Here's what I want to grow in a pot this month: spring. One option is indoor citrus trees, in this case more specifically indoor lemon trees, via Williams Sonoma:
Above: An 18-inch tall Meyer Lemon Tree in a pot is $69.95.
Above: Wondering how to get your indoor citrus trees to set fruit? For step-by-step instructions, see "DIY: Potted Indoor Citrus Trees."