What can I plant throughout Summer?

The old favourites such as petunias, vincas, alyssum & marigolds provide instant colour, but if you're after long lasting summer interest, try salvia, mandevilla or geraniums for reliable blooms all season. 
It's also not too late to plant passionfruit vines or another batch of tomatoes, chillies & capsicum for a late season crop! Just don't forget to mulch and give your plants a regular deep soaking.