When does Pasture Heliotrope bloom in Texas?

Most often in June. Across 151 dated, research-grade observations of Euploca tenella in Texas, the flowering season runs roughly May to November.

Peak June In flower 151 Examined 154 State Texas

Flowering 151 in flower of 154 examined

Proportion of examined Euploca tenella in Texas in flower, by month
Month In flower Examined Share 95% interval
Jan 0 0 too few examined
Feb 0 0 too few examined
Mar 0 0 too few examined
Apr 1 1 too few examined
May 9 11 82% 52% to 95%
Jun 33 33 100% 90% to 100%
Jul 36 36 100% 90% to 100%
Aug 22 22 100% 85% to 100%
Sep 31 31 100% 89% to 100%
Oct 13 14 93% 69% to 99%
Nov 5 5 100% 57% to 100%
Dec 1 1 too few examined

Peak flowering in Jun. Each bar is the share of Euploca tenella 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. 151 of 154 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 5 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 Euploca tenella 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

Sourcesevery claim on this page

  1. 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.
  2. World Flora Online Plant List. The accepted name. CC0. Retrieved 2026-07-12.