Mainini Ranch and Vineyard

Mainini Vineyard

Vineyard Overview

Mainini Ranch and Vineyard


Mainini Vineyard

Planted Area

13.36 acres




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74720 Indian Valley Road
San Miguel, CA, 93451



Everyvine Rating

Not rated

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Information about the planted areas of this vineyard

Grape Profile

Grape Details

Varietals: Petite Sirah (Durif), Zinfandel
Vine Age: 20 years (average)
Wine Regions: Central Coast

Vineyard Size

Planted Area: 13.36 acres

Wine History

Grapes from these blocks have been used in the following wines:
Wine (Vintage)PriceScore
1. Pulchella Winery (2012)$ -
2. Brecon Estate Peite Sirah (2012)$42
3. Wargin Wines Petite Sirah (2012)$ -
4. Zenaida Cellars (2012)$ -

Farm Certifications

These blocks do not have any farm certifications

Land Profile


Elevation1063.89 ft.
Slope15.2% (8.65°)
AspectSouth (199.69°)

Solar Radiation

Average Radiation TotalWH/m2
Growing Season147542.51

Climate Indices

Index Name
Growing Degree-Days3620.48
Huglin Index2764.5
Biologically Effective Degree-Days2034.95

Temperature & Rainfall

AverageHi °FLow °FRain in.
Growing Season85.8481.99
For more detailed information about the topography, climate, and soil of the vineyard blocks that grew these grapes, click on the individual blocks in the block list.

What's Available

No winegrapes or bulk wine sourced from this vineyard are currently available...

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Block List

Planted Areas of this Vineyard (6)

  1. Block: Palisades Petite Sirah (5.93 acres)
    Grape: Petite Sirah (Durif)
    1072.58 ft. | Chamise, Linne
    View block details
  2. Block: Rockpile Petite Sirah (2.66 acres)
    Grape: Petite Sirah (Durif)
    1073.99 ft. | Chamise, Linne
    View block details
  3. Block: Sauret Zinfandel (2.2 acres)
    Grape: Zinfandel
    1073.86 ft. | Chamise, Linne
    View block details
  4. Block: St Charles Zinfandel 1 (0.79 acres)
    Grape: Zinfandel
    1019.21 ft. | Chamise, Linne
    View block details
  5. Block: St Charles Zinfandel 2 (0.06 acres)
    Grape: Zinfandel
    1076.96 ft. | Linne
    View block details
  6. Block: St Peter's Church Zinfandel (1.72 acres)
    Grape: Zinfandel
    1066.72 ft. | Linne
    View block details

About Mainini Vineyard

Located on border of Southern Monterey County & Northern San Luis Obispo County. Monterey County Appellation. Elevation to 1130 ft. Calcareous soil. Prime, head-pruned, sustainable. Wide diurnal swing, with a bit hotter and a bit cooler temperatures than d San Miguel. Spacing 6X12, 605 vines per acre. 14 A. (1 A. trellised). Isolated location, good air-flow. All hand picked and pruned. Vineyard developed & planted in 2000, for Kent Rosenblum of Rosenblum Cellars; his choice of varietals and clones; with Richard Sauret (vineyard mgr. for 5 years), who laid-out the vineyard. Kent wanted another vineyard with these clones and varietals in this area, due to fruit-forward quality of grapes. Approx. 6 A. Zinfandel: St. Peter's Church, Sauret, and St Charles. Approx. 8 A. Petite Sirah: Rockpile and Palisades. Most vines field grafted with wood from original vineyards. Award winning wines.

Edit History

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Vineyard-ID: 2407
Created Date: July 16, 2012
Edit History: View Edit History of this Vineyard

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Data Notes and References


Farm Certifications: See the certifications page to learn more about the farm certifications Everyvine tracks.
Soil Horizon: Bedrock value set to "-" is not available. Available water capacity units are cm/cm.
Solar Radiation: Area Solar radiation has been calculated in watt hours per square meter (WH/m2)
Topography: Topography values are averaged over the block area. Aspect is expressed in positive degrees from 0 to 359.9, measured clockwise from north.
Growing Season: For use in various statistical averages, Everyvine defines the vineyard growing season as the period April 1st to October 31st.


The vineyard data presented here is most often sourced from the public data sources listed below. However, Everyvine also accepts data from vineyard owners who often have even better data they have collected themseleves.

If you have more accurate data on a vineyard go to: Data Submission page.

Topography: Topographic and solor radiation calculations are based on 1/3 arc-second (approx. 10m) elevation models. Data provided by U.S. Geological Survey (USGS), EROS Data Center, National Elevation Dataset,, 1999
Climate Indices: Calculations based on methodologies described by Gregory Jones and John Gladstones. See the following:
  • Jones, G.V, Duff, A.A., Hall, A., and J. Myers (2009). Spatial analysis of climate in winegrape growing regions in the western United States.” American Journal of Enology and Viticulture, in Press Spring 2010.
  • Gladstones, J. (1992) Viticulture and environment (Winetitles: Adelaide).
Month Climate Averages: Monthly and annual temperature and rainfall values based on 30-arcsec (800m) normals for the climatological period 1971-2000. Data provided by PRISM Climate Group, Oregon State University,, October 31,2008
Soil: Soil data is collected from the following sources:
  • SSURGO: Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Soil Survey Geographic (SSURGO) Database. Available online at
  • STATSGO2: Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. U.S. General Soil Map (STATSGO2). Available online at
  • Web Soil Survey: Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Web Soil Survey. Available online at
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