Plant Germination, Yield, Harvest, Rotation, Planting and Thinning Data
1 x 2 foot hydroponic growers (10 gallon Rubbermaid storage containers) were used for experiments over four years to compile this data. 
Days Until
Germination
Days Until
Germination
Yield
Per Tub
Time Until
Harvest
Time
Until
Rotation
Planting
Per Tub
Thinning Small Plants
Vegetable
Min
Max
Pounds
Days
Days
Seeds
Plants Per Tub
Asparagus
16
44
3
200
365
20
Do not harvest or thin until 2nd year
Bell Pepper
14
21
30
100
365
20
Thin to 10
Broccoli
7
12
1.5
100
120
30
Thin to 8
Brussels Sprouts
7
12
2
100
120
30
Thin to 8
Cabbage
7
12
3
100
90
20
Thin to 8
Cantaloupe 
5
10
12
100
365
8
Thin to 2 plants when 3" long
Carrot
10
17
30
90
90
200
Thin to about 100
Cauliflower
7
12
2
100
100
20
Thin to 10
Collards
5
10
12
60
60
50
Thin to 30
Cucumber
3
5
20
60
365
8
Thin to 2 to 4 and support with string
Eggplant
14
21
5
140
365
20
Thin to 6
Garbanzos
5
12
20
60
60
15
Thin to 8 and stake on strings
Garlic
10
20
20
100
120
30 cloves
Thin by harvesting
Green Beans
7
14
30
60
90
20
Thin to 8 and stake on strings
Kale
7
28
10
100
120
20
Thin to 4
Leeks
14
18
30
100
120
50
Thin by harvesting small greens
Lentils 
5
10
3
140
120
15
Thin to 10
Lettuce
6
12
5
30
60
40
Thin to 20
Marrow
5
10
10
100
90
8
Thin to strongest 2 plants when 3" tall
Mustard Greens
5
8
5
25
60
50
Thin to 30
Mushrooms
10
20
5
30
60
30
Thin to 30
Onions
18
21
20
100
120
200
Thin to 100
Peanuts
8
12
4
200
365
30
Thin to 10
Peapods
7
10
15
60
120
40
Thin to 20
Potato
14
21
10
100
180
 Plant 10 eyes
Thin to 6
Pumpkin 
5
10
10
100
180
8
Thin to 2
Radish
5
10
10
30
30
100
Thin to 50
Rice
10
20
4
140
90
100
Thin to 50
Salad Greens
3
7
5
36
30
50
Thin to 30
Soybean 
10
20
10
250
120
10
Thin to 6
New Zealand Spinach
10
20
4
36
40
50
Thin to 25
Strawberries
20
40
2
100
365
Plant 6 crowns 
Thin to 6
Sunflower Seeds
5
10
2
100
90
20
Thin to 8
Sweet Corn
10
12
12
60
60
16
Thin to 12
Sweet Potato
10
15
10
100
180
20
Thin to 10
Tomato
8
11
32
90
365
20
Thin to 6
Turnip Greens
6
10
5
40
90
100
Thin by harvesting greens
Turnip Root
6
10
15
90
90
100
Thin to 50
Watercress
5
10
4
50
90
40
Thin to 20
Watermelon
5
12
20
100
100
8
Thin to 2

Revised: 8 September 2000
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Copyright © 2000 Institute for Simplified Hydroponics