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Victory Heirloom Seed Company - Preserving the future, one seed at a time!

 "Preserving the future,
one seed at a time."



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No GMOs Here!

We are an early signer of the Safe Seed Pledge

All of our rare and heirloom seeds are public domain, open-pollinated, non-hybrid and chemically untreated. No chemicals, unstable hybrids, patented or genetically engineered seeds!


Days Required for Vegetable Seedling Emergence at Various Soil Temperatures

A basic understanding of the science of biology is critical to successfully partner with nature and produce non-native plant species in our gardens and years. Soil thermometers are relatively inexpensive and a wise investment.


Soil Temperature (degrees Fahrenheit)

Vegetable

32

41

50

59

68

77

86

95

104

Asparagus

NG

NG

53

24

15

10

12

20

28

Bean, Fava - - - 7 7 - - - -

Bean, Green

NG

NG

NG

16

11

8

6

NG

NG

Bean, Lima

-

-

NG

31

18

7

7

NG

-

Beet

-

42

17

10

6

5

5

5

-

Broccoli

-

-

20

10

6

5

5

-

-

Cabbage

-

-

15

9

6

5

4

-

-

Cantaloupe / Muskmelon

-

-

-

-

8

4

3

-

-

Carrot

NG

51

17

10

7

6

6

9

NG

Cauliflower

-

-

20

10

6

5

5

-

-

Celery

NG

41

16

12

7

NG

NG

NG

-

Corn (Maize)

NG

NG

22

12

7

4

4

3

NG

Cucumber

NG

NG

NG

13

6

4

3

3

-

Eggplant

-

-

-

-

13

8

5

-

-

Lettuce

49

15

7

4

3

2

3

NG

NG

Okra

NG

NG

NG

27

17

13

7

6

7

Onion

136

31

13

7

5

4

4

13

NG

Parsley

-

-

29

17

14

13

12

-

-

Parsnip

172

57

27

19

14

15

32

NG

NG

Pea

-

36

14

9

8

6

6

-

-

Pea, Southern

- - 14 10 8 7 - - -

Pepper

NG

NG

NG

25

13

8

8

9

NG

Pumpkin

-

-

-

-

15

6

4

3

-

Radish

NG

29

11

6

4

4

3

-

-

Soybean

NG NG NG NG - 7 7 - NG

Spinach

63

23

12

7

6

5

6

NG

NG

Squash

-

-

-

-

15

6

4

3

-

Tomato

NG

NG

43

14

8

6

6

9

NG

Turnip

NG

NG

5

3

2

1

1

1

3

Watermelon

-

NG

-

-

12

5

4

3

-

NG = No Germination - = Not Tested

Notes:

  1. Germination is a complex biological process triggered by environmental conditions specific to the species, and even by cultivar. Temperature is but one of the variables.

  2. Cooler soil temperatures cause seeds to remain dormant increasing their vulnerability to disease, insects and animals.

  3. More days are required with deeper seeding because of cooler temperatures and the greater distance of growth. Sowing too deep can also prevent germination.

  4. Optimal germination temperature is not necessarily the optimal field sowing temperature. For example, many brassicas germinate quickly at higher temperatures but if you wait until these climate conditions occur, the plants will be growing at the wrong time of the season.


References:

  1. "Vegetable Seed Germination," J. F. Harrington and P. A. Minges, California Agricultural Extension Leaflet, 1954.

  2. "Managing Cover Crops Profitably, 3rd Edition," USDA SARE, p.125, 2012.

  3. "Modeling the Effect of Temperature on the Germination Speed in Some Legume Crops," Ahmet Balkaya, Journal of Agronomy, 3: 179-183, 2004.

  4. "Comparative Germination Responses of Cowpea and Maize Genotypes to Soil Moisture Content," Abayomi, Y.A. and Adeniyi A.M., Agrosearch Vol. 7 (1&2) 2005: pp. 34-42.


Seed Favors for your Special Event. Click here for Heirloom Tomato Seeds and Information.


 

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