Most years I start tomato plants from seeds (easy when I had a greenhouse in LA, hard now that I have a windowsill in Manhattan), but I often augment my self-started seedlings with purchased ones.  I’ve had the best luck with plants from good ol’ Burpee.  This year, I ordered their Best of Show collection.  Six plants, five different varieties, $19.99.  The plants come sturdily packed for shipment, and ready to put in your garden.  Last year, I ordered from Cross Country Nurseries, which was recommended by Organic Gardening magazine, and actually specializes in chile and pepper plants. Overall, I was less pleased with the plants, except for one variety that has earned a permanent place in my small plot: The Black Cherry tomato.  These dark-fruited gems are really meaty, sweet and tasty.  I can’t wait to pick the first ones off the vine this year.