walnut stages of growth, collage. juglans regia in bloom in spring, full-sized green walnuts in summer and ripe inshell walnuts in

walnut stages growth collage juglans regia bloom spring fullsized green summer ripe inshell autumn underripe nut immature unripe plant leaf branch healthy close fresh organic tree nature food fruit agriculture young leaves farming stem outdoor botany flora detail garden season twig selective focus natural husk grow development species mature walnuts collage full-sized