When does partridgeberry bloom in West Virginia?

Most often in June. Across 106 dated, research-grade observations of Mitchella repens in West Virginia, the flowering season runs roughly June.

Peak June In flower 106 Examined 631 State West Virginia

Flowering 106 in flower of 631 examined

23%

63%

19%

Proportion of examined Mitchella repens in West Virginia in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	0	18	0%	0% to 18%
Feb	0	18	0%	0% to 18%
Mar	0	59	0%	0% to 6%
Apr	1	69	1%	0% to 8%
May	28	120	23%	17% to 32%
Jun	66	105	63%	53% to 71%
Jul	10	52	19%	11% to 32%
Aug	0	53	0%	0% to 7%
Sep	1	42	2%	0% to 12%
Oct	0	40	0%	0% to 9%
Nov	0	24	0%	0% to 14%
Dec	0	31	0%	0% to 11%

Peak flowering in Jun. Each bar is the share of Mitchella repens in West Virginia 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. 106 of 631 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 West Virginia found Mitchella repens in flower, not a forecast. It is computed only from observations made in West Virginia, 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

Mitchella repens

partridgeberry

Sourcesevery claim on this page

GBIF (iNaturalist Research-grade Observations). Dated flowering annotations in West Virginia. 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.