When does sea ox-eye bloom in Texas?

Most often in May. Across 359 dated, research-grade observations of Borrichia frutescens in Texas, the flowering season runs roughly March to December.

Peak May In flower 359 Examined 401 State Texas

Flowering 359 in flower of 401 examined

52%

67%

83%

98%

99%

95%

94%

90%

78%

86%

93%

Proportion of examined Borrichia frutescens in Texas in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	15	29	52%	34% to 69%
Feb	14	21	67%	45% to 83%
Mar	29	35	83%	67% to 92%
Apr	99	101	98%	93% to 99%
May	82	83	99%	93% to 100%
Jun	42	44	95%	85% to 99%
Jul	15	16	94%	72% to 99%
Aug	9	10	90%	60% to 98%
Sep	14	18	78%	55% to 91%
Oct	12	14	86%	60% to 96%
Nov	14	15	93%	70% to 99%
Dec	14	15	93%	70% to 99%

Peak flowering in May. Each bar is the share of Borrichia frutescens in Texas 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. 359 of 401 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 Texas found Borrichia frutescens in flower, not a forecast. It is computed only from observations made in Texas, 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

Borrichia frutescens

sea ox-eye

Sourcesevery claim on this page

GBIF (iNaturalist Research-grade Observations). Dated flowering annotations in Texas. 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.