What do they grow on the model farm?

Do gourds rot? Why are the leaves on my roses turning brown? Can you grow popcorn from popcorn kernels? Why was the exchange of plants and animals between the old and the new world called the Columbian exchange? How can I properly care for and maintain dry ferns to ensure they remain healthy and vibrant? How do you properly plant a seed in the ground to ensure successful growth? What is dispersal in the flower life cycle? How can I ensure that store-bought flowers remain fresh overnight? How can you tell the age of a PALM tree? Which seeds will grow better ones in a container with water or ones in a punnet? How many seeds does a rubber fruit have? Why is compost used in a garden? How can I properly trim a magnolia bush? How do you keep your kalanchoe blooming consistently? Why is it important to read pesticide labels before using pesticides? Is there a seaweed called tang? Will ivy kill a tree? Are there any flowers with naturally black petals? Will dyna grow pro-tekt work in soil? How do you know when to pick an eggplant from the plant?