Tuberose (Poliantha tuberosa)

  • Flowers are ready for harvest in about 3-3.5 months of planting.
  • August- September is the peak period of flowering.
  • The stage of harvesting of flowers depends upon the distance of travel and varies with the kind of flower.
  • For local market, tuberose should be cut when lower 2-3 florets have opened. Individual flowers which grow at the horizontal position on flowers stalk are picked in the early morning.
  • The spikes are clipped by using a sharp knife/secateur that gives a clean cut, leaving about sufficient portion of the scape so as not to damage the growing bulb.
  • The average yield of flower is as follows.
    • Plant crop: 5-10 t/ha
    • First ratoon: 9-12 t/ha
    • Second ratoon: 4-6 t/ha<
  • Harvesting stage of tuberose bulb is important for storage of bulbs and their growth.
  • The bulbs are harvested when the flowering is over and plant ceases to grow.
  • At this stage, the old leaves become dry and bulbs are almost dormant.
  • Irrigation is withheld and soil is allowed to dry before digging out the bulbs.
  • After digging, the bulbs are lifted out; the bulblets are separated and used as seed stock for the next season.
  • The bulbs are graded based on their size and are placed on shelves to dry or cure.
  • The bulbs must be stored or have their position changed every few days to prevent fungal attack and rotting.
  • Curing can also be done by tying the bulbs in bunches and hanging them on frames and walls.
Ratoon crop
  • After the harvest of the main crop, the flower stalks are headed back and the plot is manured and irrigated.
  • Three or four ratoon crops can be taken from single planting.