Nasturtium can be grown in spring, late summer, or early fall, depending on the climate of the region. In most regions, it can be grown in spring after the last frost date by directly sowing in the garden. It can also be planted in late summer or early autumn in regions with warm winters and no frost. By doing this, they can establish themselves before winter and bloom in the cooler months.
Nasturtium can be grown indoors too in order to receive its year-round supply. It prefers well-drained soil and full sun, but it can tolerate partial shade too.
Under favorable conditions, nasturtium seeds can germinate within 7 to 14 days. After around 8 to 12 weeks of sowing seeds, it begins to produce flowers.
Nasturtiums have the ability to self-pollinate, which allows them to generate seeds without the aid of outside pollinators. They do, however, also draw the attention of a wide range of pollinators, such as bees, butterflies, and hummingbirds. While visiting the flowers to consume the nectar, these pollinators unintentionally spread pollen from one blossom to another, promoting cross-pollination.
They have brightly colored flowers in shades of yellow, orange, and red, which are easily visible to pollinators. After pollination, it produces seed pods that contain seeds for future growth.