Tomatoes are a fruit because they are ripened pistils of flowers that contain the seeds that can grow. Most of the plants we sell are heirloom and allow for you to harvest and replant the same variety next year. There are different types of tomatoes and most of the ones we sell are indeterminate. This means that you will have to prune them to get more tomatoes. There must also be structures, like tomato cages or stakes. This will give them support for the large fruit as they ripen and keep the plant stable. Pruning is important to also maintain adequate airflow to evaporate moisture and allow equal exposure to sunlight. It is critical to know what to keep on the plant and when to plant these tomatoes. Wunderground.com is one of the best sites to monitor temperature and wind forecasts for hardening off your plants. More on pruning your plants-- suckers refer to the pictured part of tomatoes that pull energy, nutrients, and water from fruit-bearing branches. We also recommend that you do not get the parts of the plant wet but apply water directly to the soil a few inches away from the trunk or main stem base. Water on the fruit can encourage mold and damage. Let us know some of your tips in the comments or ask a question we all may have or could answer!