Can you pick your pecans off of the tree when they r still green?

No, it's not advisable to pick pecans when they are still green. Pecans should be harvested when they are fully mature and the outer hulls have started to split, indicating that the nuts inside are ready to be collected. Harvesting them too early can result in lower quality nuts and a less flavorful product. Waiting until they are ripe ensures better taste and texture.