Wildflowers Blooming in Utah in May (50 Species)

50 wildflowers were recorded blooming in Utah in May in our iNaturalist sample; 16 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.

Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Top wildflowers in May

Sego Lily200 obs.

Arrowleaf Balsamroot127 obs.

Greenleaf Manzanita107 obs.

Annual Honesty105 obs.

Hooker's onion93 obs.

Glacier Lily88 obs.

Creeping Mahonia83 obs.

Winding Mariposa Lily82 obs.

Fendler's Sandmat79 obs.

Upland Larkspur74 obs.

Longhorn Steer's-Head68 obs.

Redstem Stork's-bill67 obs.

All wildflowers blooming in Utah in May

#	Species	Scientific name	Family	Obs.	Peak in state
1	Sego Lily	Calochortus nuttallii	lily family	200	Jun (rising)
2	Arrowleaf Balsamroot	Balsamorhiza sagittata	Sunflowers, Daisies, Asters, and Allies	127	May (peak)
3	Greenleaf Manzanita	Arctostaphylos patula	heath family	107	May (peak)
4	Annual Honesty	Lunaria annua	mustard family	105	Apr (past peak)
5	Hooker's onion	Allium acuminatum	amaryllis, onions, and allies	93	Jun (rising)
6	Glacier Lily	Erythronium grandiflorum	lily family	88	Apr (past peak)
7	Creeping Mahonia	Berberis repens	barberry family	83	Apr (past peak)
8	Winding Mariposa Lily	Calochortus flexuosus	lily family	82	Apr (past peak)
9	Fendler's Sandmat	Euphorbia fendleri	Spurge Family	79	Jun (rising)
10	Upland Larkspur	Delphinium nuttallianum	buttercup family	74	May (peak)
11	Longhorn Steer's-Head	Dicentra uniflora	Poppy Family	68	May (peak)
12	Redstem Stork's-bill	Erodium cicutarium	Geranium family	67	Mar (past peak)
13	Scarlet Gilia	Ipomopsis aggregata	phlox family	64	Jun (rising)
14	Star-Flowered Lily-Of-The-Valley	Maianthemum stellatum	agave and allies	57	May (peak)
15	Spotted Fritillary	Fritillaria atropurpurea	lily family	54	May (peak)
16	Yellow Fritillary	Fritillaria pudica	lily family	54	Apr (past peak)
17	Chokecherry	Prunus virginiana	rose family	51	May (peak)
18	Notch-leaf Scorpionweed	Phacelia crenulata	borage family	47	May (peak)
19	Field Bindweed	Convolvulus arvensis	bindweed family	44	Jun (rising)
20	Large-Flowered Triteleia	Triteleia grandiflora	agave and allies	44	May (peak)
21	Antelope Bitterbrush	Purshia tridentata	rose family	43	Apr (past peak)
22	Scarlet Globemallow	Sphaeralcea coccinea	Mallow and Hibiscus Family	42	May (peak)
23	Yellow Sweetclover	Melilotus officinalis	Legumes	38	Jun (rising)
24	Sacred Datura	Datura wrightii	nightshade family	36	Sep (rising)
25	Yellow Salsify	Tragopogon dubius	Sunflowers, Daisies, Asters, and Allies	35	Jun (rising)
26	Lewis flax	Linum lewisii	Flax Family	35	Jun (rising)
27	Saskatoon	Amelanchier alnifolia	rose family	35	May (peak)
28	Common Dandelion	Taraxacum officinale	Sunflowers, Daisies, Asters, and Allies	34	May (peak)
29	Showy Milkweed	Asclepias speciosa	Dogbane Family	34	Jun (rising)
30	Antelopehorn Milkweed	Asclepias asperula	Dogbane Family	34	Jun (rising)
31	Golden Currant	Ribes aureum	Gooseberry Family	33	Apr (past peak)
32	Alfalfa	Medicago sativa	Legumes	32	Jun (rising)
33	Woodland Strawberry	Fragaria vesca	rose family	30	Jun (rising)
34	Blue Dicks	Dipterostemon capitatus	agave and allies	30	Apr (past peak)
35	Common Lilac	Syringa vulgaris	olive family	24	May (peak)
36	Desert Trumpet	Eriogonum inflatum	knotweed family	23	May (peak)
37	Monument Plant	Frasera speciosa	gentian family	22	Jul (rising)
38	Narrowleaf Puccoon	Lithospermum incisum	borage family	21	Apr (past peak)
39	Desert Marigold	Baileya multiradiata	Sunflowers, Daisies, Asters, and Allies	21	Apr (past peak)
40	Western Wallflower	Erysimum capitatum	mustard family	20	May (peak)
41	common star-of-Bethlehem	Ornithogalum umbellatum	agave and allies	19	Apr (past peak)
42	Desert Willow	Chilopsis linearis	bignonia family	19	Jun (rising)
43	Corn Gromwell	Buglossoides arvensis	borage family	19	Apr (past peak)
44	Curlycup Gumweed	Grindelia squarrosa	Sunflowers, Daisies, Asters, and Allies	18	Aug (rising)
45	Apricot Globemallow	Sphaeralcea ambigua	Mallow and Hibiscus Family	16	Apr (past peak)
46	Creosote Bush	Larrea tridentata	caltrops	16	Apr (past peak)
47	New Mexico locust	Robinia neomexicana	Legumes	16	May (peak)
48	Common Yarrow	Achillea millefolium	Sunflowers, Daisies, Asters, and Allies	15	Jul (rising)
49	Greater Periwinkle	Vinca major	Dogbane Family	15	Apr (past peak)
50	Bastard Toadflax	Comandra umbellata	sandalwood family	15	Apr (past peak)