Arizona · Maricopa County

Phoenix planting calendar, month by month

The low desert does not plant on a northern calendar. This is the University of Arizona Cooperative Extension's planting calendar for Maricopa County, laid out by month: 53 crops, each window as published. The busiest windows are October 1–14, November 1–14 and November 15–30 with 27 crops; the quietest are June 1–14 and June 15–30 with 6.

January

January 1–14

Asparagus — transplants
Beets — seeds
Bok choy — seeds
Broccoli — seeds or transplants
Cabbage — seeds or transplants
Chinese cabbage — seeds or transplants
Carrots — seeds
Cauliflower — seeds or transplants
Chard — seeds or transplants
Collard greens — seeds
Endive — seeds
Kohlrabi — transplants
Head lettuce — seeds or transplants
Leaf lettuce — seeds or transplants
Leeks — seeds
Mustard — seeds
Bulb onions — sets or cloves
Green onions — seeds
Peas — seeds
Potatoes — seeds
Radishes — seeds
Rutabagas — seeds
Spinach — seeds
Turnips — seeds

January 15–31

Globe artichokes — transplants
Jerusalem artichokes — transplants
Asparagus — transplants
Beets — seeds
Bok choy — seeds
Broccoli — transplants
Cabbage — transplants
Chinese cabbage — transplants
Carrots — seeds
Cauliflower — transplants
Chard — seeds or transplants
Collard greens — seeds
Endive — seeds
Kohlrabi — transplants
Head lettuce — seeds or transplants
Leaf lettuce — seeds or transplants
Leeks — seeds
Mustard — seeds
Bulb onions — sets or cloves
Green onions — seeds
Peas — seeds
Potatoes — seeds
Radishes — seeds
Rutabagas — seeds
Spinach — seeds
Turnips — seeds

February

February 1–14

Globe artichokes — transplants
Jerusalem artichokes — transplants
Asparagus — transplants
Beets — seeds
Bok choy — seeds
Carrots — seeds
Collard greens — seeds
Kohlrabi — transplants
Head lettuce — transplants
Leaf lettuce — seeds or transplants
Mustard — seeds
Bulb onions — sets or cloves
Green onions — seeds
Peas — seeds
Potatoes — seeds
Radishes — seeds
Spinach — seeds
Sunflower — seeds
Turnips — seeds

February 15–28

Globe artichokes — transplants
Jerusalem artichokes — transplants
Basil — seeds
Beets — seeds
Bok choy — seeds
Carrots — seeds
Collard greens — seeds
Sweet corn — seeds
Cucumbers — seeds
Armenian cucumbers — seeds
Leaf lettuce — transplants
Cantaloupe and honeydew melons — seeds
Watermelon — seeds
Mustard — seeds
Okra — seeds
Green onions — seeds
Peas — seeds
Peppers — transplants
Potatoes — seeds
Radishes — seeds
Spinach — seeds
Summer squash — seeds
Sunflower — seeds
Tomatoes — transplants
Turnips — seeds

March

March 1–14

Globe artichokes — transplants
Jerusalem artichokes — transplants
Basil — seeds or transplants
Beets — seeds
Carrots — seeds
Sweet corn — seeds
Cucumbers — seeds
Armenian cucumbers — seeds
Eggplant — transplants
Cantaloupe and honeydew melons — seeds
Watermelon — seeds
Okra — seeds
Green onions — seeds
Peppers — transplants
Potatoes — seeds
Sweet potatoes — transplants
Pumpkin — seeds
Radishes — seeds
Summer squash — seeds
Winter squash — seeds
Sunflower — seeds
Tomatoes — transplants

March 15–31

Globe artichokes — transplants
Jerusalem artichokes — transplants
Basil — seeds or transplants
Lima beans — seeds
Snap beans — seeds
Yardlong beans — seeds
Carrots — seeds
Sweet corn — seeds
Cucumbers — seeds
Armenian cucumbers — seeds
Eggplant — transplants
Cantaloupe and honeydew melons — seeds
Watermelon — seeds
Okra — seeds
Green onions — seeds
Peanuts — seeds
Peppers — transplants
Sweet potatoes — transplants
Pumpkin — seeds
Radishes — seeds
Summer squash — seeds
Winter squash — seeds
Sunflower — seeds
Tomatoes — transplants

