I found a very small patch, 5 x 2m, of green panic growing along a fence line. In November the opportunity happened, @ 0600 with a pick and bags in hand, I transferred / borrowed / dug out a small amount of the plants including the roots and dirt. Arriving home @0645 with 2 full bags of root stock material. Transferred the plants into their garden bed, no fertilizer used tap water and some rain.

The pick is just covering one plant
The plants have grown to about 1.8m high and now going to seed.
The extra large wheelie bin gives an indicator of these plants potential height.
Check the size of the seed heads out.
I gave a friend some small plants which also have grown, planted inside his aviaries, up to 2.1 m high. Unfortunately the council have now poisoned and cut back the original site.
Life in Port Macquarie is the ultimate Aussie sea change lifestyle.