Buttercup or Renagula is a perennial tuberous ornamental plant that is usually grown as an annual. There are many varieties of buttercups that give us abundant flowering in various colors such as yellow, orange, red, pink and white. Watermelon thrives in light soil that exhibits plenty of moisture, good drainage and aeration. To give longer flowering, we prefer to plant it in sunny places. The buttercup is resistant to cold, while high temperatures contribute to the rapid ripening of its flowers. Before planting, it is good to incorporate manure and compost into the soil or potting soil containing perlite if planting the watercress in a pot. We plant the tuberous roots of the buttercup at a depth of about 5 cm, so that they point down and at distances of 10-15 cm between the plants.
Buttercup has significant watering requirements and thrives in an environment that has enough moisture. However, adding too much water may cause the roots to rot if we do not have good drainage. Regarding fertilization, although it does not show particular needs, adding a small amount of fertilizer during the development of the flowering shoots will help good growth and flowering. After our plant has bloomed, it is good to remove the dry and withered buttercup flowers in time to ensure a richer and prolonged flowering.