April

April 1–14

Jerusalem artichokes — transplants
Basil — seeds or transplants
Lima beans — seeds
Snap beans — seeds
Yardlong beans — seeds
Black-eyed peas — seeds
Carrots — seeds
Sweet corn — seeds
Cucumbers — seeds
Armenian cucumbers — seeds
Cantaloupe and honeydew melons — seeds
Okra — seeds
Green onions — seeds
Peanuts — seeds
Sweet potatoes — transplants
Radishes — seeds
Summer squash — seeds
Sunflower — seeds

April 15–30

Jerusalem artichokes — transplants
Basil — seeds or transplants
Snap beans — seeds
Yardlong beans — seeds
Black-eyed peas — seeds
Carrots — seeds
Cucumbers — seeds
Armenian cucumbers — seeds
Cantaloupe and honeydew melons — seeds
Okra — seeds
Green onions — seeds
Peanuts — seeds
Sweet potatoes — transplants
Radishes — seeds
Sunflower — seeds

May

May 1–14

Jerusalem artichokes — transplants
Basil — seeds or transplants
Black-eyed peas — seeds
Armenian cucumbers — seeds
Cantaloupe and honeydew melons — seeds
Sweet potatoes — transplants
Sunflower — seeds

May 15–31

Jerusalem artichokes — transplants
Basil — seeds or transplants
Yardlong beans — seeds
Black-eyed peas — seeds
Armenian cucumbers — seeds
Cantaloupe and honeydew melons — seeds
Sweet potatoes — transplants
Sunflower — seeds

June

June 1–14

Yardlong beans — seeds
Black-eyed peas — seeds
Armenian cucumbers — seeds
Cantaloupe and honeydew melons — seeds
Sweet potatoes — transplants
Sunflower — seeds

June 15–30

Yardlong beans — seeds
Black-eyed peas — seeds
Armenian cucumbers — seeds
Cantaloupe and honeydew melons — seeds
Sweet potatoes — transplants
Sunflower — seeds

July

July 1–14

Yardlong beans — seeds
Black-eyed peas — seeds
Armenian cucumbers — seeds
Cantaloupe and honeydew melons — seeds
Shallots — sets or cloves
Peppers — transplants
Pumpkin — seeds
Winter squash — seeds
Sunflower — seeds

July 15–31

Pinto beans — seeds
Snap beans — seeds
Black-eyed peas — seeds
Sweet corn — seeds
Shallots — sets or cloves
Peppers — transplants
Pumpkin — seeds
Winter squash — seeds
Sunflower — seeds
Tomatoes — transplants

August

August 1–14

Snap beans — seeds
Black-eyed peas — seeds
Carrots — seeds
Sweet corn — seeds
Green onions — seeds
Pumpkin — seeds
Winter squash — seeds
Tomatoes — transplants

August 15–31

Snap beans — seeds
Black-eyed peas — seeds
Bok choy — seeds
Broccoli — seeds
Brussels sprouts — seeds
Cabbage — seeds
Chinese cabbage — seeds
Carrots — seeds
Cauliflower — seeds
Celery — seeds
Chard — seeds
Collard greens — seeds
Sweet corn — seeds
Cucumbers — seeds
Kale — seeds
Kohlrabi — seeds
Head lettuce — seeds
Leaf lettuce — seeds
Leeks — seeds
Mustard — seeds
Green onions — seeds
Summer squash — seeds
Turnips — seeds

September

September 1–14

Snap beans — seeds
Bok choy — seeds
Broccoli — seeds
Brussels sprouts — seeds or transplants
Cabbage — seeds
Chinese cabbage — seeds
Carrots — seeds
Cauliflower — seeds or transplants
Celery — seeds
Chard — seeds
Cucumbers — seeds
Endive — seeds
Kale — seeds
Kohlrabi — seeds
Head lettuce — seeds
Leaf lettuce — seeds
Leeks — seeds
Mustard — seeds
Green onions — seeds
Parsnips — seeds
Radishes — seeds
Rutabagas — seeds
Spinach — seeds
Summer squash — seeds
Turnips — seeds

