When does Desert Marigold bloom in Nevada?

Most often in November. Across 391 dated, research-grade observations of Baileya multiradiata in Nevada, the flowering season runs roughly January to December.

Peak November In flower 391 Examined 415 State Nevada

Flowering 391 in flower of 415 examined

92%

71%

95%

96%

90%

86%

96%

93%

100%

93%

Proportion of examined Baileya multiradiata in Nevada in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	11	12	92%	65% to 99%
Feb	10	14	71%	45% to 88%
Mar	52	55	95%	85% to 98%
Apr	126	132	95%	90% to 98%
May	61	64	95%	87% to 98%
Jun	26	27	96%	82% to 99%
Jul	9	10	90%	60% to 98%
Aug	6	7	86%	49% to 97%
Sep	26	27	96%	82% to 99%
Oct	26	28	93%	77% to 98%
Nov	25	25	100%	87% to 100%
Dec	13	14	93%	69% to 99%

Peak flowering in Nov. Each bar is the share of Baileya multiradiata 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. 391 of 415 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 Baileya multiradiata 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

Baileya multiradiata

Desert Marigold

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.