How does a nursery produce petunias to sell as bedding plants?

A nursery typically produces petunias for sale as bedding plants through a process of propagation. This can be done through seed germination, cutting propagation, or tissue culture. Seeds are sown in trays or pots, cuttings are taken from parent plants and rooted, or tissue culture involves growing plants from small tissue samples in a sterile environment. The young plants are then nurtured in optimal growing conditions, including proper lighting, temperature, humidity, and nutrition, until they are ready to be sold as bedding plants.