The Island Gatherers mod for Stardew Valley allows you to purchase fruit trees, and forage products from the Island Trader. This mod also adds a new way to harvest crops on your own land, by planting and watering crops and fruit trees.

To purchase crops and fruit trees, you need to repair the farmhouse on your land. You can place plants in the ground and wait for them to grow. Once they are ready, you can harvest them. You can also replant seeds that have been harvested.

To harvest fruit trees, you will need to use the new harvesting tool. This tool is available from the Island Trader.