When does pigeonberry bloom in Florida?

Most often in July. Across 119 dated, research-grade observations of Rivina humilis in Florida, the flowering season runs roughly February to July.

Peak July In flower 119 Examined 217 State Florida

Flowering 119 in flower of 217 examined

Proportion of examined Rivina humilis in Florida in flower, by month
Month In flower Examined Share 95% interval
Jan 21 40 53% 38% to 67%
Feb 17 22 77% 57% to 90%
Mar 9 12 75% 47% to 91%
Apr 10 25 40% 23% to 59%
May 3 6 50% 19% to 81%
Jun 9 15 60% 36% to 80%
Jul 5 6 83% 44% to 97%
Aug 3 6 50% 19% to 81%
Sep 13 21 62% 41% to 79%
Oct 8 14 57% 33% to 79%
Nov 13 30 43% 27% to 61%
Dec 8 20 40% 22% to 61%

Peak flowering in Jul. Each bar is the share of Rivina humilis 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. 119 of 217 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 Rivina humilis 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

Sourcesevery claim on this page

  1. 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.
  2. World Flora Online Plant List. The accepted name. CC0. Retrieved 2026-07-12.