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种植时间

什么时候种 Spinach

没有哪一个日期放之四海而皆准。Spinach 的种植时间是相对你自己的终霜来定的，所以答案 从 November 25 （San Diego, CA） 一直排到 April 30 （Burns, OR）。 在下面找你所在的城镇。

简短版

怎么下地direct sow
露地定植 终霜前 42 天到终霜前 7 天
收获天数35–50
耐寒程度hardy
最低土壤温度35 °F
传统月相娥眉月
值得一提：Plant as early as the soil can be worked - Maryland starts March 10. Bolts quickly once days lengthen and warm, so the spring window closes before the last frost. Fall spinach often overwinters under mulch for a very early spring cut.

在你所在的城镇，什么时候种 spinach

这里的每个日期都是按当地自己的霜冻日期算出来的——有气象站的地方用 NOAA 实测站点常态值， 没有的地方则由周边气候网格推算。“最佳月相日”是时间窗内落在该作物传统月相上的那几天。

地点分区 露地定植 秋季播种 最佳月相日
Birmingham, AL 8a Feb 7 – Mar 14 Aug 23 – Sep 9 Feb 18–23
Greensboro, AL 8b Feb 3 – Mar 10 Aug 23 – Sep 9 Feb 18–23
Hoover, AL 估算 8b Feb 6 – Mar 13 Aug 22 – Sep 8 Feb 18–23
Huntsville, AL 估算 8a Feb 15 – Mar 22 Aug 16 – Sep 2 Feb 18–23
Mobile, AL 9a Jan 10 – Feb 14 Sep 17 – Oct 4 Jan 19–24
Montgomery, AL 估算 8b Jan 30 – Mar 6 Aug 27 – Sep 13 Feb 18–23
Tuscaloosa, AL 估算 8a Feb 6 – Mar 13 Aug 22 – Sep 8 Feb 18–23
Anchorage, AK 5b Mar 24 – Apr 28 Jul 13 – Jul 30 Mar 24, Apr 18–22
Badger, AK 估算 2a Apr 1 – May 6 Jun 21 – Jul 8 Apr 18–22
Bethel, AK 4a Apr 9 – May 14 Jul 4 – Jul 21 Apr 18–22
Eagle River, AK 估算 5a Mar 30 – May 4 Jul 6 – Jul 23 Apr 18–22
Fairbanks, AK 2a Apr 1 – May 6 Jun 25 – Jul 12 Apr 18–22
Juneau, AK 7a Mar 23 – Apr 27 Jul 15 – Aug 1 Mar 23–24, Apr 18–21
Ketchikan, AK 8a Mar 11 – Apr 15 Aug 4 – Aug 21 Mar 19–24
Kodiak, AK 7b Mar 24 – Apr 28 Jul 15 – Aug 1 Mar 24, Apr 18–22
Nome, AK 4a Apr 24 – May 29 Jun 15 – Jul 2 May 17–22
Flagstaff, AZ 6a Apr 23 – May 28 Jul 10 – Jul 27 May 17–22
Phoenix, AZ 10a Nov 27 – Jan 1 Oct 6 – Oct 23 Dec 20–25
Tucson, AZ 9b Dec 25 – Jan 29 Sep 20 – Oct 7 Dec 25–26, Jan 19–22
Fayetteville, AR 估算 7a Feb 25 – Apr 1 Aug 10 – Aug 27 Mar 19–24
Fort Smith, AR 估算 8a Feb 17 – Mar 24 Aug 15 – Sep 1 Feb 18–23
Little Rock, AR 8a Feb 7 – Mar 14 Aug 22 – Sep 8 Feb 18–23
Antioch, CA 估算 9b Dec 22 – Jan 26 Sep 17 – Oct 4 Dec 22–26, Jan 19
Arden-Arcade, CA 估算 9b Jan 11 – Feb 15 Sep 12 – Sep 29 Jan 19–24
Bakersfield, CA 9b Dec 20 – Jan 24 Sep 19 – Oct 6 Dec 20–25
Chico, CA 估算 9b Jan 18 – Feb 22 Sep 9 – Sep 26 Jan 19–24
Chino, CA 估算 9a Jan 21 – Feb 25 Sep 9 – Sep 26 Jan 21–24, Feb 18–19
Citrus Heights, CA 估算 9b Jan 11 – Feb 15 Sep 12 – Sep 29 Jan 19–24
Clovis, CA 估算 9b Jan 2 – Feb 6 Sep 15 – Oct 2 Jan 19–24
Elk Grove, CA 估算 9b Dec 27 – Jan 31 Sep 17 – Oct 4 Jan 19–24
Eureka, CA 9b Jan 25 – Mar 1 Sep 11 – Sep 28 Feb 18–23
Fontana, CA 估算 9a Jan 25 – Mar 1 Sep 6 – Sep 23 Feb 18–23
Fresno, CA 9b Dec 3 – Jan 7 Sep 25 – Oct 12 Dec 20–25
Hesperia, CA 估算 9a Jan 25 – Mar 1 Sep 6 – Sep 23 Feb 18–23
Lancaster, CA 估算 8b Feb 12 – Mar 19 Aug 29 – Sep 15 Feb 18–23
Modesto, CA 估算 9b Jan 4 – Feb 8 Sep 14 – Oct 1 Jan 19–24
Oceanside, CA 9b Jan 5 – Feb 9 Sep 19 – Oct 6 Jan 19–24
Ontario, CA 估算 9a Jan 21 – Feb 25 Sep 9 – Sep 26 Jan 21–24, Feb 18–19
Palmdale, CA 估算 8b Feb 12 – Mar 19 Aug 29 – Sep 15 Feb 18–23
Pomona, CA 估算 9a Jan 21 – Feb 25 Sep 9 – Sep 26 Jan 21–24, Feb 18–19
Rancho Cucamonga, CA 估算 9a Jan 21 – Feb 25 Sep 9 – Sep 26 Jan 21–24, Feb 18–19
Redding, CA 9a Jan 20 – Feb 24 Sep 2 – Sep 19 Jan 20–24, Feb 18
Rialto, CA 估算 9a Jan 25 – Mar 1 Sep 6 – Sep 23 Feb 18–23
Roseville, CA 估算 9b Jan 11 – Feb 15 Sep 12 – Sep 29 Jan 19–24
Sacramento, CA 9b Dec 22 – Jan 26 Sep 13 – Sep 30 Dec 22–26, Jan 19
Salinas, CA 估算 9b Dec 19 – Jan 23 Sep 23 – Oct 10 Dec 20–25
San Bernardino, CA 估算 9a Jan 25 – Mar 1 Sep 6 – Sep 23 Feb 18–23
San Diego, CA 10b Nov 25 – Dec 30 Oct 12 – Oct 29 Nov 25–26, Dec 20–23
