When does Dakota mock vervain bloom in Texas?

Most often in June. Across 1,154 dated, research-grade observations of Verbena bipinnatifida in Texas, the flowering season runs roughly February to November.

Peak June In flower 1,154 Examined 1,186 State Texas

Flowering 1,154 in flower of 1,186 examined

73%

93%

96%

99%

100%

96%

100%

91%

79%

Proportion of examined Verbena bipinnatifida in Texas in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	8	11	73%	43% to 90%
Feb	27	29	93%	78% to 98%
Mar	233	242	96%	93% to 98%
Apr	372	375	99%	98% to 100%
May	158	160	99%	96% to 100%
Jun	119	119	100%	97% to 100%
Jul	66	69	96%	88% to 99%
Aug	19	19	100%	83% to 100%
Sep	51	51	100%	93% to 100%
Oct	43	43	100%	92% to 100%
Nov	32	35	91%	78% to 97%
Dec	26	33	79%	62% to 89%

Peak flowering in Jun. Each bar is the share of Verbena bipinnatifida 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. 1,154 of 1,186 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 Verbena bipinnatifida 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

Verbena bipinnatifida

Dakota mock vervain

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.