ROSI and Jurgen Lenz’s cacti kingdom at their Mildura home can be traced back to their German roots.

The couple emigrated to Australia in 1991 after falling in love with the country during a backpacking trip a few years earlier, when they picked grapes and packed onions among their tourist adventures.

They ran a 25-acre fruit block in the Robinvale area before moving to Mildura in 2008, when t...