When does White beggarticks bloom in Georgia?

Most often in October. Across 145 dated, research-grade observations of Bidens alba in Georgia, the flowering season runs roughly April to December.

Peak October In flower 145 Examined 180 State Georgia

Flowering 145 in flower of 180 examined

Proportion of examined Bidens alba in Georgia in flower, by month
Month In flower Examined Share 95% interval
Jan 5 9 56% 27% to 81%
Feb 2 3 too few examined
Mar 3 7 43% 16% to 75%
Apr 12 13 92% 67% to 99%
May 18 19 95% 75% to 99%
Jun 3 3 too few examined
Jul 5 9 56% 27% to 81%
Aug 10 19 53% 32% to 73%
Sep 34 38 89% 76% to 96%
Oct 25 26 96% 81% to 99%
Nov 17 21 81% 60% to 92%
Dec 11 13 85% 58% to 96%

Peak flowering in Oct. Each bar is the share of Bidens alba in Georgia 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. 145 of 180 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 2 months have fewer than 5 examined observations, so no proportion is drawn for them. 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 Georgia found Bidens alba in flower, not a forecast. It is computed only from observations made in Georgia, 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 Georgia. 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.