When does sea purslane bloom in Florida?

Most often in July. Across 81 dated, research-grade observations of Sesuvium portulacastrum in Florida, the flowering season runs roughly April to November.

Peak July In flower 81 Examined 101 State Florida

Flowering 81 in flower of 101 examined

Proportion of examined Sesuvium portulacastrum in Florida in flower, by month
Month In flower Examined Share 95% interval
Jan 4 4 too few examined
Feb 6 8 75% 41% to 93%
Mar 9 14 64% 39% to 84%
Apr 10 11 91% 62% to 98%
May 11 12 92% 65% to 99%
Jun 8 10 80% 49% to 94%
Jul 5 5 100% 57% to 100%
Aug 5 5 100% 57% to 100%
Sep 6 8 75% 41% to 93%
Oct 7 9 78% 45% to 94%
Nov 8 8 100% 68% to 100%
Dec 2 7 29% 8% to 64%

Peak flowering in Jul. Each bar is the share of Sesuvium portulacastrum 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. 81 of 101 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. One month has fewer than 5 examined observations, so no proportion is drawn for it. 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 Sesuvium portulacastrum 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.