San Jose, CA 估算 9b Dec 29 – Feb 2 Sep 22 – Oct 9 Jan 19–24
Santa Clara, CA 估算 9b Dec 29 – Feb 2 Sep 22 – Oct 9 Jan 19–24
Santa Maria, CA 9b Dec 24 – Jan 28 Sep 24 – Oct 11 Dec 24–26, Jan 19–21
Stockton, CA 估算 9b Dec 31 – Feb 4 Sep 14 – Oct 1 Jan 19–24
Tracy, CA 估算 9b Dec 31 – Feb 4 Sep 14 – Oct 1 Jan 19–24
Vacaville, CA 估算 9b Dec 22 – Jan 26 Sep 17 – Oct 4 Dec 22–26, Jan 19
Victorville, CA 估算 8b Feb 2 – Mar 9 Aug 29 – Sep 15 Feb 18–23
Visalia, CA 估算 9b Jan 3 – Feb 7 Sep 14 – Oct 1 Jan 19–24
West Covina, CA 估算 9a Jan 21 – Feb 25 Sep 9 – Sep 26 Jan 21–24, Feb 18–19
Arvada, CO 估算 5b Mar 30 – May 4 Jul 15 – Aug 1 Apr 18–22
Aurora, CO 估算 6a Mar 24 – Apr 28 Jul 20 – Aug 6 Mar 24, Apr 18–22
Boulder, CO 估算 5b Apr 8 – May 13 Jul 8 – Jul 25 Apr 18–22
Centennial, CO 估算 6a Mar 24 – Apr 28 Jul 20 – Aug 6 Mar 24, Apr 18–22
Colorado Springs, CO 估算 6a Apr 1 – May 6 Jul 15 – Aug 1 Apr 18–22
Denver, CO 6a Mar 24 – Apr 28 Jul 21 – Aug 7 Mar 24, Apr 18–22
Fort Collins, CO 估算 5b Apr 5 – May 10 Jul 10 – Jul 27 Apr 18–22
Grand Junction, CO 7a Mar 12 – Apr 16 Aug 1 – Aug 18 Mar 19–24
Greeley, CO 估算 5b Mar 26 – Apr 30 Jul 16 – Aug 2 Apr 18–22
Highlands Ranch, CO 估算 6a Mar 24 – Apr 28 Jul 20 – Aug 6 Mar 24, Apr 18–22
Lakewood, CO 估算 5b Mar 30 – May 4 Jul 15 – Aug 1 Apr 18–22
Longmont, CO 估算 5b Apr 8 – May 13 Jul 8 – Jul 25 Apr 18–22
Pueblo, CO 5b Mar 19 – Apr 23 Jul 21 – Aug 7 Mar 19–24
Thornton, CO 估算 6a Mar 24 – Apr 28 Jul 20 – Aug 6 Mar 24, Apr 18–22
Westminster, CO 估算 5b Mar 30 – May 4 Jul 15 – Aug 1 Apr 18–22
Bridgeport, CT 估算 7a Mar 9 – Apr 13 Aug 5 – Aug 22 Mar 19–24
Danbury, CT 估算 7a Mar 9 – Apr 13 Aug 5 – Aug 22 Mar 19–24
East Norwalk, CT 估算 7a Mar 9 – Apr 13 Aug 5 – Aug 22 Mar 19–24
Hartford, CT 6b Mar 10 – Apr 14 Jul 28 – Aug 14 Mar 19–24
New Haven, CT 估算 7a Mar 4 – Apr 8 Aug 12 – Aug 29 Mar 19–24
North Stamford, CT 估算 7a Mar 10 – Apr 14 Aug 4 – Aug 21 Mar 19–24
Norwalk, CT 估算 7a Mar 9 – Apr 13 Aug 5 – Aug 22 Mar 19–24
Stamford, CT 估算 7a Mar 10 – Apr 14 Aug 4 – Aug 21 Mar 19–24
Waterbury, CT 估算 6a Mar 21 – Apr 25 Jul 24 – Aug 10 Mar 21–24, Apr 18–19
Dover, DE 估算 7b Feb 26 – Apr 2 Aug 13 – Aug 30 Mar 19–24
Wilmington, DE 估算 7a Mar 2 – Apr 6 Aug 11 – Aug 28 Mar 19–24
Downtown DC, DC 估算 7b Feb 24 – Mar 31 Aug 14 – Aug 31 Mar 19–24
Washington, DC 估算 7b Feb 24 – Mar 31 Aug 14 – Aug 31 Mar 19–24
Washington, D.C., DC 8a Feb 10 – Mar 17 Aug 30 – Sep 16 Feb 18–23
Gainesville, FL 估算 9a Jan 17 – Feb 21 Sep 17 – Oct 4 Jan 19–24
Tallahassee, FL 9a Jan 31 – Mar 7 Sep 4 – Sep 21 Feb 18–23
Athens, GA 估算 8a Feb 15 – Mar 22 Aug 19 – Sep 5 Feb 18–23
Atlanta, GA 8b Feb 1 – Mar 8 Sep 1 – Sep 18 Feb 18–23
Columbus, GA 估算 8b Feb 6 – Mar 13 Aug 25 – Sep 11 Feb 18–23
Johns Creek, GA 估算 8a Feb 18 – Mar 25 Aug 17 – Sep 3 Feb 18–23
Macon, GA 估算 8b Feb 6 – Mar 13 Aug 24 – Sep 10 Feb 18–23
Roswell, GA 估算 8a Feb 18 – Mar 25 Aug 17 – Sep 3 Feb 18–23
Sandy Springs, GA 估算 8a Feb 11 – Mar 18 Aug 22 – Sep 8 Feb 18–23
Savannah, GA 9a Jan 19 – Feb 23 Sep 11 – Sep 28 Jan 19–24
South Fulton, GA 估算 8a Feb 15 – Mar 22 Aug 18 – Sep 4 Feb 18–23
Boise, ID 7b Mar 13 – Apr 17 Aug 2 – Aug 19 Mar 19–24
Lewiston, ID 7b Feb 23 – Mar 30 Aug 7 – Aug 24 Feb 23, Mar 19–23
Meridian, ID 估算 7a Mar 26 – Apr 30 Jul 22 – Aug 8 Apr 18–22
Nampa, ID 估算 7a Mar 14 – Apr 18 Jul 26 – Aug 12 Mar 19–24
Pocatello, ID 6a Apr 11 – May 16 Jun 30 – Jul 17 Apr 18–22
Aurora, IL 估算 5b Mar 12 – Apr 16 Aug 1 – Aug 18 Mar 19–24
Champaign, IL 估算 6a Mar 9 – Apr 13 Jul 30 – Aug 16 Mar 19–24
Chicago, IL 6a Mar 5 – Apr 9 Aug 9 – Aug 26 Mar 19–24
Cicero, IL 估算 6a Mar 6 – Apr 10 Aug 7 – Aug 24 Mar 19–24
