When does firecrackerbush bloom in Texas?

Most often in April. Across 294 dated, research-grade observations of Bouvardia ternifolia in Texas, the flowering season runs roughly April to October.

Peak April In flower 294 Examined 314 State Texas

Flowering 294 in flower of 314 examined

100%

98%

95%

82%

95%

Proportion of examined Bouvardia ternifolia 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	12	12	100%	76% to 100%
May	48	49	98%	89% to 100%
Jun	37	39	95%	83% to 99%
Jul	78	82	95%	88% to 98%
Aug	41	50	82%	69% to 90%
Sep	56	59	95%	86% to 98%
Oct	20	21	95%	77% to 99%
Nov	1	1	too few examined
Dec	1	1	too few examined

Peak flowering in Apr. Each bar is the share of Bouvardia ternifolia 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. 294 of 314 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 Bouvardia ternifolia 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

Bouvardia ternifolia

firecrackerbush

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.