VARIETY See note below
CHILL HOURS ZONE FRUIT REPORTED*
PEACH & NECTARINE Arctic Glo™ --- WHITE Avalon Pride (Leaf Curl Resistant) Baby Gold #5- CLING Beaumont™ Biscoe Bounty Canadian Harmony Contender Cresthaven Crimson Rocket® - COLUMNAR Desiree™ Early Redhaven Elberta Encore Erly-Red-Fre (WHITE) Fantasia Firebright Flamin'Fury(R) PF- 1 Flamin'Fury(R) PF- 11-PEACH Flamin'Fury(R) PF- 12A Flamin'Fury(R) PF- 15A Flamin'Fury(R) PF- 17 Flamin'Fury(R) PF- 19-007 Flamin'Fury(R) PF- 20-007 Flamin'Fury(R) PF- 22-007 Flamin'Fury(R) PF- 23 Flamin'Fury(R) PF- 24-007 Flamin'Fury(R) PF- 24C-Cold Hardy Flamin'Fury(R) PF- 25 Flamin'Fury(R) PF- 27A Flamin'Fury(R) PF- 28-007 Flamin'Fury(R) PF- 30 Flamin'Fury(R) PF- 5B Flamin'Fury(R) PF- 5D-Big Flamin'Fury(R) PF- 7A-Freestone Flamin'Fury(R) PF- 8 Ball Flamin'Fury(R) PF- 9A-007 Flamin'Fury(R) PF- Big George™ Flamin'Fury(R) PF- EARLY 8 BALL Flamin'Fury(R) PF- FatLady™ 35-007 Flamin'Fury(R) PF- Lucky 13 Flamin'Fury(R) PF- LUCKY 24B Flamin'Fury® PF-11 Nectarine Flavortop Frost (Leaf Curl Resistant)
400-500 850 850 800 750-850 1050 850-950 800 950 800-950 850 400-600
Over 600 Over 600 Over 600 Over 600 Over 600 650-700 750 Over 600
Over 600
Over 600 Over 600 Over 600 Over 600 Over 600 Over 600 Over 600 600-700
5-8 5-8 5-8 5-8 5-8 5-8 5-8 4-8 5-8 5-8 5-8 5-8 5-9 5-8 5-8 5-9 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 4-8?? 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8
NECTARINE PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH NECTARINE NECTARINE PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH NECTARINE NECTARINE PEACH
VARIETY See note below Galaxy (PEENTO) Georgia Belle Glenglo™ Glohaven Golden Jubilee Grandpa's Golden Monarch™ Halehaven Hardired Independence JH Hale Loring Madison O'Henry Raritan Rose (WHITE) Red Globe Red Haven RedGold Redskin Reliance Saturn (PEENTO) STELLAR® - Allstar® STELLAR® - Autumnstar® STELLAR® - Blazingstar® STELLAR® - Blushingstar® (WHITE) STELLAR® - Brightstar® STELLAR® - Coralstar® STELLAR® - Earlystar® STELLAR® - Glowingstar® STELLAR® - Redstar® STELLAR® - Risingstar® STELLAR® - Starfire® STELLAR® - Sweetstar® SummerBeaut Suncrest Sunglo Nectarine Sweet Cap™ (PEENTO) Sweet-N-Up®- COLUMNAR Veteran Vinegold- CLING
CHILL HOURS ZONE FRUIT REPORTED* 450 800-850 850 850 850-900 700-900 800-900 750-900 850 750-800 950 850-950 800-950 850 700-800 750-1000 700
650-700 850
900-1000
5-9 5-8 5-8 5-8 5-8 5-8 5-8 4-8 5-8 5-8 5-9 5-8 6-9 5-8 5-8 4-9 5-8 5-9 4-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 5-8 4-8 5-8
PEACH PEACH PEACH PEACH PEACH PEACH PEACH NECTARINE NECTARINE PEACH PEACH PEACH PEACH PEACH PEACH PEACH NECTARINE PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH PEACH NECTARINE PEACH NECTARINE PEACH PEACH PEACH PEACH
4-8 5-8 4-7 4-8 4-8
APRICOT APRICOT APRICOT APRICOT APRICOT
APRICOT Afghanistan Apache Chinese Curtis Debbie's Gold
700
VARIETY See note below DR 606 Early Blush™ Goldcot Harcot Harglow Hargrande Harlayne Harogem Henderson Jerseycot Montrose Morden 604 OrangeRed Perfection Precious Rival Skaha Sulphany Sundrop Tilton Wenatchee-Moorpark Westcot
CHILL HOURS ZONE FRUIT REPORTED*
800 700 800
600-700
4-8 5-8 4-8 5-9 5-9 5-8 4-8 4-8 4-8 4-8 4-8 4-8 5-8 5-8 4-8 5-8 4-8 4-8 4-8 5-9 5-7 4-8
APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT APRICOT
4-8 5-8 5-8 4-8 5-8 3-8 5-8 5-8 4-9 5-8 5-10 5-9 5-8 5-8 3-8 5-8 5-8 5-9 4-8 4-8 4-9 3-8
HYBRID EUROPEAN JAPANESE HYBRID EUROPEAN HYBRID EUROPEAN EUROPEAN EUROPEAN JAPANESE JAPANESE JAPANESE EUROPEAN JAPANESE HYBRID EUROPEAN EUROPEAN EUROPEAN HYBRID JAPANESE EUROPEAN HYBRID
PLUM & PRUNE Alderman Autumn Sweet™ Black Amber Plum BlackIce® BlueFre Plum BUBBLEGUM PLUM® (Toka cv) Burton Count Althann's Gage Damson Duarte Plum Early Golden Elephant Heart Empress Plum Friar Plum Gracious Grandpa's Mirabelle Plum Grandpa's Prune Green Gage Plum Hanksa Howard Miracle Italian Prune Kaga
650-800
500-650 400
400-800 300-400 800
VARIETY See note below Kahinta LaCrescent Methley Plum Mount Royal Northern Blue Opal Pembina Pipestone President Plum Ruby Queen Santa Rosa Plum Satsuma Plum Seneca Shiro Plum Silver Prune Simka Plum Stanley Prune Sugar (German) Superior Plum Todd Toka Vanier Plum Wickson Plum Yakima Yellow Egg Plum
CHILL HOURS ZONE FRUIT REPORTED*
150-250
300-500 300 800 150-500
800-900 550-800
400-500
