Raspberries are pretty easy to prop by rootshoots. I put mine in individual pots filled with a mix of garden dirt and compost… and that mix had my usual mix of organic fertilizers mixed in… bone meal blood meal gypsum greensand epsom salt.
Babied them a while… moved them to more sun as they looked ready for it…
Bought 6 raspberries and a couple years later had 100 or more.