I obviously can't comment on how it works in DS, but I can highly recommend all of Esha's plants.
Oh, yeah. Her plants are wonderful! I have a LOT of her plants. (Why, no, I'm not a plant addict... ahem.)
But in all seriousness. Her Poser plants work beautifully in Poser. Her DS plants work just as well in DS. I find that her Poser plants work okay in DS, but are more suitable for mid to background placement when used in Studio.
But her plants are just great. And yes, VERY light on the system resources because of being mesh. Her grass is my first go-to when I need to fill a scene with grass! LOL!