Season Tracker · live
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Plants follow accumulated heat, not the calendar. Enter your zip to see how this season’s growing degree days ran against a typical year — and when each care window opened.
Minneapolis-St Paul stationOct 31, 2026
3,321GDD₅₀
+3.4 accumulated on the last reading
Beyond the whole-year total of the station's 10-season average
This seasonTypical year
The season in review
Every window has closed for 2026. Here is when each one moved, against a typical season.
- ClosedPrune · Panicle hydrangeaHydrangea paniculataClosed Apr 17 · 10 days early0–90
- ClosedApply · Crabgrass pre-emergentOpened Apr 21 · 9 days early100–250
- ClosedTreat · Eastern tent caterpillarMalacosoma americanumOpened Apr 21 · 9 days early100–300
- ClosedProtect · Bronze birch borerAgrilus anxiusOpened May 29 · 4 days early450–800
- ClosedPrune · Common lilacSyringa vulgarisOpened Jun 1 · 4 days early500–900
- ClosedScout · Japanese beetlePopillia japonicaOpened Jun 26 · on the typical day950–2150
- ClosedTreat · Magnolia scale crawlersNeolecanium cornuparvumOpened Jul 30 · 7 days early1900–2200
First up in 2027: Prune · Panicle hydrangea, open from January 1; in a typical season it closes around April 27.
Get a heads-up when the next window opens.
This page tracks one station and a handful of marquee windows. Kloro reads every property’s station, raises advisories for the plants in its catalog, and runs the visits, crews and billing around them.
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