[Jay Pyrchla]

No expert here, but I think Woolly bush are great. Adenanthos sericeus. Also are potential fire retardant. Very little science behind it, just rumours. I guess it depends on how your budget is. Woolly bush are available at nurseries in 5L pots, you can get mature ones ready for the wind. I would defiantly run some irrigation for this summer if you plant them soon. Planting them 1-2m apart you could get a nice closure quickly.