendron 'Cunningham's White'
Part shadeZones 4–85 ftModerate
Listed as toxic to dogs and cats
Cupani
Lathyrus odoratus 'Cupani'
Full sunZones 2–116 ftModerate
Listed as toxic to dogs and cats
Cutleaf Stephanandra
Neillia incisa 'Crispa'
Full sunZones 4–72.5 ftModerate
Czechmark Trilogy
Weigela 'Czechmark Trilogy'
Full sunZones 4–85 ftModerate
Dalmatian Peach
Digitalis purpurea 'Dalmatian Peach'
Part shadeZones 4–82.5 ftModerate
Listed as toxic to dogs and cats
Dalmatian Purple
Digitalis purpurea 'Dalmatian Purple'
Part shadeZones 4–82.5 ftModerate
Listed as toxic to dogs and cats
Dandy Man Purple Rhododendron
Rhododendron 'LavJ2011'
Part shadeZones 4–97 ftModerate
Listed as toxic to dogs and cats
Dark Dancer
Trifolium repens 'Atropurpureum'
Full sunZones 4–94 inModerate
Dead Nettle
Lamium maculatum
Part shadeZones 3–88 inModerate
Decadence Blueberry Sundae False Indigo
Baptisia 'Blueberry Sundae'
Full sunZones 4–93 ftLow
Listed as toxic to cats
Decadence Dark Chocolate False Indigo
Baptisia 'Dark Chocolate'
Full sunZones 4–93.5 ftModerate
Listed as toxic to cats
Decadence Deluxe Pink Truffles False Indigo
Baptisia 'Pink Truffles'
Full sunZones 4–94.5 ftLow
Listed as toxic to cats
Decadence Lemon Meringue False Indigo
Baptisia 'Lemon Meringue'
Full sunZones 4–83 ftModerate
Listed as toxic to cats
Decadence Sparkling Sapphires False Indigo
Baptisia 'Sparkling Sapphires'
Full sunZones 4–92.5 ftModerate
Listed as toxic to cats
Decadence Vanilla Cream False Indigo
Baptisia 'Vanilla Cream'
Full sunZones 4–92.5 ftModerate
Listed as toxic to cats
Diabolo
Physocarpus opulifolius 'Monlo'
Full sunZones 3–78 ftModerate
Diamantina Clematis
Clematis 'Evipo039'
Full sunZones 4–97 ftModerate
Listed as toxic to dogs and cats
Dianthus
Dianthus
Full sunZones 3–912 inLow
Listed as toxic to dogs and cats
Do Tell
Paeonia 'Do Tell'
Full sunZones 3–83 ftModerate
Listed as toxic to dogs and cats
Doctor Ruppel
Clematis 'Doctor Ruppel'
Part shadeZones 4–910 ftModerate
Listed as toxic to dogs and cats
Dolce Apple Twist Coral Bells
Heuchera 'Apple Twist'
Part shadeZones 4–91.5 ftModerate
Dolce Silver Gumdrop Coral Bells
Heuchera 'Silver Gumdrop'
Part shadeZones 4–92 ftModerate
Doll's Eyes
Actaea pachypoda
Part shadeZones 3–82 ftModerate
Listed as toxic to dogs and cats

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