Beekeeping decisions follow the bloom calendar. Add supers before the June flow, treat for Varroa before the fall flow, feed before winter sets in. This reference covers every month from March through October so you can plan around what's actually happening in Cache Valley — not generic advice written for a different climate.
See also: Full forage guide — deeper dives on peak flow timing, what to plant, and how forage affects your honey flavor.
Bloom & Action Calendar
| Month | Major Blooms | Nectar Flow | Dearth Risk | Beekeeping Action |
|---|---|---|---|---|
| March | None | None | High | Feed 1:1 syrup and pollen patties if stores are low. Check colony weight. Do not open if temps are below 50°F. |
| April | Willow, maple, apricot, plum | Light (pollen-heavy) | Moderate | First natural pollen triggers brood rearing — colony can outpace stores. Keep feeding 1:1 syrup until dandelions are in full bloom. Do your first spring inspection mid-month. |
| May | Dandelions, apple, cherry, clover (early), penstemon | Moderate | Low | Stop feeding once dandelions are in full bloom. Add a medium super if the top box is 70% full. Check for swarm cells — population boom + fresh nectar = swarm pressure. See our starter kits if you need equipment for a split. |
| June | White clover, sweet clover, alfalfa (starts), wildflowers, yellow beeplant | Peak | None | Main honey-making window. Add supers aggressively — stack when the top super is 70% full. Use a queen excluder under supers. Stop feeding. Watch for swarming. Harvest clover varietal in late June before wildflower mix comes in. |
| July (early) | Alfalfa (peak), lavender, Russian sage, globemallow | Moderate–Strong | Low | Flow continues — keep supers on. Begin planning Varroa treatment for late July. See our bee health supplies. |
| July (late) | Sunflowers, Russian sage, blanketflower | Light–Moderate | Moderate | Summer dearth begins. Bees become defensive. Reduce entrances on weaker hives with an entrance reducer to prevent robbing. Treat for Varroa now — this protects the winter bees being raised in August. Use our Varroa treatment guide. |
| August | Goldenrod, aster, sunflowers, blanketflower, rabbitbrush (starts) | Moderate (fall flow) | Low | Fall flow builds winter stores — let bees keep this honey. Harvest any surplus from spring/summer supers. Check that the colony has 60+ lbs of stores for winter. Browse our extraction & processing supplies. |
| September | Goldenrod (late), rabbitbrush, aster (late) | Light | Moderate | Last foraging window. Feed 2:1 syrup if stores are under 60 lbs. Remove supers. Confirm mite treatment is done. Reduce entrance to mouse-guard width using a mouse guard. Check out our full winter prep checklist. |
| October | None | None | High | Colony survives on stored honey. Ensure mouse guard is installed. Wrap or insulate if using moisture quilts. Last chance to check weight before cold sets in. Do not open hive once sustained temps drop below 50°F. |
| Nov–Feb | None | None | Critical | Winter cluster. Check weight monthly by hefting from behind. Feed emergency candy boards on top of frames if stores run low. Do not open. Plan your spring splits and equipment orders now. |
The Three Windows That Matter Most
Window 1: June Clover Flow
This is your money month. White clover and sweet clover explode across the valley floor, alfalfa fields start blooming, and the foothills fill with wildflowers. A strong colony can pack away 5–10 lbs of nectar per day. Have your supers stacked and ready by the first week of June.
Window 2: Late July Dearth
When clover finishes and fall flowers haven't started, there's a lean stretch — usually 2–4 weeks in late July. This is when robbing spikes and defensive behavior peaks. It's also the critical window to complete your Varroa treatment: the winter bees being raised in August need to emerge mite-free.
Window 3: August–September Fall Flow
Goldenrod, aster, and rabbitbrush give your colony a second wind in late summer. This nectar is meant for winter stores — resist the urge to harvest it unless your colony clearly has surplus beyond 60 lbs. Dark fall honey keeps colonies alive through February.
Linking Bloom Timing to Hive Decisions
| Decision | When to Act | Why the Bloom Calendar Drives It |
|---|---|---|
| Add honey supers | First week of June | Clover flow starts. Bees need space or they swarm. |
| Stop feeding syrup | When dandelions peak (early May) | Syrup in supers contaminates honey; natural flow covers needs. |
| Treat for Varroa | Late July dearth | Low capped brood = maximum treatment efficacy. |
| Harvest surplus honey | Late June (clover), late August (fall) | Harvest between flows to keep varietals separate. |
| Feed 2:1 syrup | September (if stores < 60 lbs) | Last chance before cold; bees need to ripen and cap syrup before freeze. |
| Install mouse guard | September–October | Foraging slows; mice seek warm spaces as temps drop. |
| Check stores / feed emergency candy | January–February | Colonies can starve 6–8 weeks before bloom with no intervention. |
Related Resources
- Cache Valley Bee Forage Guide — deeper look at peak flow timing, what to plant, and honey flavor by season
- Spring Inspection Checklist — what to check before the June flow kicks in
- Varroa Treatment Guide — treatment timing tied to bloom gaps
- Beekeeping Starter Kits — gear for every stage of the season
- Bee Health Supplies — treatments, feeders, and supplements
- Beginner Checklist — full pre-season checklist for new beekeepers
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