Question? Issue with harvesting wild plants?

@MDianaSims Thanks for the input, for me sometimes when I travel to a destination that has wild plants growing, some are ready to be harvested when I get there (Very few if any). One thing that seems weird is that some plants you can look at them and see the harvestable on the plant but yet cannot harvest (is this normal?). Not only that, but also some plants have those green little glow crystals meaning a plant is ready to evolve. And still no harvest ability. But I will use what you're saying and try that. Am I to take it that by be in the area at 5am that I need to wake a bit early and travel to the location shortly before 5am, or will the harvestable be there 5am and the rest of the day after that time??