Elgin, IL 估算 5b Mar 16 – Apr 20 Jul 30 – Aug 16 Mar 19–24
Joliet, IL 估算 5b Mar 12 – Apr 16 Aug 1 – Aug 18 Mar 19–24
Naperville, IL 估算 5b Mar 12 – Apr 16 Aug 1 – Aug 18 Mar 19–24
Near North Side, IL 估算 6a Mar 6 – Apr 10 Aug 7 – Aug 24 Mar 19–24
North Peoria, IL 估算 5b Mar 9 – Apr 13 Jul 31 – Aug 17 Mar 19–24
Peoria, IL 估算 5b Mar 9 – Apr 13 Jul 31 – Aug 17 Mar 19–24
Rockford, IL 估算 5b Mar 16 – Apr 20 Jul 25 – Aug 11 Mar 19–24
Springfield, IL 估算 6a Mar 3 – Apr 7 Aug 2 – Aug 19 Mar 19–24
Waukegan, IL 估算 6a Mar 13 – Apr 17 Aug 4 – Aug 21 Mar 19–24
West Town, IL 估算 6a Mar 6 – Apr 10 Aug 7 – Aug 24 Mar 19–24
Bloomington, IN 估算 6a Mar 6 – Apr 10 Aug 3 – Aug 20 Mar 19–24
Carmel, IN 估算 6a Mar 6 – Apr 10 Aug 5 – Aug 22 Mar 19–24
Evansville, IN 7a Feb 21 – Mar 28 Aug 10 – Aug 27 Feb 21–23, Mar 19–21
Fort Wayne, IN 估算 6a Mar 17 – Apr 21 Jul 29 – Aug 15 Mar 19–24
Indianapolis, IN 6b Mar 1 – Apr 5 Aug 10 – Aug 27 Mar 19–24
South Bend, IN 估算 6a Mar 17 – Apr 21 Aug 1 – Aug 18 Mar 19–24
Cedar Rapids, IA 估算 5a Mar 20 – Apr 24 Jul 20 – Aug 6 Mar 20–24, Apr 18
Davenport, IA 估算 5b Mar 12 – Apr 16 Jul 28 – Aug 14 Mar 19–24
Des Moines, IA 5b Mar 7 – Apr 11 Aug 1 – Aug 18 Mar 19–24
Dodge City, KS 6b Mar 10 – Apr 14 Aug 1 – Aug 18 Mar 19–24
Goodland, KS 6a Mar 21 – Apr 25 Jul 23 – Aug 9 Mar 21–24, Apr 18–19
Kansas City, KS 估算 6b Mar 3 – Apr 7 Aug 5 – Aug 22 Mar 19–24
Lawrence, KS 估算 6b Mar 3 – Apr 7 Aug 5 – Aug 22 Mar 19–24
Olathe, KS 估算 6b Feb 28 – Apr 4 Aug 8 – Aug 25 Mar 19–24
Overland Park, KS 估算 6b Feb 28 – Apr 4 Aug 8 – Aug 25 Mar 19–24
Topeka, KS 估算 6b Mar 5 – Apr 9 Aug 2 – Aug 19 Mar 19–24
Wichita, KS 估算 7a Mar 1 – Apr 5 Aug 7 – Aug 24 Mar 19–24
Lexington, KY 7a Mar 2 – Apr 6 Aug 9 – Aug 26 Mar 19–24
Lexington-Fayette, KY 估算 6b Mar 5 – Apr 9 Aug 5 – Aug 22 Mar 19–24
Louisville, KY 估算 7a Feb 26 – Apr 2 Aug 11 – Aug 28 Mar 19–24
Meads, KY 估算 6b Mar 10 – Apr 14 Aug 3 – Aug 20 Mar 19–24
Baton Rouge, LA 9a Jan 14 – Feb 18 Sep 7 – Sep 24 Jan 19–24
Lafayette, LA 估算 9a Jan 10 – Feb 14 Sep 12 – Sep 29 Jan 19–24
Shreveport, LA 8b Jan 17 – Feb 21 Sep 5 – Sep 22 Jan 19–24
Bangor, ME 估算 5a Mar 26 – Apr 30 Jul 16 – Aug 2 Apr 18–22
Caribou, ME 4b Mar 26 – Apr 30 Jul 13 – Jul 30 Apr 18–22
Lewiston, ME 估算 5b Mar 23 – Apr 27 Jul 20 – Aug 6 Mar 23–24, Apr 18–21
Portland, ME 6a Mar 15 – Apr 19 Jul 27 – Aug 13 Mar 19–24
Baltimore, MD 估算 7b Feb 26 – Apr 2 Aug 15 – Sep 1 Mar 19–24
Columbia, MD 估算 7b Feb 26 – Apr 2 Aug 15 – Sep 1 Mar 19–24
Germantown, MD 估算 7b Feb 28 – Apr 4 Aug 11 – Aug 28 Mar 19–24
Boston, MA 7a Feb 21 – Mar 28 Aug 21 – Sep 7 Feb 21–23, Mar 19–21
Brockton, MA 估算 6b Mar 13 – Apr 17 Jul 29 – Aug 15 Mar 19–24
Cambridge, MA 估算 6b Mar 13 – Apr 17 Jul 29 – Aug 15 Mar 19–24
Dorchester, MA 估算 6b Mar 13 – Apr 17 Jul 29 – Aug 15 Mar 19–24
Fall River, MA 估算 7a Mar 7 – Apr 11 Aug 5 – Aug 22 Mar 19–24
Lowell, MA 估算 6a Mar 17 – Apr 21 Jul 25 – Aug 11 Mar 19–24
Lynn, MA 估算 7a Mar 8 – Apr 12 Aug 5 – Aug 22 Mar 19–24
New Bedford, MA 估算 7a Mar 10 – Apr 14 Aug 4 – Aug 21 Mar 19–24
Newton, MA 估算 6b Mar 13 – Apr 17 Jul 29 – Aug 15 Mar 19–24
Quincy, MA 估算 6b Mar 13 – Apr 17 Jul 29 – Aug 15 Mar 19–24
South Boston, MA 估算 6b Mar 13 – Apr 17 Jul 29 – Aug 15 Mar 19–24
Springfield, MA 估算 6a Mar 24 – Apr 28 Jul 21 – Aug 7 Mar 24, Apr 18–22
Worcester, MA 估算 6b Mar 18 – Apr 22 Jul 24 – Aug 10 Mar 19–24
Ann Arbor, MI 估算 6a Mar 21 – Apr 25 Jul 24 – Aug 10 Mar 21–24, Apr 18–19
Canton, MI 估算 6b Mar 15 – Apr 19 Aug 2 – Aug 19 Mar 19–24
Clinton Township, MI 估算 6a Mar 20 – Apr 24 Aug 1 – Aug 18 Mar 20–24, Apr 18
Dearborn, MI 估算 6b Mar 15 – Apr 19 Aug 2 – Aug 19 Mar 19–24
