When does Cnidoscolus stimulosus bloom in Florida?

Most often in August. Across 764 dated, research-grade observations of Cnidoscolus stimulosus in Florida, the flowering season runs roughly January to September.

Peak August In flower 764 Examined 825 State Florida

Flowering 764 in flower of 825 examined

90%

81%

98%

97%

92%

97%

94%

100%

83%

65%

76%

60%

Proportion of examined Cnidoscolus stimulosus in Florida in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	18	20	90%	70% to 97%
Feb	29	36	81%	65% to 90%
Mar	157	161	98%	94% to 99%
Apr	191	197	97%	94% to 99%
May	132	143	92%	87% to 96%
Jun	63	65	97%	89% to 99%
Jul	49	52	94%	84% to 98%
Aug	42	42	100%	92% to 100%
Sep	48	58	83%	71% to 90%
Oct	13	20	65%	43% to 82%
Nov	16	21	76%	55% to 89%
Dec	6	10	60%	31% to 83%

Peak flowering in Aug. Each bar is the share of Cnidoscolus stimulosus in Florida 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. 764 of 825 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 Florida found Cnidoscolus stimulosus in flower, not a forecast. It is computed only from observations made in Florida, 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

Cnidoscolus stimulosus

Sourcesevery claim on this page

GBIF (iNaturalist Research-grade Observations). Dated flowering annotations in Florida. 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.