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Seeding Schedule for 2020
Species or Variety Best Date Planned Date Actual Date Comments
         
dusty miller Feb 16 Feb 16 March 18  
parsley Feb 21 Feb 21 March 2 Soak overnight.
portulaca Feb 22 Feb 22    
petunia March 4 March 4 March 18 Frost hardy.
poppies March 9 March 9 March 20  
canna lily March 10 March 10 March 21 Under lights
matthiola March 17 --   Frost hardy.
nasturtium March 18 April 18   Also try outdoors.
celosia argentea March 22 --    
snapdragons March 22 March 22   Freeze first. Frost hardy.
tomatoes March 23 March 23    
basil March 31 March 31    
celosia cristata April 1 April 1    
ensete tuber April 1 April 1   Indoors
schizanthus April 8 April 8    
marigold, short April 10 --    
giant zinnias April 11 April 11    
bells of Ireland April 20 --   Chill 2 weeks ahead. Use volunteers.
marigold, tall May 1 May 1    
morning glory May 10 --   Outdoors.
gladioli May 12 May 5   Indoors.
corn May 12 May 12    
lavatera May 20 --   Outdoors
sunflower May 24 --   Outdoors
cosmos May 24 May 24   Outdoors.

Historical Seeding Schedule

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