Detroit, MI 估算 6b Mar 15 – Apr 19 Aug 2 – Aug 19 Mar 19–24
Detroit City, MI 6b Mar 10 – Apr 14 Aug 12 – Aug 29 Mar 19–24
Flint, MI 估算 6a Mar 23 – Apr 27 Jul 24 – Aug 10 Mar 23–24, Apr 18–21
Grand Rapids, MI 估算 6a Mar 23 – Apr 27 Jul 26 – Aug 12 Mar 23–24, Apr 18–21
Lansing, MI 估算 6a Mar 20 – Apr 24 Jul 27 – Aug 13 Mar 20–24, Apr 18
Livonia, MI 估算 6b Mar 15 – Apr 19 Aug 2 – Aug 19 Mar 19–24
Marquette, MI 6a Mar 27 – May 1 Aug 2 – Aug 19 Apr 18–22
Sterling Heights, MI 估算 6a Mar 21 – Apr 25 Jul 28 – Aug 14 Mar 21–24, Apr 18–19
Troy, MI 估算 6a Mar 21 – Apr 25 Jul 28 – Aug 14 Mar 21–24, Apr 18–19
Warren, MI 估算 6b Mar 15 – Apr 19 Aug 2 – Aug 19 Mar 19–24
Bloomington, MN 估算 5a Mar 16 – Apr 20 Jul 24 – Aug 10 Mar 19–24
Duluth, MN 5a Apr 2 – May 7 Jul 24 – Aug 10 Apr 18–22
Minneapolis, MN 估算 5a Mar 16 – Apr 20 Jul 24 – Aug 10 Mar 19–24
Minneapolis-St. Paul, MN 5a Mar 12 – Apr 16 Jul 30 – Aug 16 Mar 19–24
Rochester, MN 估算 4b Mar 21 – Apr 25 Jul 19 – Aug 5 Mar 21–24, Apr 18–19
Saint Paul, MN 估算 5a Mar 16 – Apr 20 Jul 24 – Aug 10 Mar 19–24
Gulfport, MS 估算 9a Jan 7 – Feb 11 Sep 17 – Oct 4 Jan 19–24
Jackson, MS 8b Jan 31 – Mar 7 Aug 26 – Sep 12 Feb 18–23
West Gulfport, MS 估算 9a Jan 7 – Feb 11 Sep 17 – Oct 4 Jan 19–24
Columbia, MO 估算 6b Feb 26 – Apr 2 Aug 8 – Aug 25 Mar 19–24
East Independence, MO 估算 6a Mar 4 – Apr 8 Aug 3 – Aug 20 Mar 19–24
Independence, MO 估算 6a Mar 4 – Apr 8 Aug 3 – Aug 20 Mar 19–24
Kansas City, MO 6b Mar 2 – Apr 6 Aug 5 – Aug 22 Mar 19–24
Lee's Summit, MO 估算 6b Feb 28 – Apr 4 Aug 7 – Aug 24 Mar 19–24
O'Fallon, MO 估算 6b Feb 27 – Apr 3 Aug 7 – Aug 24 Mar 19–24
Springfield, MO 估算 6b Mar 2 – Apr 6 Aug 4 – Aug 21 Mar 19–24
St. Louis, MO 估算 7a Feb 22 – Mar 29 Aug 11 – Aug 28 Feb 22–23, Mar 19–22
Billings, MT 5b Mar 23 – Apr 27 Jul 19 – Aug 5 Mar 23–24, Apr 18–21
Bozeman, MT 5a Apr 11 – May 16 Jul 5 – Jul 22 Apr 18–22
Butte, MT 估算 4b Apr 24 – May 29 Jun 23 – Jul 10 May 17–22
Great Falls, MT 估算 4b Apr 5 – May 10 Jul 6 – Jul 23 Apr 18–22
Missoula, MT 5b Apr 4 – May 9 Jul 8 – Jul 25 Apr 18–22
Bellevue, NE 估算 5b Mar 9 – Apr 13 Jul 29 – Aug 15 Mar 19–24
Lincoln, NE 估算 6a Mar 12 – Apr 16 Jul 26 – Aug 12 Mar 19–24
North Platte, NE 5b Mar 30 – May 4 Jul 13 – Jul 30 Apr 18–22
Omaha, NE 5b Mar 7 – Apr 11 Aug 2 – Aug 19 Mar 19–24
Scottsbluff, NE 5a Mar 24 – Apr 28 Jul 16 – Aug 2 Mar 24, Apr 18–22
Elko, NV 5b Apr 17 – May 22 Jun 30 – Jul 17 Apr 18–22, May 17
Enterprise, NV 估算 9a Jan 11 – Feb 15 Sep 6 – Sep 23 Jan 19–24
Henderson, NV 估算 9b Dec 21 – Jan 25 Sep 20 – Oct 7 Dec 21–26
Las Vegas, NV 9b Dec 13 – Jan 17 Sep 21 – Oct 8 Dec 20–25
North Las Vegas, NV 估算 9a Jan 11 – Feb 15 Sep 6 – Sep 23 Jan 19–24
Paradise, NV 估算 9a Jan 11 – Feb 15 Sep 6 – Sep 23 Jan 19–24
Reno, NV 7b Mar 9 – Apr 13 Aug 4 – Aug 21 Mar 19–24
Sparks, NV 估算 7a Mar 24 – Apr 28 Jul 27 – Aug 13 Mar 24, Apr 18–22
Spring Valley, NV 估算 9a Jan 11 – Feb 15 Sep 6 – Sep 23 Jan 19–24
Sunrise Manor, NV 估算 9a Jan 11 – Feb 15 Sep 6 – Sep 23 Jan 19–24
Concord, NH 5b Mar 27 – May 1 Jul 15 – Aug 1 Apr 18–22
Manchester, NH 估算 6a Mar 17 – Apr 21 Jul 25 – Aug 11 Mar 19–24
Nashua, NH 估算 6a Mar 17 – Apr 21 Jul 25 – Aug 11 Mar 19–24
Atlantic City, NJ 7a Mar 7 – Apr 11 Aug 10 – Aug 27 Mar 19–24
Clifton, NJ 估算 7a Feb 28 – Apr 4 Aug 13 – Aug 30 Mar 19–24
Edison, NJ 估算 7a Feb 28 – Apr 4 Aug 13 – Aug 30 Mar 19–24
Elizabeth, NJ 估算 7a Feb 28 – Apr 4 Aug 13 – Aug 30 Mar 19–24
Jersey City, NJ 估算 7a Feb 28 – Apr 4 Aug 13 – Aug 30 Mar 19–24
Newark, NJ 估算 7a Feb 28 – Apr 4 Aug 13 – Aug 30 Mar 19–24
Paterson, NJ 估算 7a Feb 28 – Apr 4 Aug 13 – Aug 30 Mar 19–24
Toms River, NJ 估算 7b Mar 4 – Apr 8 Aug 11 – Aug 28 Mar 19–24
