When does shaggy portulaca bloom in Texas?

Most often in October. Across 386 dated, research-grade observations of Portulaca pilosa in Texas, the flowering season runs roughly June to October.

Peak October In flower 386 Examined 488 State Texas

Flowering 386 in flower of 488 examined

68%

66%

76%

82%

80%

86%

87%

69%

Proportion of examined Portulaca pilosa in Texas in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	2	2	too few examined
Feb	1	1	too few examined
Mar	0	0	too few examined
Apr	19	28	68%	49% to 82%
May	23	35	66%	49% to 79%
Jun	91	119	76%	68% to 83%
Jul	99	121	82%	74% to 88%
Aug	55	69	80%	69% to 88%
Sep	51	59	86%	75% to 93%
Oct	34	39	87%	73% to 94%
Nov	9	13	69%	42% to 87%
Dec	2	2	too few examined

Peak flowering in Oct. Each bar is the share of Portulaca pilosa 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. 386 of 488 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 Portulaca pilosa 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

Portulaca pilosa

shaggy portulaca

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.