When does Leatherwood bloom in Florida?

Most often in May. Across 52 dated, research-grade observations of Cyrilla racemiflora in Florida, the flowering season runs roughly May to June.

Peak May In flower 52 Examined 224 State Florida

Flowering 52 in flower of 224 examined

Proportion of examined Cyrilla racemiflora in Florida in flower, by month
Month In flower Examined Share 95% interval
Jan 0 5 0% 0% to 43%
Feb 0 6 0% 0% to 39%
Mar 0 9 0% 0% to 30%
Apr 7 24 29% 15% to 49%
May 25 44 57% 42% to 70%
Jun 10 18 56% 34% to 75%
Jul 3 11 27% 10% to 57%
Aug 2 15 13% 4% to 38%
Sep 2 16 13% 4% to 36%
Oct 2 29 7% 2% to 22%
Nov 1 34 3% 1% to 15%
Dec 0 13 0% 0% to 23%

Peak flowering in May. Each bar is the share of Cyrilla racemiflora 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. 52 of 224 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 Cyrilla racemiflora 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.