Trenton, NJ 估算 7a Mar 5 – Apr 9 Aug 8 – Aug 25 Mar 19–24
Albuquerque, NM 8a Feb 23 – Mar 30 Aug 15 – Sep 1 Feb 23, Mar 19–23
Enchanted Hills, NM 估算 7b Mar 9 – Apr 13 Aug 3 – Aug 20 Mar 19–24
Las Cruces, NM 估算 8b Feb 6 – Mar 13 Aug 24 – Sep 10 Feb 18–23
Rio Rancho, NM 估算 7b Mar 9 – Apr 13 Aug 3 – Aug 20 Mar 19–24
Roswell, NM 7b Mar 2 – Apr 6 Aug 11 – Aug 28 Mar 19–24
Santa Fe, NM 7a Mar 23 – Apr 27 Jul 27 – Aug 13 Mar 23–24, Apr 18–21
Albany, NY 6a Mar 16 – Apr 20 Jul 27 – Aug 13 Mar 19–24
Amherst, NY 估算 6a Mar 22 – Apr 26 Jul 29 – Aug 15 Mar 22–24, Apr 18–20
Borough Park, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Buffalo, NY 估算 6a Mar 22 – Apr 26 Jul 29 – Aug 15 Mar 22–24, Apr 18–20
Bushwick, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Canarsie, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Chinatown, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Corona, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
East Flatbush, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
East Harlem, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
East New York, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Elmhurst, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Flatbush, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Fordham, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Gravesend, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Greenburgh, NY 估算 7a Mar 10 – Apr 14 Aug 4 – Aug 21 Mar 19–24
Jamaica, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
New York City, NY 估算 7a Feb 28 – Apr 4 Aug 13 – Aug 30 Mar 19–24
Richmond Hill, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Rochester, NY 估算 6b Mar 16 – Apr 20 Aug 3 – Aug 20 Mar 19–24
Sheepshead Bay, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Sunset Park, NY 估算 7a Feb 28 – Apr 4 Aug 13 – Aug 30 Mar 19–24
Syracuse, NY 6a Mar 18 – Apr 22 Jul 31 – Aug 17 Mar 19–24
Upper West Side, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
West Albany, NY 估算 6a Mar 19 – Apr 23 Jul 25 – Aug 11 Mar 19–24
Yonkers, NY 估算 7b Feb 19 – Mar 26 Aug 25 – Sep 11 Feb 19–23, Mar 19
Asheville, NC 7b Feb 26 – Apr 2 Aug 9 – Aug 26 Mar 19–24
Cary, NC 估算 8a Feb 18 – Mar 25 Aug 17 – Sep 3 Feb 18–23
Charlotte, NC 估算 8a Feb 16 – Mar 23 Aug 16 – Sep 2 Feb 18–23
Concord, NC 估算 8a Feb 16 – Mar 23 Aug 16 – Sep 2 Feb 18–23
Durham, NC 估算 8a Feb 18 – Mar 25 Aug 17 – Sep 3 Feb 18–23
Fayetteville, NC 估算 8a Feb 15 – Mar 22 Aug 19 – Sep 5 Feb 18–23
Greensboro, NC 估算 8a Feb 19 – Mar 26 Aug 16 – Sep 2 Feb 19–23, Mar 19
Greenville, NC 估算 8a Feb 12 – Mar 19 Aug 22 – Sep 8 Feb 18–23
High Point, NC 估算 8a Feb 22 – Mar 29 Aug 12 – Aug 29 Feb 22–23, Mar 19–22
Raleigh, NC 估算 8a Feb 18 – Mar 25 Aug 17 – Sep 3 Feb 18–23
Roanoke Rapids, NC 8a Feb 13 – Mar 20 Aug 24 – Sep 10 Feb 18–23
West Raleigh, NC 估算 8a Feb 18 – Mar 25 Aug 17 – Sep 3 Feb 18–23
Wilmington, NC 估算 8b Feb 10 – Mar 17 Aug 26 – Sep 12 Feb 18–23
Winston-Salem, NC 估算 7b Feb 26 – Apr 2 Aug 11 – Aug 28 Mar 19–24
Bismarck, ND 4b Mar 29 – May 3 Jul 12 – Jul 29 Apr 18–22
Fargo, ND 4a Mar 29 – May 3 Jul 12 – Jul 29 Apr 18–22
Grand Forks, ND 估算 4a Mar 30 – May 4 Jul 11 – Jul 28 Apr 18–22
Minot, ND 估算 4a Apr 1 – May 6 Jul 10 – Jul 27 Apr 18–22
Williston, ND 4a Apr 9 – May 14 Jul 3 – Jul 20 Apr 18–22
Akron, OH 估算 6b Mar 13 – Apr 17 Aug 7 – Aug 24 Mar 19–24
Cincinnati, OH 估算 6b Mar 9 – Apr 13 Aug 4 – Aug 21 Mar 19–24
Cleveland, OH 估算 6b Mar 13 – Apr 17 Aug 7 – Aug 24 Mar 19–24
Columbus, OH 估算 6b Mar 13 – Apr 17 Aug 1 – Aug 18 Mar 19–24
Dayton, OH 6a Mar 5 – Apr 9 Aug 9 – Aug 26 Mar 19–24
