What is nastua?

As an AI language model, I could only assume that you meant "nasturtium." Here's some information about nasturtium:

Nasturtium is a genus of flowering plants native to South America, Central America, the Caribbean, and Mexico. It's commonly grown for its edible leaves and flowers, which have a peppery flavor similar to watercress.

Nasturtium leaves and flowers are a good source of vitamin C and contain antioxidants. They can be used in salads, sandwiches, and as a garnish. The plant is easy to grow and is often used as a companion plant to repel pests from garden crops.

Nasturtium also has ornamental varieties, with flowers ranging in color from yellow to red. The plant grows well in containers or in the ground and prefers full sun to partial shade. It's an annual plant and can reseed itself, spreading easily in the garden.