 |
What seeds to sow when the soil
temperature is above . . .
Minimum Soil Temperature
(in ºF) |
Type of Seed |
|
40 |
Arugula,
Broad
or Fava beans, Endive, Kale,
Lettuce,
Parsnips, Garden
or English Peas, Radish |
|
50 |
Chinese Cabbage,
Cress,
Kohl Rabi,
Leeks,
Onion,
Rutabaga
(Swedes), Swiss Chard, Turnips |
|
60 |
Bush
Beans[1],
Kidney Beans[1],
Pole Beans[1], Runner
Beans[1], Beets, Brussels
Sprouts,
Cabbage, Carrots, Cauliflower, Celery, Parsley, Spinach
Notes:
Beans
will not tolerate frost so don't take risks or plan on replanting if
frost occurs.
|
|
70 |
Asparagus[2], Tomato[3], Eggplant[3], Pepper[3], Cucumber, Corn (Maize)[4], Muskmelon,
New
Zealand Spinach[5],
Okra, Pumpkin, Rhubarb[6], Sorghum, Summer Squash, Winter Squash, Watermelon
Notes:
-
Start Asparagus seeds
indoors or in a greenhouse 60 to 90 days prior to your last expected
frost date. Direct seeding into the garden is not recommended.
Tomatoes, peppers and eggplants need
to be sown indoors 6 to 8 weeks prior to your last expected spring
frost date.
Soil must be at least 65ºF for corn seeds to germinate. Be patient
or you will waste a lot of seed! [Click
here for more information.]
New Zealand Spinach should be direct sown after all danger of frost
has past or start transplants indoors 3 to 4 weeks prior to your
last frost date.
Sow Rhubarb seeds
¼-inch deep, indoors, six to eight weeks prior to last frost.
|
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.
|