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Critical spring temperatures for cherry bud development stages

View a pdf to print a similar table.
These tables were compiled by Mark Longstroth for radiation freezes. Read his thoughts about advective freezes (Easter 2007).

Sweet Cherries
Sweet Cherries	Swollen Bud	Side Green	Green Tip	Tight Cluster	Open Cluster	First White	First Bloom	Full Bloom	Post Bloom
Old temp 10% kill 90% kill	23 17 5	23 22 9	25 25 14	28 26 17	28 27 21	29 27 24	29 28 25	29 28 25	30 28 25
Tart Cherries
Tart Cherries	Swollen Bud	Side Green	Green Tip	Tight Cluster	Open Cluster	First White	First Bloom	Full Bloom
10% kill 90% kill	15 0	24 10	26 22	26 24	28 24	28 24	28 24	28 24

• Old standard temperature is the lowest temperature that can be endured for 30 minutes without damage.
• This chart also shows the temperature that will kill 10% and 90% of normal fruit buds.
• These numbers were taken from Washington (WSU) and Michigan (MSUE) Extension Bulletins. Sweet Cherries - WSU EB1128, Tart Cherries - MSU Research. Rpt. 220. Portions of these bulletins are posted at Greg Lang's Fruit Bud Hardiness Page at the MSU Horticulture Department.

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