Lee Valley Tools Gardening Newsletter
Vol. 3, Issue 1
February 2008
 
Seed Starting
 
 
  Timing Is Everything  
 

Plan your planting timetable. If you live in a climate with four seasons, check your area's frost-free date. Consult seed packets, a seed catalog or the Internet to determine how many weeks it will take for the seeds to grow into viable seedlings ready for transplanting in the garden. Subtract this amount of time from the frost-free date by counting backwards.

 
     
  I use a chart, which I've adapted from www.organicgardening.com by adding a column to keep track of when to harden off the seedlings. Hardening off entails setting the plants outside in a protected area before planting to acclimatize the indoor-grown seedlings to the harsher outdoor conditions. They should be placed in a shaded, protected area and gradually left out for longer periods each day. Allow about two weeks for the hardening off process.  
   
 
SEED STARTING PLAN
The frost-free date in my garden is: May 19
Crop
When
to Start
Inside
Weeks
from
sowing
Safe to set out time (relative to frost-free date)
Hardening
off
date
Trans-
planting
date
 Basil
April 14
6
1 week after
May 12
May 26
Pansies
March 31
4 - 6
2 weeks before
April 12
May 5
 
     
  Sow your seeds with the assumption that weather conditions will be favorable by the frost-free date and, if necessary, alter your planting schedule. For example, the frost-free date where I live is May 19, as stated in the chart above. If by that time the weather is unstable and there's still some frost, I'll likely wait an extra week or two before transplanting. Seedlings planted in cold soil may not thrive; wait a few weeks and plant them in warmer soil.  
     
  Remember, some cool-weather spring annual seeds such as pansies and snapdragons can be started early and transplanted two to four weeks before the frost-free date (provided they have been hardened off properly).  
 
                 
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