Toledo, OH 6b Mar 11 – Apr 15 Aug 5 – Aug 22 Mar 19–24
Broken Arrow, OK 估算 7b Feb 19 – Mar 26 Aug 14 – Aug 31 Feb 19–23, Mar 19
Cheyenne, OK 7b Feb 20 – Mar 27 Aug 15 – Sep 1 Feb 20–23, Mar 19–20
Edmond, OK 估算 7b Feb 21 – Mar 28 Aug 14 – Aug 31 Feb 21–23, Mar 19–21
Lawton, OK 估算 7b Feb 17 – Mar 24 Aug 16 – Sep 2 Feb 18–23
Norman, OK 估算 7b Feb 18 – Mar 25 Aug 16 – Sep 2 Feb 18–23
Oklahoma City, OK 7b Feb 19 – Mar 26 Aug 16 – Sep 2 Feb 19–23, Mar 19
Tulsa, OK 估算 7b Feb 19 – Mar 26 Aug 14 – Aug 31 Feb 19–23, Mar 19
Beaverton, OR 估算 8b Feb 6 – Mar 13 Aug 27 – Sep 13 Feb 18–23
Bend, OR 估算 6b Apr 20 – May 25 Jul 3 – Jul 20 Apr 20–22, May 17–19
Burns, OR 5b Apr 30 – Jun 4 Jun 18 – Jul 5 May 17–22
Eugene, OR 8b Feb 28 – Apr 4 Aug 4 – Aug 21 Mar 19–24
Gresham, OR 估算 8b Feb 24 – Mar 31 Aug 18 – Sep 4 Mar 19–24
Hillsboro, OR 估算 8b Feb 22 – Mar 29 Aug 16 – Sep 2 Feb 22–23, Mar 19–22
Medford, OR 8b Feb 25 – Apr 1 Aug 10 – Aug 27 Mar 19–24
Portland, OR 9a Jan 30 – Mar 6 Aug 31 – Sep 17 Feb 18–23
Salem, OR 估算 8b Mar 4 – Apr 8 Aug 13 – Aug 30 Mar 19–24
Allentown, PA 估算 6b Mar 14 – Apr 18 Jul 31 – Aug 17 Mar 19–24
Erie, PA 7a Mar 15 – Apr 19 Aug 16 – Sep 2 Mar 19–24
Philadelphia, PA 7b Feb 19 – Mar 26 Aug 22 – Sep 8 Feb 19–23, Mar 19
Pittsburgh, PA 7a Mar 7 – Apr 11 Aug 9 – Aug 26 Mar 19–24
Reading, PA 估算 7a Mar 7 – Apr 11 Aug 6 – Aug 23 Mar 19–24
Providence, RI 估算 7a Mar 7 – Apr 11 Aug 5 – Aug 22 Mar 19–24
Warwick, RI 估算 7a Mar 7 – Apr 11 Aug 5 – Aug 22 Mar 19–24
Charleston, SC 9a Jan 24 – Feb 28 Sep 8 – Sep 25 Jan 24, Feb 18–22
Columbia, SC 估算 8a Feb 15 – Mar 22 Aug 19 – Sep 5 Feb 18–23
North Charleston, SC 估算 9a Jan 18 – Feb 22 Sep 16 – Oct 3 Jan 19–24
Aberdeen, SD 估算 4a Mar 26 – Apr 30 Jul 12 – Jul 29 Apr 18–22
Brookings, SD 估算 4b Mar 24 – Apr 28 Jul 14 – Jul 31 Mar 24, Apr 18–22
Rapid City, SD 5a Mar 31 – May 5 Jul 13 – Jul 30 Apr 18–22
Sioux Falls, SD 5a Mar 15 – Apr 19 Jul 25 – Aug 11 Mar 19–24
Brownsville, TN 8a Feb 15 – Mar 22 Aug 17 – Sep 3 Feb 18–23
Chattanooga, TN 8a Feb 10 – Mar 17 Aug 21 – Sep 7 Feb 18–23
Clarksville, TN 估算 7a Feb 24 – Mar 31 Aug 10 – Aug 27 Mar 19–24
East Chattanooga, TN 估算 7b Feb 19 – Mar 26 Aug 14 – Aug 31 Feb 19–23, Mar 19
Franklin, TN 7b Feb 20 – Mar 27 Aug 12 – Aug 29 Feb 20–23, Mar 19–20
Knoxville, TN 7b Feb 18 – Mar 25 Aug 14 – Aug 31 Feb 18–23
Memphis, TN 8a Feb 2 – Mar 9 Aug 28 – Sep 14 Feb 18–23
Murfreesboro, TN 估算 7b Feb 28 – Apr 4 Aug 6 – Aug 23 Mar 19–24
Nashville, TN 7b Feb 17 – Mar 24 Aug 15 – Sep 1 Feb 18–23
New South Memphis, TN 估算 8a Feb 7 – Mar 14 Aug 21 – Sep 7 Feb 18–23
Smyrna, TN 7b Mar 2 – Apr 6 Aug 2 – Aug 19 Mar 19–24
Abilene, TX 估算 8a Feb 14 – Mar 21 Aug 19 – Sep 5 Feb 18–23
Alief, TX 估算 9b Jan 2 – Feb 6 Sep 21 – Oct 8 Jan 19–24
Allen, TX 估算 8b Feb 2 – Mar 9 Aug 28 – Sep 14 Feb 18–23
Amarillo, TX 7a Mar 4 – Apr 8 Aug 10 – Aug 27 Mar 19–24
Arlington, TX 估算 8b Jan 28 – Mar 4 Aug 31 – Sep 17 Feb 18–23
Austin, TX 9a Jan 29 – Mar 5 Aug 28 – Sep 14 Feb 18–23
Beaumont, TX 估算 9a Jan 13 – Feb 17 Sep 10 – Sep 27 Jan 19–24
Carrollton, TX 估算 8b Jan 27 – Mar 3 Sep 1 – Sep 18 Feb 18–23
College Station, TX 估算 9a Jan 22 – Feb 26 Sep 4 – Sep 21 Jan 22–24, Feb 18–20
Corpus Christi, TX 10a Dec 4 – Jan 8 Oct 11 – Oct 28 Dec 20–25
Cypress, TX 估算 9b Jan 2 – Feb 6 Sep 21 – Oct 8 Jan 19–24
Dallas, TX 估算 8b Jan 27 – Mar 3 Sep 1 – Sep 18 Feb 18–23
Denton, TX 估算 8a Feb 6 – Mar 13 Aug 25 – Sep 11 Feb 18–23
El Paso, TX 8b Jan 19 – Feb 23 Sep 1 – Sep 18 Jan 19–24
Fort Worth, TX 估算 8b Jan 28 – Mar 4 Aug 31 – Sep 17 Feb 18–23
Frisco, TX 估算 8b Feb 2 – Mar 9 Aug 28 – Sep 14 Feb 18–23
Garland, TX 估算 8b Jan 27 – Mar 3 Sep 1 – Sep 18 Feb 18–23
