The third designer, Mark Hoey, works full time as a landscape gardener. Homeowner, Shelly Gaynor has cerebral palsy and wants a garden that's both beautiful and universally accessible to enjoy with her family and friends. Mark designs a `reflection" garden for her using black-water pools to bring in the sky and surrounding plants into the garden and help create a sanctuary. Mark has just three weeks to build his garden and prove to the judges that he has what it takes to go to Bloom 2021.

The final competitor is graduate architect Siobhan Keogh, whose design is more focused on planting than hard landscaping. She hopes her retreat and restorative-themed garden will take her all the way to Bord Bias Bloom.