When does pickerelweed bloom in Florida?

Most often in June. Across 552 dated, research-grade observations of Pontederia cordata in Florida, the flowering season runs roughly January to December.

Peak June In flower 552 Examined 633 State Florida

Flowering 552 in flower of 633 examined

80%

83%

89%

90%

92%

97%

76%

81%

90%

80%

84%

90%

Proportion of examined Pontederia cordata in Florida in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	20	25	80%	61% to 91%
Feb	35	42	83%	69% to 92%
Mar	72	81	89%	80% to 94%
Apr	117	130	90%	84% to 94%
May	69	75	92%	84% to 96%
Jun	33	34	97%	85% to 99%
Jul	19	25	76%	57% to 89%
Aug	34	42	81%	67% to 90%
Sep	43	48	90%	78% to 95%
Oct	43	54	80%	67% to 88%
Nov	31	37	84%	69% to 92%
Dec	36	40	90%	77% to 96%

Peak flowering in Jun. Each bar is the share of Pontederia cordata 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. 552 of 633 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 Pontederia cordata 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

Pontederia cordata

pickerelweed

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.