Grand Prairie, TX 估算 8b Jan 27 – Mar 3 Sep 1 – Sep 18 Feb 18–23
Houston, TX 9b Jan 2 – Feb 6 Sep 20 – Oct 7 Jan 19–24
Irving, TX 估算 8b Jan 27 – Mar 3 Sep 1 – Sep 18 Feb 18–23
Killeen, TX 估算 8b Jan 30 – Mar 6 Aug 29 – Sep 15 Feb 18–23
Laredo, TX 估算 9b Dec 24 – Jan 28 Sep 25 – Oct 12 Dec 24–26, Jan 19–21
League City, TX 估算 9b Dec 26 – Jan 30 Sep 28 – Oct 15 Dec 26, Jan 19–23
Lewisville, TX 估算 8b Feb 2 – Mar 9 Aug 28 – Sep 14 Feb 18–23
Lubbock, TX 7b Feb 10 – Mar 17 Aug 23 – Sep 9 Feb 18–23
McKinney, TX 估算 8b Feb 2 – Mar 9 Aug 28 – Sep 14 Feb 18–23
Mesquite, TX 估算 8b Jan 27 – Mar 3 Sep 1 – Sep 18 Feb 18–23
Midland, TX 8a Feb 12 – Mar 19 Aug 21 – Sep 7 Feb 18–23
Odessa, TX 估算 8a Feb 4 – Mar 11 Aug 25 – Sep 11 Feb 18–23
Paducah, TX 8a Feb 22 – Mar 29 Aug 15 – Sep 1 Feb 22–23, Mar 19–22
Pasadena, TX 估算 9b Dec 26 – Jan 30 Sep 28 – Oct 15 Dec 26, Jan 19–23
Pearland, TX 估算 9b Dec 26 – Jan 30 Sep 28 – Oct 15 Dec 26, Jan 19–23
Plano, TX 估算 8b Feb 2 – Mar 9 Aug 28 – Sep 14 Feb 18–23
Richardson, TX 估算 8b Jan 27 – Mar 3 Sep 1 – Sep 18 Feb 18–23
Round Rock, TX 估算 8b Jan 26 – Mar 2 Sep 2 – Sep 19 Feb 18–23
San Angelo, TX 估算 8a Feb 13 – Mar 20 Aug 19 – Sep 5 Feb 18–23
San Antonio, TX 9a Jan 15 – Feb 19 Sep 9 – Sep 26 Jan 19–24
Sugar Land, TX 估算 9b Jan 2 – Feb 6 Sep 21 – Oct 8 Jan 19–24
The Woodlands, TX 估算 9a Jan 14 – Feb 18 Sep 11 – Sep 28 Jan 19–24
Tyler, TX 估算 8b Jan 29 – Mar 5 Aug 30 – Sep 16 Feb 18–23
Waco, TX 估算 8b Feb 1 – Mar 8 Aug 27 – Sep 13 Feb 18–23
Wichita Falls, TX 8a Feb 12 – Mar 19 Aug 21 – Sep 7 Feb 18–23
Ogden, UT 估算 6a Apr 1 – May 6 Jul 16 – Aug 2 Apr 18–22
Orem, UT 估算 7a Mar 19 – Apr 23 Jul 26 – Aug 12 Mar 19–24
Provo, UT 估算 7a Mar 19 – Apr 23 Jul 26 – Aug 12 Mar 19–24
Salt Lake City, UT 7b Feb 25 – Apr 1 Aug 12 – Aug 29 Mar 19–24
Sandy, UT 估算 6b Mar 30 – May 4 Jul 20 – Aug 6 Apr 18–22
Sandy Hills, UT 估算 6b Mar 30 – May 4 Jul 20 – Aug 6 Apr 18–22
West Jordan, UT 估算 6b Mar 30 – May 4 Jul 20 – Aug 6 Apr 18–22
West Valley City, UT 估算 7a Mar 8 – Apr 12 Aug 5 – Aug 22 Mar 19–24
Burlington, VT 5a Mar 18 – Apr 22 Jul 27 – Aug 13 Mar 19–24
Colchester, VT 估算 5a Mar 24 – Apr 28 Jul 22 – Aug 8 Mar 24, Apr 18–22
South Burlington, VT 估算 5a Mar 25 – Apr 29 Jul 21 – Aug 7 Apr 18–22
Alexandria, VA 估算 7b Feb 24 – Mar 31 Aug 14 – Aug 31 Mar 19–24
Arlington, VA 估算 7b Feb 24 – Mar 31 Aug 14 – Aug 31 Mar 19–24
Chesapeake, VA 估算 8a Feb 12 – Mar 19 Aug 27 – Sep 13 Feb 18–23
East Hampton, VA 估算 8b Feb 10 – Mar 17 Aug 29 – Sep 15 Feb 18–23
Hampton, VA 估算 8b Feb 10 – Mar 17 Aug 29 – Sep 15 Feb 18–23
Newport News, VA 估算 8a Feb 12 – Mar 19 Aug 27 – Sep 13 Feb 18–23
Norfolk, VA 8b Feb 3 – Mar 10 Sep 4 – Sep 21 Feb 18–23
Portsmouth, VA 估算 8a Feb 12 – Mar 19 Aug 27 – Sep 13 Feb 18–23
Portsmouth Heights, VA 估算 8a Feb 12 – Mar 19 Aug 27 – Sep 13 Feb 18–23
Richmond, VA 7b Feb 20 – Mar 27 Aug 16 – Sep 2 Feb 20–23, Mar 19–20
Roanoke, VA 估算 7b Mar 1 – Apr 5 Aug 9 – Aug 26 Mar 19–24
Suffolk, VA 估算 8a Feb 23 – Mar 30 Aug 17 – Sep 3 Feb 23, Mar 19–23
Virginia Beach, VA 估算 8b Feb 4 – Mar 11 Sep 3 – Sep 20 Feb 18–23
Bellevue, WA 估算 9a Feb 6 – Mar 13 Aug 25 – Sep 11 Feb 18–23
Bellingham, WA 估算 8a Feb 22 – Mar 29 Aug 12 – Aug 29 Feb 22–23, Mar 19–22
Everett, WA 估算 9a Feb 6 – Mar 13 Aug 25 – Sep 11 Feb 18–23
Federal Way, WA 估算 8b Feb 14 – Mar 21 Aug 20 – Sep 6 Feb 18–23
Kent, WA 估算 8b Feb 14 – Mar 21 Aug 20 – Sep 6 Feb 18–23
Kirkland, WA 估算 9a Feb 6 – Mar 13 Aug 25 – Sep 11 Feb 18–23
Olympia, WA 8a Mar 18 – Apr 22 Jul 26 – Aug 12 Mar 19–24
Pasco, WA 7b Mar 16 – Apr 20 Jul 23 – Aug 9 Mar 19–24
Renton, WA 估算 8b Feb 14 – Mar 21 Aug 20 – Sep 6 Feb 18–23
