Bloom calendar

Plants for Zone 4 That Bloom in May

479 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 181 to 240 of 479 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 479 plants, 393 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.

Dutchman's Pipe
Aristolochia macrophylla
Part sunZones 4–824 ftModerate
Listed as toxic to dogs
Dwarf Crested Iris
Iris cristata
Part shadeZones 4–88 inModerate
Listed as toxic to dogs and cats
Dwarf Korean Lilac
Syringa meyeri 'Palibin'
Full sunZones 3–75 ftModerate
Early Bird
Nepeta 'Early Bird'
Full sunZones 3–81.5 ftLow
Earlybird Purple Blue Columbine
Aquilegia 'Pas1258487'
Part shadeZones 3–912 inModerate
Earlybird Purple White Columbine
Aquilegia 'Pas1258486'
Part shadeZones 3–912 inModerate
Earlybird Red and White Columbine
Aquilegia 'Pas1258484'
Part shadeZones 4–912 inModerate
East Friesland
Salvia nemorosa 'Ostfriesland'
Full sunZones 4–81.5 ftLow
Eastern Bluestar
Amsonia tabernaemontana
Full sunZones 3–92.5 ftModerate
Listed as toxic to dogs and cats
Eastern Red Columbine
Aquilegia canadensis
Part shadeZones 3–82 ftModerate
Eastern Star Sedge
Carex radiata
Part shadeZones 4–81.5 ftModerate
Easy Elegance Kashmir Rose
Rosa 'Baimir'
Full sunZones 4–93.5 ftModerate
Easy Elegance My Girl Shrub Rose
Rosa 'Baigirl'
Full sunZones 4–94 ftModerate
Easy Elegance Sunrise Sunset Rose
Rosa 'Baiset'
Full sunZones 4–92.5 ftModerate
Electric Lights Double Pink Azalea
Rhododendron 'Umnaz 493'
Part shadeZones 4–76 ftModerate
Listed as toxic to dogs and cats
Electric Lights Red Azalea
Rhododendron 'Umnaz633'
Part sunZones 4–74 ftModerate
Listed as toxic to dogs and cats
Electric Love Weigela
Weigela florida 'Zr1'
Full sunZones 4–71.5 ftModerate
Elegans Hosta
Hosta sieboldiana 'Elegans'
Part shadeZones 3–83 ftModerate
Listed as toxic to dogs and cats
Emerald Blue
Phlox subulata 'Emerald Blue'
Full sunZones 3–86 inLow
Emerald Pink
Phlox subulata 'Emerald Pink'
Full sunZones 3–96 inLow
English Daisy
Bellis perennis
Full sunZones 4–86 inModerate
English Roseum
Rhododendron 'English Roseum'
Part shadeZones 4–86 ftModerate
Listed as toxic to dogs and cats
European Beech
Fagus sylvatica
Full sunZones 4–755 ftModerate
Listed as toxic to dogs and cats
European Snowball
Viburnum opulus 'Roseum'
Full sunZones 3–811 ftModerate
Eustacia Vye
Rosa 'Ausegdon'
Full sunZones 4–114 ftModerate
Eye Candy Moss Phlox
Phlox subulata 'Eye Candy'
Full sunZones 3–94 inModerate
Eye Shadow Moss Phlox
Phlox subulata 'Eye Shadow'
Full sunZones 2–94 inLow
False Indigo
Baptisia
Full sunZones 3–93.5 ftLow
Listed as toxic to cats
False Solomon's Seal
Maianthemum racemosum
Part shadeZones 3–82.5 ftModerate
Feathered Friends Fancy Finch Ajuga
Ajuga 'Fanfin'
Part shadeZones 4–94 inModerate
Feathered Friends Fierce Falcon Ajuga
Ajuga 'Fiefal'
Part shadeZones 4–98 inModerate
Feathered Friends Noble Nightingale Ajuga
Ajuga 'Nobnig'
Part shadeZones 4–94 inModerate
Feathered Friends Parrot Paradise Ajuga
Ajuga 'Parpar'
Part shadeZones 4–98 inModerate
Festiva Maxima
Paeonia 'Festiva Maxima'
Full sunZones 3–83 ftModerate
Listed as toxic to dogs and cats
Firecracker Penstemon
Penstemon eatonii
Full sunZones 4–72.5 ftLow
Firewitch
Dianthus gratianopolitanus 'Firewitch'
Full sunZones 3–98 inLow
Listed as toxic to dogs and cats
Flaming Parrot
Tulipa 'Flaming Parrot'
Full sunZones 3–82 ftModerate
Listed as toxic to dogs and cats
Flowering Crabapple
Malus
Full sunZones 4–820 ftModerate
Listed as toxic to dogs and cats
Foam Flower
Tiarella
Part shadeZones 3–812 inModerate
Foamy Bells
Heucherella
Part shadeZones 4–912 inModerate
Foxglove
Digitalis
Part shadeZones 4–84 ftModerate
Listed as toxic to dogs and cats
Foxglove Beardtongue
Penstemon digitalis
Full sunZones 3–84 ftModerate
Frosty Fire
Dianthus 'Frosty Fire'
Full sunZones 3–910 inLow
Listed as toxic to dogs and cats
Fruit Punch Classic Coral
Dianthus 'Classic Coral'
Full sunZones 4–98 inModerate
Listed as toxic to dogs and cats
Gallery Blue
Lupinus 'Gallery Blue'
Full sunZones 4–81.5 ftModerate
Listed as toxic to dogs and cats
Gallery Red
Lupinus 'Gallery Red'
Full sunZones 4–81.5 ftModerate
Listed as toxic to dogs and cats
Gallery White
Lupinus 'Gallery White'
Full sunZones 4–81.5 ftModerate
Listed as toxic to dogs and cats
Gardenia
Paeonia 'Gardenia'
Full sunZones 3–83 ftModerate
Listed as toxic to dogs and cats
Giant Allium
Allium giganteum
Full sunZones 4–83 ftLow
Listed as toxic to dogs and cats
Gladiator
Allium 'Gladiator'
Full sunZones 4–83.5 ftLow
Listed as toxic to dogs and cats
Globeflower
Trollius
Part sunZones 3–72 ftHigh
Gold Heart
Lamprocapnos spectabilis 'Gold Heart'
Part shadeZones 3–92.5 ftModerate
Listed as toxic to dogs and cats
Golden Alexanders
Zizia aurea
Full sunZones 3–82 ftModerate
Golden Apeldoorn
Tulipa 'Golden Apeldoorn'
Full sunZones 3–82 ftModerate
Listed as toxic to dogs and cats
Golden Columbine
Aquilegia chrysantha
Part shadeZones 3–82.5 ftModerate
Golden Currant
Ribes aureum
Part shadeZones 3–76 ftModerate
Golden Garlic
Allium moly
Full sunZones 3–910 inLow
Listed as toxic to dogs and cats
Golden Lights
Rhododendron 'Golden Lights'
Part shadeZones 4–75 ftModerate
Listed as toxic to dogs and cats
Golden Mock Orange
Philadelphus coronarius 'Aureus'
Full sunZones 4–86.5 ftModerate
Golden Ragwort
Packera aurea
Part shadeZones 3–81.5 ftModerate

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