When does Rubber Rabbitbrush bloom in Nevada?

Most often in September. Across 70 dated, research-grade observations of Ericameria nauseosa in Nevada, the flowering season runs roughly September to November.

Peak September In flower 70 Examined 105 State Nevada

Flowering 70 in flower of 105 examined

69%

94%

91%

82%

Proportion of examined Ericameria nauseosa in Nevada in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	0	13	0%	0% to 23%
Feb	1	4	too few examined
Mar	0	2	too few examined
Apr	0	2	too few examined
May	0	0	too few examined
Jun	0	1	too few examined
Jul	1	4	too few examined
Aug	9	13	69%	42% to 87%
Sep	29	31	94%	79% to 98%
Oct	20	22	91%	72% to 97%
Nov	9	11	82%	52% to 95%
Dec	1	2	too few examined

Peak flowering in Sep. Each bar is the share of Ericameria nauseosa 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. 70 of 105 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 7 months have fewer than 5 examined observations, so no proportion is drawn for them. 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 Ericameria nauseosa 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

Ericameria nauseosa

Rubber Rabbitbrush

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.