Lettuce contain them

Over the last several weeks, I viewed thousands of picture of gardens I've taken in the last six years, which is nearly every picture I've taken in the last six years.

I was looking for pictures to include in a presentation I put together called "No Excuses--Grow Vegetables".

Or maybe it was "Grow Vegetables--No Excuses".

Either title, I presented it today at a spring gardening clinic.  The