September 15–30

Beets — seeds
Bok choy — seeds
Broccoli — seeds or transplants
Brussels sprouts — seeds or transplants
Cabbage — seeds or transplants
Chinese cabbage — seeds or transplants
Carrots — seeds
Cauliflower — seeds or transplants
Celery — seeds or transplants
Chard — seeds or transplants
Collard greens — seeds
Cucumbers — seeds
Endive — seeds
Kale — seeds
Kohlrabi — seeds
Head lettuce — seeds or transplants
Leaf lettuce — seeds or transplants
Leeks — seeds
Mustard — seeds
Green onions — seeds
Parsnips — seeds
Peas — seeds
Radishes — seeds
Rutabagas — seeds
Spinach — seeds
Turnips — seeds

October

October 1–14

Beets — seeds
Bok choy — seeds
Broccoli — seeds or transplants
Brussels sprouts — seeds or transplants
Cabbage — seeds or transplants
Chinese cabbage — seeds or transplants
Carrots — seeds
Cauliflower — seeds or transplants
Celery — seeds or transplants
Chard — seeds or transplants
Collard greens — seeds
Endive — seeds
Garlic — sets or cloves
Kale — seeds
Kohlrabi — seeds
Head lettuce — seeds or transplants
Leaf lettuce — seeds or transplants
Leeks — seeds
Mustard — seeds
Bulb onions — seeds
Green onions — seeds
Parsnips — seeds
Peas — seeds
Radishes — seeds
Rutabagas — seeds
Spinach — seeds
Turnips — seeds

October 15–31

Beets — seeds
Bok choy — seeds
Broccoli — seeds or transplants
Brussels sprouts — seeds or transplants
Cabbage — seeds or transplants
Chinese cabbage — seeds or transplants
Carrots — seeds
Cauliflower — seeds or transplants
Celery — seeds or transplants
Chard — seeds or transplants
Collard greens — seeds
Endive — seeds
Garlic — sets or cloves
Kale — seeds
Kohlrabi — seeds or transplants
Head lettuce — seeds or transplants
Leaf lettuce — seeds or transplants
Mustard — seeds
Bulb onions — seeds
Green onions — seeds
Parsnips — seeds
Peas — seeds
Radishes — seeds
Rutabagas — seeds
Spinach — seeds
Turnips — seeds

November

November 1–14

Globe artichokes — seeds
Asparagus — transplants
Beets — seeds
Bok choy — seeds
Broccoli — seeds or transplants
Brussels sprouts — seeds or transplants
Cabbage — seeds or transplants
Chinese cabbage — seeds or transplants
Carrots — seeds
Cauliflower — seeds or transplants
Celery — seeds or transplants
Chard — seeds or transplants
Collard greens — seeds
Endive — seeds
Kale — seeds
Kohlrabi — seeds or transplants
Head lettuce — seeds or transplants
Leaf lettuce — seeds or transplants
Mustard — seeds
Bulb onions — seeds
Green onions — seeds
Parsnips — seeds
Peas — seeds
Radishes — seeds
Rutabagas — seeds
Spinach — seeds
Turnips — seeds

November 15–30

Globe artichokes — seeds
Asparagus — transplants
Beets — seeds
Bok choy — seeds
Broccoli — seeds or transplants
Brussels sprouts — seeds or transplants
Cabbage — seeds or transplants
Chinese cabbage — seeds or transplants
Carrots — seeds
Cauliflower — seeds or transplants
Celery — seeds or transplants
Chard — seeds or transplants
Collard greens — seeds
Endive — seeds
Kale — seeds
Kohlrabi — seeds or transplants
Head lettuce — seeds or transplants
Leaf lettuce — seeds or transplants
Mustard — seeds
Bulb onions — seeds
Green onions — seeds
Parsnips — seeds
Peas — seeds
Radishes — seeds
Rutabagas — seeds
Spinach — seeds
Turnips — seeds

December

December 1–14

Globe artichokes — seeds
Asparagus — transplants
Beets — seeds
Bok choy — seeds
Broccoli — seeds or transplants
Cabbage — seeds or transplants
Chinese cabbage — seeds or transplants
Carrots — seeds
Cauliflower — seeds or transplants
Celery — seeds or transplants
Chard — seeds or transplants
Collard greens — seeds
Endive — seeds
Kale — seeds
Kohlrabi — transplants
Head lettuce — seeds or transplants
Leaf lettuce — seeds or transplants
Mustard — seeds
Bulb onions — sets or cloves
Green onions — seeds
Peas — seeds
Radishes — seeds
Rutabagas — seeds
Spinach — seeds
Turnips — seeds

