how hard is it to grow veggies in planters?

You can buy 5 gallon pails from Lowes. They will need small holes in the bottom of them and small rocks to help them drain water. Tomatoes, peppers, herbs, cucumbers and squash like sun. You plant what you like. You can buy some of these in small plants. The packages of seeds will give you information on the back of them. You can plant a plant and then plant the seeds of the same plants and having the food at different times instead of all at the same time.