To grow your own garden in the city, all you need is a small patch of land, a windowsill or just a sunny spot. Amelia Tarpey is the Program and Publicity Manger for GrowNYC Greenmarkets. She said you can find herb and vegetable starts or seedlings at the market to get going, from basil and mint, to peppers and tomatoes. Right now at market, seedlings are going for about $2 to $8. You can also use your SNAP benefits to purchase them.