|
Crop |
Average Planting Dates |
Last or Fall Planting Date |
Days to Maturity |
Average Harvest Dates |
Comments |
|
Asparagus |
April 15 |
- |
2 years |
- |
Perennial crop |
|
Beans, snap |
May 10 - July 15 |
July 15 |
55 days |
July 4 - Sept. 8 |
Days to maturity may
increase with late plantings |
|
Beans, lima |
May 20 - June 20 |
June 20 |
90 days |
Aug. 20 - Oct. 10 |
Days to maturity may
increase with late plantings |
|
Beets |
April 15 - Aug. 15 |
August 15 |
70 days |
June 24 - Frost3 |
Days to maturity may
increase with late plantings |
|
Broccoli |
April 15 - June 15 |
July 1 |
60-70 days |
June 21 - Sept. 8 |
Pests cause serious
problems in late plantings |
|
Cabbage |
April 15 - June 15 |
July 1 |
65-70 days |
June 21 - Sept. 8 |
Pests cause serious
problems in late plantings |
|
Carrots |
April 15 - May 31 |
June 1 |
70 days |
June 25 - Aug. 10 |
May have several
sequential plantings |
|
Cauliflower |
April 15 - June 15 |
July 1 |
50-60 days |
June 4 - Aug. 14 |
Plant as early as
possible to avoid excessive heat and insect pests |
|
Cucumbers |
June 1 |
July 1 |
60 days |
Aug. 1 - Frost |
Plant as early as
possible for maximum harvest until frost or disease kills vines |
|
Eggplant |
June 1 |
July 1 |
70-80 days |
Aug. 10 - Frost |
Continuous harvest
until plants are killed by frost |
|
Kohlrabi |
April 15 - June 15 |
July 1 |
50-70 days |
June 4 - Sept. 10 |
|
|
Lettuce, leaf |
April 15 - July 15 |
August 10 |
40-50 days |
May 25 - Frost |
Only certain
cultivars can be grown during the heat of the summer. Many growers
plant a fall crop |
|
Lettuce, head, romaine |
April 15 - July 15 |
July 22 |
70-75 days |
June 24 - Frost |
Only certain
cultivars can be grown during the heat of the summer. Many growers
plant a fall crop |
|
Muskmelon |
May 20 |
July 1 |
80-90 days |
Aug. 8 - Frost |
Plant as early as
possible for maximum harvest until frost kills the vines |
|
Onions, storage |
April 15 - May 10 |
May 15 |
80-90 days |
July 4 - Aug. 13 |
Plant early if
possible - tops should dry naturally for best storage |
|
Onions, sweet Spanish |
April 15 - May 10 |
May 15 |
100-110 days |
July 24 - Aug. 28 |
Use transplants for
best results |
|
Peas, snap |
April 15 |
April 15 |
55-65 days |
June 4 - July 20 |
May plant a fall
crop |
|
Peas, snow |
April 15 |
April 15 |
70 days |
June 24 |
|
|
Peppers, green |
May 20 - June 1 |
July 1 |
60-70 days |
July 19 - Frost |
Continuous harvest
until plants are killed by frost |
|
Peppers, jalapeno |
May 20 - June 1 |
July 1 |
75 days |
Aug. 4 - Sept. 15 |
|
|
Potatoes, red |
April 15 - July 10 |
July 15 |
70-90 days |
June 24 - Oct. 8 |
|
|
Pumpkins |
May 20 |
July 1 |
90-120 days |
Aug. 18 - Frost |
Plant as early as
possible for maximum harvest |
|
Spinach |
April 1 - April 30 |
April 30 |
45 days |
May 15 - June 1 |
Can plant a fall
crop 45 days before frost |
|
Squash, summer |
May 20 |
July 1 |
45-60 days |
July 4 - Frost |
Plant as early as
possible for maximum harvest before frost or insects kill vines |
|
Squash, winter |
May 20 |
July 1 |
90-120 days |
Aug. 18 - Frost |
Plant as early as
possible for maximum harvest before frost or insects kill vines |
|
Sweet corn |
April 15 - June 15 |
June 15 |
75-90 days |
June 30 - Sept. 15 |
Usually have several
sequential plantings |
|
Tomatoes |
May 20 |
July 1 |
65-80 days |
July 25 - Frost |
Continuous harvest
until plants are killed by frost |
|
Turnip Greens |
April 15 |
August 15 |
35-40 days |
May 20 - Frost |
Can plant up to 45
days before frost |
|
Watermelon |
May 20 |
July 1 |
75-90 days |
Aug. 3 - Frost |
Plant as early as
possible for maximum harvest before frost kills the vines |
|
1Dates are
for southern Wisconsin. Add 7-14 days for northern locations.
2Karen
Delahaut is a Senior IPM Outreach Specialist with the University of
Wisconsin, Department of Horticulture. Dr. Larry Binning is an
emeritus professor and vegetable specialist with the University of
Wisconsin, Department of Horticulture.
3Average
date for 1st fall killing frost in southern Wisconsin ranges
between September 27 & October 24. October 1 was arbitrarily used in
the calculations. |