3-8 3-8 4-9 4-8 3-8 4-8 3-8 3-8 5-8 5-8 5-9 4-9 4-9 5-9 5-8 5-8 4-9 5-8 3-8 3-8 3-8 5-8 5-8 5-8 5-8
HYBRID HYBRID JAPANESE EUROPEAN EUROPEAN EUROPEAN HYBRID HYBRID EUROPEAN JAPANESE JAPANESE JAPANESE EUROPEAN JAPANESE EUROPEAN JAPANESE EUROPEAN EUROPEAN HYBRID EUROPEAN HYBRID JAPANESE JAPANESE EUROPEAN EUROPEAN
5-9 5-8 5-9 5-8 4-8 5-8 4-8 5-8 5-7 5-8 4-8 5-9
SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY
5-9 5-8 5-8 5-8 5-8 5-8
SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY
SWEET CHERRY Attika® (Kordia) Benton™ Bing Black Tartarian BlackGold™ Emperor Francis Gold Grandpa's Early Black™ (Rynbrandt) Hedelfingen Hudson Kristen Lapins Napoleon (aka Royal Anne) Ranier Regina™ Royal Anne (aka Napoleon) Schmidt's Schneider Skeena™
700-800 700-800
400-900 700-900 700-800
VARIETY See note below Stella Summit Sunset Bing® Sweetheart™ Ulster Van WhiteGold™
CHILL HOURS ZONE FRUIT REPORTED* 400-700 700-800 800 700-900
5-9 5-8 5-9 5-9 5-7 4-9 4-8
SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY SWEET CHERRY
5-8 4-9 4-8 4-9 3-8 5-8 4-8 3-8 4-9 3-8 4-9 4-9
TART CHERRY TART CHERRY TART CHERRY TART CHERRY TART CHERRY TART CHERRY TART CHERRY TART CHERRY TART CHERRY TART CHERRY TART CHERRY TART CHERRY
TART CHERRY Balaton Danube® Early Richmond English Morrello Evans Bali Jubileum® Mesabi Meteor Montmorency Northstar SuperMont™ (NY 13242) Surefire™
400-700
700 1000
VARIETY See note below
CHILL HOURS ZONE FRUIT REPORTED*
NOTES ABOUT CHILLING HOURS AND HARDINESS ZONES: Because so many customers have asked about chilling hours, Grandpa has compiled these charts from the best sources that he has. As you can see, many varieties have not been researched as to their specific chilling hour requirements. There is a reason for this! Unless you live in a region where it is VERY WARM all year around, such as Southern California, Florida, or the Gulf Coast regions, you may likely get enough chilling hours in most years for many varieties to properly break dormancy and bloom. Enough chilling hours are required during the dormant season to satisfy the plants need for dormancy. Insufficient chilling hours may delay bloom or even the breaking of dormancy and growth of the tree in the spring. Chilling hours are typically calculated at an optimum temperature of 40 degrees F. Over 50 degrees F no chilling hours are accumulated. Under 32 degrees F no chilling hours are accumulated because the plant is fully dormant with no cellular activity. The total numer of hours during the winter that the plant is in that 32-50 degree range will determine whether it has accumulated enough chilling hours. Because accumulated chilling is such a variable thing, the requirements are not hard firm numbers, but rather soft areas. Micro-climates and regional variations will also affect chilling hours, as well as hardiness zone issues. For the most part it is more important to make sure that you have selected varieties that are sufficiently hardy for your zone. Higher altitudes and elevations often are colder and will accumulate more chilling hours than lower elevations, such as valleys or sunny slopes, and their hardiness zone may differ slightly also. Even so, many varieties vary in their response to chilling hours, and as you can see there seems to be little pattern in the above numbers. Therefore, Grandpa takes them with a "grain of salt!" Unless you are in a region with very low chilling hours, you should not get too worried about this issue. Hardiness zones and chilling hours really show no relationship. This is likely due to the genes that control winter hardiness and cold tolerance not being the same or linked to the genes that control when a plant will come out of dormancy and bloom (chilling hour requirement). Once again, you can not see a real pattern relating chilling hours to hardiness by zone in these charts. For the most part, if you live in or near an area that has 600 or more chilling hours, you will likely be able to grow almost all varieties. If you live in a zone with less than 600 hours of chilling in a typical year, then you may want to grow varieties that are in the lower chilling hour requirement range. It helps to also talk with experienced gardeners and/or orchardists in your area and find out which varieties do best for them. Local experience is a very good guide.
