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Grape Bloom Time Projections |
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| Vine Nutrition & Fertilizer Needs - Bloom time is one of the best times to sample grapevines and determine the status of nutrients. AgQuest can provide you with a complete laboratory analysis of your bloom time petiole sample along with fertilizer recommendations. To see a Sample Report click here. | ||||||
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To obtain your Free Petiole Sampling Kit click here or call 559-275-8095 |
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| Email Alerts - In 2009, we continue sending email reminders of activities that growers "should be" doing or at least thinking about during the growing season. To be included in this Mailing List click here: | ||||||
| Last Update: June 1, 2009 |
Next Update: March, 2010 |
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Location |
Variety |
2008 Bud Break |
2008 Actual Bloom |
2009 Bud Break |
2009 Predicted Bloom |
2009 Actual Bloom |
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Kern County |
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| Western | French Colombard | March 12 | May 9 | March 16 | May 4 | May 5 |
| Western | Syrah | March 20 | May 18 | March 20 | May 12 | May 12 |
| Fresno County | ||||||
| Parlier | Thompson Seedless | March 15 | May 15 | March 15 | May 12 | May 12 |
| Kerman | Thompson Seedless | March 15 | May 15 | March 16 | May 12 | May 12 |
| Kerman | Merlot | March 22 | May 15 | March 23 | May 13 | May 13 |
| Kerman | Syrah | March 23 | May 15 | March 24 | May 15 | May 16 |
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Madera County |
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| Central | Thompson Seedless | March 16 | May 16 | March 18 | May 13 | May 13 |
| Central | Chardonnay | March 14 | May 14 | March 18 | May 7 | May 6 |
| Central | Merlot | March 20 | May 20 | March 24 | May 11 | May 11 |
| Central | Syrah | March 23 | May 23 | March 25 | May 15 | May 14 |
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San Luis Obispo County |
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| Paso Robles | Cabernet Sauvignon | March 21 | May 24 | April 5 | May 26 | May 25 |
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Monterey County |
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| King City | Chardonnay | March 3 | May 28 | March 18 | May 29 | May 30 |
| King City | Pinot Noir | March 15 | May 31 | March 17 | May 24 | May 23 |
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Santa Barbara County |
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| Los Alamos |
Chardonnay |
March 10 | May 18 | March 10 | May 17 | May 21 |
| Los Alamos | Pinot Noir | March 16 | May 31 | March 17 | May 24 | May 24 |
| Research work
done the past 30 years has given us the ability to quite accurately predict when bloom will occur for grapevines. This work is based on the accumulation of degree-days from bud break to bloom. The time of bud break depends on the grape growing area, the specific variety and rootstock. The number of accumulated degree-days from bud For the areas listed above, we have recorded the |
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California
AgQuest Consulting, Inc. |
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