When does shrubby blue sage bloom in Texas?

Most often in February. Across 468 dated, research-grade observations of Salvia ballotiflora in Texas, the flowering season runs roughly January to December.

Peak February In flower 468 Examined 513 State Texas

Flowering 468 in flower of 513 examined

Proportion of examined Salvia ballotiflora in Texas in flower, by month
Month In flower Examined Share 95% interval
Jan 15 17 88% 66% to 97%
Feb 9 9 100% 70% to 100%
Mar 31 32 97% 84% to 99%
Apr 107 117 91% 85% to 95%
May 66 73 90% 82% to 95%
Jun 22 24 92% 74% to 98%
Jul 11 12 92% 65% to 99%
Aug 14 18 78% 55% to 91%
Sep 30 30 100% 89% to 100%
Oct 60 66 91% 82% to 96%
Nov 56 63 89% 79% to 95%
Dec 47 52 90% 79% to 96%

Peak flowering in Feb. Each bar is the share of Salvia ballotiflora 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. 468 of 513 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 Salvia ballotiflora 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.