When does pink thoroughwort bloom in Texas?

Most often in February. Across 202 dated, research-grade observations of Fleischmannia incarnata in Texas, the flowering season runs roughly January to December.

Peak February In flower 202 Examined 218 State Texas

Flowering 202 in flower of 218 examined

94%

100%

78%

84%

70%

95%

100%

Proportion of examined Fleischmannia incarnata in Texas in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	31	33	94%	80% to 98%
Feb	14	14	100%	78% to 100%
Mar	7	9	78%	45% to 94%
Apr	16	19	84%	62% to 94%
May	7	10	70%	40% to 89%
Jun	3	4	too few examined
Jul	3	3	too few examined
Aug	0	0	too few examined
Sep	3	4	too few examined
Oct	37	39	95%	83% to 99%
Nov	40	42	95%	84% to 99%
Dec	41	41	100%	91% to 100%

Peak flowering in Feb. Each bar is the share of Fleischmannia incarnata 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. 202 of 218 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 4 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 Texas found Fleischmannia incarnata 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

Fleischmannia incarnata

pink thoroughwort

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.