Follow the steps below to figure out when to start your seeds indoors.

  1. Write the average frost free date in column 1. Most gardeners in central Oregon use May 31, but use the date most applicable to your area.
  2. Then count back (or ahead) using the numbers in column 2 to determine the outdoor planting date and write that number in column 3.
  3. Count back from that date using the numbers in column 4 to determine the indoor sowing date. Beans and lettuce have been filled out below as examples.

 

Crop Frost-Free Date Weeks to Set Out Set Out Date Weeks to Grow Indoors Sow Date
beans 05/31 +1 06/07 -4 05/10
broccoli   -4   -6  
Brussel sprouts   -4   -6  
cabbage   -5   -6  
cauliflower   -2   -6  
corn   0   -4  
cucumbers   +1   -3  
kale   -5   -6  
leeks   -5   -10  
lettuce 05/31 -2 05/17 -5 04/12
melons   +2   -3  
onions   -6   -10  
peas   -4   -4  
peppers   +2   -8  
squash   +2   -3  
tomatoes   0   -8  

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