Bloom month

Plants that bloom in May

1139 garden plants from the BloomsEye library that are typically in flower during May. Plan for reliable color in May and keep your borders from going quiet.

Showing 121 to 180 of 1,139 plants

How this list is made

Derived from each plant's bloom months, as stored in the BloomsEye library, which was written with AI assistance. Of these 1,139 plants, 971 have been checked against outside sources (51 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.

Related guides

Lilac Varieties Compared Ground Cover Plants

Black Chokeberry

Aronia melanocarpa

Full sunZones 3–85 ftModerate

Nyssa sylvatica

Full sunZones 4–940 ftModerate

Black Hero Double Peony Tulip

Tulipa 'Black Hero'

Full sunZones 3–81.5 ftModerate

Listed as toxic to dogs and cats

Viola wittrockiana 'Clear Crystals Black'

Part sun8 inModerate8 in wide

Tulipa 'Black Parrot'

Full sunZones 3–81.5 ftModerate

Listed as toxic to dogs and cats

Blackfoot Daisy

Melampodium leucanthum

Full sunZones 4–1112 inLow

Viburnum prunifolium

Full sunZones 3–913 ftModerate

Blanc Double de Coubert Rose

Rosa 'Blanc Double de Coubert'

Full sunZones 4–95.5 ftModerate

Lamprocapnos spectabilis

Part shadeZones 3–92.5 ftModerate

Listed as toxic to dogs and cats

Blood Moon Rhododendron

Rhododendron 'Blood Moon'

Part shadeZones 5–87 ftModerate

Listed as toxic to dogs and cats

Bloom-A-Thon Pink Double

Rhododendron 'RLH1-2P8'

Part sunZones 6–94 ftModerate

Listed as toxic to dogs and cats

Bloombux Magenta Rhododendron

Rhododendron 'Microhirs9'

Full sunZones 5–92.5 ftModerate

Listed as toxic to dogs and cats

Bloomerang Ballet Reblooming Lilac

Syringa pubescens 'SMNSPH'

Full sunZones 3–74 ftModerate

Bloomerang Dark Purple Lilac

Syringa 'SMSJBP7'

Full sunZones 3–75 ftModerate

Bloomerang Purpink Reblooming Lilac

Syringa pubescens 'SMNSPTP'

Full sunZones 3–74 ftModerate

Bloomerang Purple

Syringa 'Bloomerang Purple'

Full sunZones 3–75 ftModerate

Bloomerang Showmound Lilac

Syringa pubescens 'SMNSPWF'

Full sunZones 3–72.5 ftModerate

Chaenostoma cordatum

Part sunZones 9–116 inModerate

Blue Blaze Viburnum

Viburnum dentatum 'Blubzam'

Full sunZones 3–85 ftModerate

Blue Canterbury Bells

Campanula medium

Full sunZones 4–102.5 ftModerate

Blue Fan Flower

Scaevola aemula

Full sunZones 10–118 inModerate

Freesia 'Blue Heaven'

Full sunZones 9–101.5 ftModerate

Full sunZones 5–104 ftModerate

Salvia × sylvestris 'Blauhügel'

Full sunZones 4–81.5 ftLow

Blue Ice Blue Star

Amsonia 'Blue Ice'

Full sunZones 4–91.5 ftModerate

Listed as toxic to dogs and cats

Baptisia australis

Full sunZones 3–93.5 ftModerate

Listed as toxic to cats

Consolida ajacis

Full sunZones 2–113 ftModerate

Listed as toxic to dogs and cats

Blue Maid Holly

Ilex × meserveae 'Mesid'

Full sunZones 5–714 ftModerate

Listed as toxic to dogs and cats

Salvia nemorosa 'Blue Marvel'

Full sunZones 4–91.5 ftLow

Blue Moon Wisteria

Wisteria macrostachya 'Blue Moon'

Full sunZones 3–920 ftModerate

Listed as toxic to dogs and cats

Blue Moon Woodland Phlox

Phlox divaricata 'Blue Moon'

Part shadeZones 4–812 inModerate

Blue Muffin Viburnum

Viburnum dentatum 'Christom'

Full sunZones 3–86 ftModerate

Blue Palo Verde

Parkinsonia florida

Full sunZones 8–1030 ftLow

Viola wittrockiana 'Blue'

Part sun8 inModerate8 in wide

Rhododendron 'Blue Peter'

Part shadeZones 5–85 ftModerate

Listed as toxic to dogs and cats

Full sun12 inModerate1.5 ft wide

Blue Prince Holly

Ilex × meserveae 'Blue Prince'

Full sunZones 4–710 ftModerate

Listed as toxic to dogs and cats

Blue Princess Holly

Ilex × meserveae 'Blue Princess'

Full sunZones 5–713 ftModerate

Listed as toxic to dogs and cats

Blue Shadow Fothergilla

Fothergilla × intermedia 'Blue Shadow'

Full sunZones 5–85 ftModerate

Tulipa 'Blue Spectacle'

Full sunZones 3–81.5 ftModerate

Listed as toxic to dogs and cats

Blue Waterfall Bellflower

Campanula poscharskyana 'Camgood'

Full sunZones 4–78 inModerate

Nepeta × faassenii 'Blue Wonder'

Full sunZones 3–81.5 ftLow

Blue Wood Sedge

Carex flaccosperma

Part shadeZones 5–88 inModerate

Blueblossom Ceanothus

Ceanothus thyrsiflorus

Full sunZones 7–1012 ftLow

Full sunZones 4–93 ftModerate

Listed as toxic to dogs and cats

Bobee Northern Bayberry

Myrica pensylvanica 'Bobzam'

Full sunZones 3–76 ftModerate

Rosa 'Meidelweis'

Full sunZones 5–93.5 ftModerate

Rosa 'Meidelweis'

Full sunZones 6–104 ftModerate

Rosa 'Meidomonac'

Full sunZones 4–93.5 ftModerate

Bordeaux Dwarf Yaupon Holly

Ilex vomitoria 'Condeaux'

Full sunZones 7–93 ftModerate

Listed as toxic to dogs and cats

Rosa 'Auscousin'

Full sunZones 5–104 ftModerate

Rhododendron 'Boule de Neige'

Part shadeZones 4–84 ftModerate

Listed as toxic to dogs and cats

Boulevard Edda Clematis

Clematis 'Evipo074'

Full sunZones 4–93.5 ftModerate

Listed as toxic to dogs and cats

Boursault Rhododendron

Rhododendron 'Catawbiense Boursault'

Part shadeZones 4–86 ftModerate

Listed as toxic to dogs and cats

Paeonia 'Bowl of Beauty'

Full sunZones 3–83 ftModerate

Listed as toxic to dogs and cats

Bowles' Golden Sedge

Carex elata 'Aurea'

Part shadeZones 5–82 ftModerate

Brandywine Viburnum

Viburnum nudum 'Bulk'

Full sunZones 5–95.5 ftModerate

Spiraea × vanhouttei

Full sunZones 3–86 ftModerate

Dianthus deltoides 'Brilliant'

Full sunZones 3–98 inLow

Listed as toxic to dogs and cats

Encelia farinosa

Full sunZones 7–93 ftLow

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