When does apricot globemallow bloom in Nevada?

Most often in May. Across 550 dated, research-grade observations of Sphaeralcea ambigua in Nevada, the flowering season runs roughly March to December.

Peak May In flower 550 Examined 659 State Nevada

Flowering 550 in flower of 659 examined

62%

50%

88%

86%

96%

90%

92%

69%

77%

79%

64%

82%

Proportion of examined Sphaeralcea ambigua in Nevada in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	21	34	62%	45% to 76%
Feb	17	34	50%	34% to 66%
Mar	91	104	88%	80% to 93%
Apr	173	201	86%	81% to 90%
May	108	113	96%	90% to 98%
Jun	52	58	90%	79% to 95%
Jul	12	13	92%	67% to 99%
Aug	9	13	69%	42% to 87%
Sep	20	26	77%	58% to 89%
Oct	19	24	79%	60% to 91%
Nov	14	22	64%	43% to 80%
Dec	14	17	82%	59% to 94%

Peak flowering in May. Each bar is the share of Sphaeralcea ambigua in Nevada observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 550 of 659 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.wt38fd.

What this is, and what it is not

This is a record of when people in Nevada found Sphaeralcea ambigua in flower, not a forecast. It is computed only from observations made in Nevada, so it is not the species’ global average dragged onto a map: the same plant flowers on different dates in different places, and that is the entire point of the page.

It will not tell you what your particular plant will do this year. Bloom time moves with the season, with altitude, and with the weather, and a warm February pulls everything forward. We publish the distribution and the sample size, and we refuse to draw a month that too few people examined.

The plant

Sphaeralcea ambigua

apricot globemallow

Sourcesevery claim on this page

GBIF (iNaturalist Research-grade Observations). Dated flowering annotations in Nevada. Every record achieved iNaturalist quality grade Research, which is applied upstream at export. 10.15468/dl.wt38fd. Retrieved 2026-07-14.
World Flora Online Plant List. The accepted name. CC0. Retrieved 2026-07-12.