Vegetable Planting Guide

Planting Guide Clock

Use this vegetable planting guide as a resource to help you plan and plant your garden.

There are five different groups of plants: Cold Hardy, Semi-Hardy, Tender, Very Tender, and Late Crops for Fall Harvest.

Some plants do better in cooler weather and other thrive in the hot summer sun. Plan your garden accordingly.

Cold Hardy Vegetables

These vegetables do better in cooler weather (60-80°F). They can grow with daytime temperatures as low as 40°F and may survive a frosty nip.

Plant these vegetables as soon as the soil dries out in the Spring. They are often replanted mid-summer for a fall harvest.

VegetableSeeds
100’ Row
Germination
Temperature
Days to
Germ.
Planting
Depth
Spacing
between
Plants
Days to
Harvest
Asparagus (seed)1 oz141/2"12-24"2 years
Broccoli1/2 oz   40-90°F
Optimum 80°F
7-101/4"12-24"50-60
Brussel Sprouts1/2 oz   Optimum
   68-75°F
101/4"12-2450-55
Cauliflower1/4 oz   Optimum
   65-75°F
101/4"12-24"60-70
Cabbage1/2 oz   40-90°F
Optimum 80°F
101/4"12-24"60-75
Kohlrabi1/2 oz   40-90°F
Optimum 80°F
101/4"3-6"55
Leeks1/2 oz   40-90°F
Optimum 80°F
7-121/4"4-6"120
Lettuce1/4 oz   35-70°F
Optimum 70°F
7-101/4"6-12"45-60
Onion, Green1 oz   35-90°F
Optimum 80°F
7-121/4"2-3"60
Onion1 oz   35-90°F
Optimum 80°F
10-201/4"2-4"60-90
Peas1-2 lbs   40-80°F
Optimum 70°F
10-203/4-1"1-2"60-70
Radish1 oz   40-90°F
Optimum 80°F
71/4"2-3"35-40
Spinach1 oz   40-70°F
Optimum 70°F
81/4-1/2"2-4"35-40
Turnip3/4 oz   40-100°F
Optimum 80°F
71/4-1/2"2-6"35-40

Semi-Hardy Vegetables

These vegetables grow with minimum temperatures of 40-50°F, but are not as tolerant of a frosty night.

Plant these vegetables 2-3 weeks after you plant the Cold-Hardy Vegetables.

VegetableSeeds
100’ Row
Germination
Temperature
Days to
Germ.
Planting
Depth
Spacing
between
Plants
Days to
Harvest
Beets1/2 -
1 oz
   40-90°F
Optimum 80°F
8-101/2" - 1"2-4"45-55
Carrots1/2 -
1 oz
   40-90°F
Optimum 80°F
14-211/4"1-3"60-70
Parsley3/4 oz211/4"4-12"70-75
Parsnips1 oz   35-90°F
Optimum 80°F
15-251/4"3-4"105-120
Potatoes10 lbsMinimum 45°14-216"9-10"70-100
Swiss Chard1 oz -
1 1/2
   40-95°F
Optimum 85°F
8-101/2"4-6"50-60

Tender Vegetables

These vegetables require daytime temperatures above 60°F. They prefer the warm summer days. They are intolerant of frost.

Plant these tender vegetables around the frost-free date (This is the average day that there are not any more frosty nights in your area). In zone 4 North America that's about the 10-20 of May.

VegetableSeeds
100’ Row
Germination
Temperature
Days to
Germ.
Planting
Depth
Spacing
between
Plants
Days to
Harvest
Bush Beans1-2 lbs   55-90°F
Optimum 80°F
6-101"2-3"55-65
Pole Beans1/4-1/2 lbs   55-90°F
Optimum 80°F
6-101"3-6"60-70
Celery1/4 oz211/8"6-12"54-56
Sweet Corn1/4 lb   50-100°F
Optimum 80°F
7-141"6"65-85
Lima Bean1-2 lbs6-101"3-6"65-75

Very Tender Vegetables

These plants thrive during the hot summer days. They are intolerant of frost and cool spring winds.

An

Aqua Dome® or a Wall of Water can help protect these vegetable while they get their start in the spring. If you use one of these, you can plant the vegetables in the garden before times listed on the vegetable planting guide.

Plant these very tender vegetables 1-2 weeks after the tender vegetables. In zone 4 North America that's the end of May.

VegetableSeeds
100’ Row
Germination
Temperature
Days to
Germ.
Planting
Depth
Spacing
between
Plants
Days to
Harvest
Cantaloupe4 oz   60-100°F
Optimum 90°F
10-141/4-1/2"12" apart down row65-85
Cucumber1 oz   60-100°F
Optimum 90°F
7-101/2-1"12" apart down row45-60
Eggplant   60-90°F
Optimum 80°F
7-1418-24"60
Peppers1/8 oz   60-90°F
Optimum 80°F
15-201/4"12-24"65-80
Pumpkin1 oz7-101/2-3/4"12" apart down row85-110
Summer Squash2 oz   60-100°F
Optimum 90°F
7-101/2-3/4"36"45-55
Winter Squash1 oz   60-100°F
Optimum 90°F
7-103/4-1"12" apart down row85-120
Tomato1/4 oz   50-100°F
Optimum 80°F
10-141/8"24"65-85
Watermelon1 oz   60-110°F
Optimum 90°F
10-141/4-1/2"12" apart down row75-90

Late Crops for Fall Harvest

You can get a second crop of: Beets, Broccoli, Cabbage, Cauliflower, Lettuce, Onion, Peas, and Spinach. Plant these vegetables mid July through August. The specifics are listed on previous vegetable planting guide.

Additional resources used in compiling this vegetable planting guide Anderson Seed Colorade State Extension

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Gardening Vegetables from Vegetable Planting Guide

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