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规划 › 种植时间 › Dill
种植时间

什么时候种 Dill

没有哪一个日期放之四海而皆准。Dill 的种植时间是相对你自己的终霜来定的，所以答案 从 December 23 （San Diego, CA） 一直排到 May 28 （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 14 天到终霜后 30 天
收获天数40–60
耐寒程度semi-hardy
最低土壤温度50 °F
传统月相娥眉月
值得一提：Direct sow only - Maryland lists dill with the herbs that do not transplant well because of the taproot. Succession-sow every 2-3 weeks; a single sowing bolts and is done. Self-seeds readily once established.

在你所在的城镇，什么时候种 dill

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

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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

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