Who on earth suggested artificial grass mounds? There are so many wonderful ways to inject tasteful design solutions into a garden. This one sounds at odds with that concept. But then I haven't seen the overall design project. It sounds like an overzealous landscape architect who is hell-bent on changing the site for the sake of construction. I would advise against them as they won't last - whatever you do will eventually break down!

It depends a bit how much money you have. My advise it to work out where you want garden beds, where you want grass. You can use lime to mark out areas to see what it looks like. Lay grass ASAP as it stops the dirt and dust coming into the house. If you can turf is fastest. Go directly to a turf farm, talk to them about the best mix for where you are and your lifestyle and ask if they do different grades. We have very successfully used lower grades. Even with delivery going direct is better. If this is too much start by seeding close to doors and work out as it establishes. This will help reduce the dirt being tracked in. In your garden beds if you are short in money plant up whole areas. It is better to have nothing in spots than sparsely planted everywhere, in other words establish one bed and move on. The exception is trees. Plant as soon as possible to get your shade as soon as you can. If water is ok then try tubestock, much cheaper than pots. This way you can afford more plants. However for a few key trees/plants you might want to spend the extra on bigger plants. Draw up a plan so you know what you want where, including future things like sheds and pools as you don't want to plant trees there. Be careful what you plant near pipes. I know it's hard to find good nurseries and advice as that terrible hardware place has taken over, but it is worth paying a bit extra from a nursery, if you can find one, as you will get good advice which is unlikely from that horrible big place that has put so many out if business so now they can charge more. Good luck.

Hi Brett, this is an image from Outdoor Establishments in Sydney, one of their Mosman projects. Maybe you can ask them? I'm tipping Dianella or possibly Liriope. Leaf blade is too wide to be one of the more likely Lomandra's.

Thanks Leigh, I live in Rye. I was only intending to go down to Bunnings to grab a box of seeds but may have to see a supplier now. thx John