Seattle, WA 9a Jan 19 – Feb 23 Sep 4 – Sep 21 Jan 19–24
Spokane, WA 6b Mar 15 – Apr 19 Jul 24 – Aug 10 Mar 19–24
Spokane Valley, WA 估算 6b Mar 26 – Apr 30 Jul 13 – Jul 30 Apr 18–22
Tacoma, WA 估算 8b Feb 14 – Mar 21 Aug 20 – Sep 6 Feb 18–23
Tri-Cities, WA 估算 7b Mar 3 – Apr 7 Aug 2 – Aug 19 Mar 19–24
Vancouver, WA 估算 8b Feb 22 – Mar 29 Aug 16 – Sep 2 Feb 22–23, Mar 19–22
Yakima, WA 7a Mar 27 – May 1 Jul 16 – Aug 2 Apr 18–22
Beckley, WV 6b Mar 11 – Apr 15 Aug 2 – Aug 19 Mar 19–24
Charleston, WV 7a Mar 5 – Apr 9 Aug 7 – Aug 24 Mar 19–24
Huntington, WV 估算 7a Mar 5 – Apr 9 Aug 8 – Aug 25 Mar 19–24
Parkersburg, WV 估算 6b Mar 13 – Apr 17 Aug 3 – Aug 20 Mar 19–24
Green Bay, WI 5b Mar 26 – Apr 30 Jul 21 – Aug 7 Apr 18–22
Kenosha, WI 估算 6a Mar 14 – Apr 18 Aug 2 – Aug 19 Mar 19–24
Madison, WI 估算 5a Mar 20 – Apr 24 Jul 22 – Aug 8 Mar 20–24, Apr 18
Milwaukee, WI 估算 6a Mar 16 – Apr 20 Aug 1 – Aug 18 Mar 19–24
Casper, WY 5a Apr 14 – May 19 Jul 4 – Jul 21 Apr 18–22, May 17
Cheyenne, WY 估算 5b Apr 5 – May 10 Jul 9 – Jul 26 Apr 18–22
Gillette, WY 估算 5a Apr 8 – May 13 Jul 8 – Jul 25 Apr 18–22
一句话总结：终霜日期是 50% 的概率——有一半的年份会在这之后还结霜。 Spinach 属于 hardy，所以 轻微的晚霜还扛得住，但在又冷又湿的土里别硬来。

别错过 spinach 的种植窗口

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这些数据到底有多准？

Extension recommendations for the same crop routinely disagree by two to four weeks, and occasionally more, so these offsets should be presented as windows and starting points rather than deadlines. Three things drive the spread. (1) Regional risk tolerance: for warm-season crops, Colorado State and Utah State put tomatoes, peppers and melons out about 14 days after the last frost, while University of Missouri's calendar works out to roughly 25-35 days after the last frost and University of Maryland's window runs from the frost date itself out to 45 days past it. That is a real 6-week spread for the single most popular garden crop, and it exists because a short-season mountain state is optimizing against a short season while a humid continental state is optimizing against cold, wet spring soil. (2) Soil temperature versus calendar date: most Extension services now say the honest trigger is soil temperature at 4 inches, not the frost date, and the frost-relative number is a convenience translation. A cold, wet spring can push the real date two or three weeks past the calendar recommendation. (3) Days-to-maturity is variety-specific and is measured differently for direct-seeded versus transplanted crops - seed catalogs count from transplant date for tomatoes, peppers, eggplant and cole crops, but from sowing for roots and greens - so a 'days to maturity' range of 60-85 for tomato is genuinely 60-85 depending on which packet you bought. Additionally, the average last frost is a 50% probability, meaning half of all years have a frost after that date; Extension services commonly advise waiting 1-2 weeks past it for anything frost-tender, or being prepared to cover. Treat every number here as plus or minus about 10-14 days.

其他作物

Tomato Pepper Eggplant Tomatillo Cucumber Zucchini / Summer Squash Winter Squash Pumpkin Watermelon Cantaloupe / Muskmelon Sweet Corn Green Beans (bush) Pole Beans Dry Beans Okra Sweet Potato Potato Onion (from sets/transplants) Garlic Leek Shallot Carrot Beet Radish Turnip Parsnip Lettuce (leaf) Lettuce (head) Kale Collards Swiss Chard Cabbage Broccoli Cauliflower Brussels Sprouts Kohlrabi Peas (English/snap) Asparagus (crowns) Strawberry (crowns) Basil Cilantro Parsley Dill Chives Oregano Thyme Sage Rosemary

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