Chili plants are both annuals and biennials. They are grown as houseplants and perennials as well as ornamental plants. The plant requires irrigation at regular intervals. These plants are incredibly easy to� look after. Chili plants are easy to grow and as long as they receive plenty of moisture and nutrients, are not subjected to cold and receive plenty of sunshine. These plants are available in various varieties and colours, right from small round cherry peppers to long, pencil-shaped cayenne varieties.