December 15–31

Asparagus — transplants
Beets — seeds
Bok choy — seeds
Broccoli — seeds or transplants
Cabbage — seeds or transplants
Chinese cabbage — seeds or transplants
Carrots — seeds
Cauliflower — seeds or transplants
Celery — seeds or transplants
Chard — seeds or transplants
Collard greens — seeds
Endive — seeds
Kale — seeds
Kohlrabi — transplants
Head lettuce — seeds or transplants
Leaf lettuce — seeds or transplants
Mustard — seeds
Bulb onions — sets or cloves
Green onions — seeds
Radishes — seeds
Rutabagas — seeds
Spinach — seeds
Turnips — seeds

The freeze dates behind the calendar

The publication gives windows, not frost dates. These are the NOAA medians for every station Maricopa County ZIP codes cite — where a first freeze reads earlier in the year than the last one, that station's freeze-free season crosses New Year.

Freeze dates and summer heat — the 23 NOAA stations Maricopa County ZIP codes cite, 1991–2020 normals (median dates)
Station	NOAA ID	Last spring freeze	First fall freeze	Mean summer high
Aguila, AZ	USC00020060	March 17	November 19	99.2 °F
Carefree, AZ	USC00021282	February 4	December 16	102.1 °F
Castle Hot Springs, AZ	USC00021353	January 15	December 22	104.0 °F
Chandler Heights, AZ	USC00021514	February 1	December 11	103.2 °F
Dateland Whitewing Rch, AZ	USC00022434	January 25	December 13	105.5 °F
E Mesa, AZ	USC00022782	February 1	December 10	104.9 °F
Fountain Hills, AZ	USC00023190	January 6	December 28	101.9 °F
Gila Bend 2Se, AZ	USC00023393	January 23	December 11	108.4 °F
Laveen 3 Sse, AZ	USC00024829	January 14	December 22	106.4 °F
Litchfield Park, AZ	USC00024977	January 7	December 24	105.0 °F
Painted Rock Dam, AZ	USC00026194	January 21	December 15	106.4 °F
Phoenix Deer Valley Muni AP, AZ	USW00003184	January 8	December 25	102.6 °F
Phoenix Sky Harbor INTL AP, AZ	USW00023183	January 5	January 3 (next year)	105.2 °F
Pinnacle Peak, AZ	USC00026603	January 27	December 21	97.9 °F
Punkin Ctr, AZ	USC00026840	March 7	November 20	101.7 °F
Roosevelt 1 S, AZ	USC00027281	January 17	December 25	102.6 °F
Scottsdale Muni AP, AZ	USW00003192	January 6	December 26	103.0 °F
South Phoenix, AZ	USC00028112	January 21	December 16	101.5 °F
Stewart Mtn Dam, AZ	USC00028214	February 13	December 5	104.0 °F
Tempe Asu, AZ	USC00028499	February 13	December 5	104.8 °F
Wickenburg, AZ	USC00029287	March 7	November 20	102.4 °F
Wittmann 1Se, AZ	USC00029464	February 5	December 11	103.2 °F
Youngtown, AZ	USC00029634	January 20	December 15	103.5 °F

Where these dates come from

Every planting window on this page is from the University of Arizona Cooperative Extension's Vegetable Planting Calendar for Maricopa County (az1005), by Kai Umeda, revised September 2018, peer reviewed. It lists 53 crops in 24 half-month planting windows; S means seeds, T transplants, X sets or cloves.

Publication: https://extension.arizona.edu/publication/vegetable-planting-calendar-maricopa-county
PDF: https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1005-2018.pdf

⚠️ It is written for Maricopa County, which holds 135 of the 164 ZIP codes in the Phoenix-Mesa-Chandler, AZ metro area. It is not written for the other 29 — Pinal County (29) — nor for Tucson, Yuma or anywhere else in Arizona, and this site does not stretch it to cover them. Freeze dates, summer highs and rainfall are NOAA 1991–2020 normals from the stations named on this page.