What's flowering for honey bees near Cotati, CA (Sonoma County / Santa Rosa Plain, Northern California Coast Ranges (Mediterranean climate)), month by month — 34 local nectar and pollen sources.
Open the interactive, printable calendar →← More California bee forage calendars
| Plant | Scientific name | Category | Bloom months | Forage value |
|---|---|---|---|---|
| Bay Laurel | Umbellularia californica | Trees | Jan–Mar | low |
| Manzanita | Arctostaphylos manzanita | Shrubs & Vines | Jan–Mar | medium |
| Rosemary | Salvia rosmarinus | Shrubs & Vines | Jan–Apr | medium |
| Willow (Arroyo/Sandbar) | Salix lasiolepis / Salix spp. | Trees | Feb–Mar | high |
| Fruit Orchard (Plum/Cherry/Apple) | Prunus spp. / Malus spp. | Trees | Feb–Apr | medium |
| California Mustard | Brassica rapa / Hirschfeldia incana | Wildflowers & Weeds | Feb–May | high |
| Miner's Lettuce | Claytonia perfoliata | Wildflowers & Weeds | Feb–Apr | low |
| Coast Live Oak | Quercus agrifolia | Trees | Mar–Apr | low |
| Bigleaf Maple | Acer macrophyllum | Trees | Mar–Apr | medium |
| Ceanothus (Blueblossom) | Ceanothus thyrsiflorus | Shrubs & Vines | Mar–Apr | high |
| French Broom | Genista monspessulana | Shrubs & Vines | Mar–May | medium |
| Crimson Clover | Trifolium incarnatum | Clover & Legumes | Mar–May | medium |
| Bur Clover | Medicago polymorpha | Clover & Legumes | Mar–May | medium |
| California Poppy | Eschscholzia californica | Wildflowers & Weeds | Mar–Jun | medium |
| Wild Radish | Raphanus sativus | Wildflowers & Weeds | Mar–Jun | medium |
| California Wild Grape | Vitis californica | Shrubs & Vines | Apr–May | low |
| White Clover | Trifolium repens | Clover & Legumes | Apr–Jul | high |
| Vetch | Vicia sativa | Clover & Legumes | Apr–Jun | medium |
| Phacelia | Phacelia tanacetifolia | Wildflowers & Weeds | Apr–Jun | high |
| California Buckeye | Aesculus californica | Trees | May–Jun | low |
| Black Locust | Robinia pseudoacacia | Trees | May | medium |
| Blackberry (Himalayan/California) | Rubus armeniacus / Rubus ursinus | Shrubs & Vines | May–Jun | high |
| Elderberry | Sambucus nigra ssp. caerulea | Shrubs & Vines | May–Jun | medium |
| Bird's-foot Trefoil | Lotus corniculatus | Clover & Legumes | May–Aug | medium |
| Yellow Sweetclover | Melilotus officinalis | Clover & Legumes | May–Aug | medium |
| California Buckeye Alternative - Toyon | Heteromeles arbutifolia | Shrubs & Vines | Jun–Jul | medium |
| Lavender | Lavandula spp. | Shrubs & Vines | Jun–Aug | medium |
| Yellow Star Thistle | Centaurea solstitialis | Wildflowers & Weeds | Jun–Sep | high |
| Fennel | Foeniculum vulgare | Wildflowers & Weeds | Jun–Sep | medium |
| Tarweed | Holocarpha virgata / Madia spp. | Wildflowers & Weeds | Jul–Sep | medium |
| Coyote Brush | Baccharis pilularis | Shrubs & Vines | Aug–Oct | high |
| Goldenrod | Solidago californica | Wildflowers & Weeds | Aug–Oct | high |
| California Aster | Symphyotrichum chilense | Wildflowers & Weeds | Aug–Oct | medium |
| Blue Gum Eucalyptus | Eucalyptus globulus | Trees | Dec–Mar | high |
A bee forage bloom calendar shows which nectar and pollen plants are blooming in a given area, month by month, so beekeepers can plan colony buildup, splits, and honey harvests around the local bloom.
Every calendar starts with your zip code's specific growing region — its climate, elevation, and local ecology. From there, we use AI trained on horticultural and beekeeping knowledge to work out which nectar and pollen plants actually grow there and when they typically bloom, the same kind of judgment call an experienced local beekeeping mentor or extension agent would make, just automated so any US zip code can get a calendar in minutes instead of years of local observation. Each calendar typically covers 25-40 plants across trees, shrubs and vines, clover and legumes, and wildflowers, plus the area's named honey flows. We keep the exact generation process under wraps, but the goal is always the same: real, locally-grounded bloom timing instead of generic national averages.
The region-specific bloom timing, honey flows, and beekeeping notes are produced by an AI system drawing on general horticultural, ecological, and beekeeping knowledge, applied to your area's specific climate and geography — rather than looked up from a single official bloom-timing database, since no such nationwide dataset exists at this level of local detail.
A nectar dearth (or dearth period) is a stretch of the year when little or no medium-to-high value forage is blooming. Colonies may need supplemental feeding during a dearth to avoid starvation or robbing behavior.
A honey flow (or nectar flow) is a period when nectar is abundant enough for a colony to produce surplus honey beyond what it needs to survive, often tied to a specific major regional bloom like clover or black locust.
Bloom timing is generated from regional climate and ecology data and is intended as a general planning reference. It may not perfectly match a specific microclimate, so it's worth cross-checking against your own field observations.
Yes. Enter any US zip code to get a free, printable bee forage bloom calendar — no signup required.