It was the goddess Demeter, the goddess of the harvest who made all the world's plants wither and die, but it was in mourning of her daughter Persephone who had been stolen to the underworld by the God Hades to become his bride.
No, beaches cannot wither. Only plants wither.
They wither as their function is complete (attracting pollinators), they wither and detach from the plant so that they don't consume any more of the plants resources
Without water, many land plants wither and die.
Due to etiolation
During drought plants will wither (or dry out)
Unwither ring gives you the ability to never wither a crop for life. Even if you leave your plants for a month it won't wither.
They wither away.
Because they have been cut of from their root system that provides them with water.
The Demeter, the Earth mother goddess, goddess of harvest and growing for mankind substance, did let the earth wither and die as Demeter searched for Persephone rather then go on without her daughter.
Plants need food and water , and they breathe carbon dioxide, and give out oxygen. They get sick, wither and die like man.
The plant would lose its color and eventually start to wither.
However long they take to grow, that's how long they take to wither. For example: If the plant is ready for harvest in two hours, two hours after that (for a total of four after it was planted), it will wither. A four hour plant takes four more hours to wither (for a total of eight) and so on.