Vetiver as mulch

Hello. I am thinking of starting a dragon fruit farm. I am thinking of growing vetiver as an intercrop to be used as mulch for the plants. I need information about vetiver. For how long can I keep cutting the grass growth without harvesting the roots?

Go to the following link
https://cimap.res.in/pages/AdminHomePage.aspx
its a govt portal of CIMAP Lucknow…
Only they can provide you accurate knowledge…
CIMAP also conduct training programs to educate new persons.