The board has set up a string of 'poonkavanams' (gardens) in a two-and-half acre site belonging to one of the most famed Vaishnava temples in the country.
The barren lands, adjacent to the shrine, have been cleared of waste and around 3,000 saplings of a host of traditional plant varieties have been planted there, board sources said.
Saplings will also be planted on the banks of Padmatheertham, the sacred temple pond, and Mithranandapuram, another pond located adjacent to the shrine, they said.
Temple Executive Officer K N Satheesh said the main focus is on 'thulasi' and 'thechi', which are largely in demand for temple rituals.
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"We are mainly focusing on thulasi and thechi. Now we source flowers for daily rituals from farms in Thovala and Nagercoil in Tamil Nadu," he told PTI.
The temple staff would take care of the gardens and nurturing of the plants, he said.
With the garden programme, the dependency on the neighbouring state could be reduced to some extent, temple sources said.