When does Pink Honeysuckle bloom in California?

Most often in June. Across 1,415 dated, research-grade observations of Lonicera hispidula in California, the flowering season runs roughly May to June.

Peak June In flower 1,415 Examined 3,274 State California

Flowering 1,415 in flower of 3,274 examined

11%

14%

31%

70%

84%

61%

29%

Proportion of examined Lonicera hispidula in California in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	1	69	1%	0% to 8%
Feb	5	44	11%	5% to 24%
Mar	7	51	14%	7% to 26%
Apr	72	234	31%	25% to 37%
May	454	647	70%	67% to 74%
Jun	615	731	84%	81% to 87%
Jul	162	265	61%	55% to 67%
Aug	50	172	29%	23% to 36%
Sep	31	414	7%	5% to 10%
Oct	10	369	3%	1% to 5%
Nov	5	208	2%	1% to 6%
Dec	3	70	4%	1% to 12%

Peak flowering in Jun. Each bar is the share of Lonicera hispidula in California 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. 1,415 of 3,274 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 California found Lonicera hispidula in flower, not a forecast. It is computed only from observations made in California, 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

Lonicera hispidula

Pink Honeysuckle

Sourcesevery claim on this page

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