First, I researched flowers, fruits and vegetables that are suitable for container gardening. Most herbs (rosemary, thyme, oregano, cilantro, parsley, sage) grow well in full sun/partial shade. I was interested in planting kale, carrots, cucumber, Mesclun salad mix, green onions, and small tomatoes (Tumbling Toms) etc. They require containers of various sizes depending on their root system. I purchased seeds from local hardware store and gardening centre in February of 2014 and started sowing the seeds in March 2014, according to the sowing start date instruction on the packets.
I will be investing in purchasing seeds sourced from the community in the next growing season. The Toronto Community Gardening Network (http://www.tcgn.ca/wiki/wiki.php) provides the dates for buying, selling and trading heirloom and open pollinated seeds in Toronto, Canada.