very nice orchard you you have there. Wish I have the more space like yours - my tiny yards are full and overcrowded like a jungle.
And if you plant those pandan under a mature tree - with some humidity, it spreads extremely fast. My California weather is more dry, only 10-20% humidity, so it barely crawl. But my mom's pandan spread all over her yard - the location that she lives has more than 50% humidity.