One of the advantages of rainforest species is that, even if your garden is too sunny or otherwise unsuitable, you can still grow many of them inside. Several of the species local to the Illawarra do very well indoors in limited light. Maidenhair ferns, which are present throughout the escarpment, are already grown widely inside houses. Here are a few other species you can try, grown on their own or mixed together in a single pot.
Bolwarra (Eupomatia laurina) is a handsome shrub with a cane-like trunk (or often several trunks). The leaves are a glossy green, starting out pale but darkening with age. It can reach 4m or higher when grown outdoors, but in a pot will stay much shorter, generally not more than a metre. The one pictured has been in a pot for about three years.
Native tamarind (Dipoglottis australis) might be a bit of an eccentric choice for an indoor plant, as it naturally grows into a very tall tree, up to 30m tall. However, it will grow well enough in a pot for several years, and has beautiful pinnate leaves that are brownish and furry when young. It will grow rapidly, and need potting up once a year or so. This one is about four years old, and still happy enough.
Orange thorn (Pittosporum multiflorum) has small round leaves and attractive orange fruit in autumn. (It won't fruit indoors unless you open your house to pollinators!) It will grow to 1-2m high indoors, but can easily be kept pruned to whatever size suits your space.
Here is a fuller list of local plants that will do well indoors.
Tough fern with beautiful lacy pale green fronds, prefers relatively high light levels
Giant Maidenhair Fern
Tough large Maidenhair Fern with lacy dark green fronds; part shade
Bird’s Nest Fern
Classic smooth-leaved fern, needs a fairly large space once established but is slow-growing and small when young
Very attractive climbing fern that needs shade; can be grown up tree ferns
Straw Tree Fern
Tree fern to 6m with lacy fronds and delicately patterned trunk; needs regular moisture and a large area
Prickly Rasp Fern
Tough clumping fern with upright fronds and reddish new growth; prefers relatively high light levels
Hare’s Foot Fern
An easy-care plant with striking long rhizomes that may reach up to 50cm long. Great for hanging baskets.
Slow-growing palm that looks good for many years indoors.
Large and slow-growing palm with attractive foliage but prickly trunk and leaf stem; for large spaces only
Succulents and similar
Small creeping groundcover that copes with very low light conditions
Sprawling fleshy plant to 30cm high; will spread and hang over the edge of a pot; needs some sun to do well
Edible plant with attractive leaves; best grown in a self-watering pot or bubbling water feature as it needs plenty of moisture
Long strappy leaves, blue fruit on tall stems; shade tolerant
Giant Pepper Vine
Vigorous climber with attractive glossy leaves and red fruit; will trail downwards attractively from a pot, post or hanging basket
Slow-growing vine with heart-shaped leaves; can be grown up a rough stake or other support
Light twining climber with attractive red fruit
Small bushy plants
Small shrub with round leaves and orange fruit; rather prickly (caution required)
Thin-stemmed shrub to 3m with glossy leaves and edible, peppery berries; can be pruned
Small rainforest trees
Neat rounded crown and attractive glossy leaves
Leggy or shrubby plant with large hydrangea-style leaves; best in a self-watering pot
Bushy and slow-growing; the leaves have a cinnamon like scent and can be used in cooking
Brush Mutton Wood
Small tree with interesting blue fruits along the smaller branches, though it will not fruit if kept in doors
Slow-growing shrub or small tree to 4m, smaller if kept pruned, attractive pinkish new growth
Illawarra Plum Pine
Slow growing, with closely-spaced glossy green leaves and edible fruit
Shrub or small tree with arching branches and large glossy leaves
Bird Lime Tree
Striking large green leaves with a purplish tinge; best grown indoors
Striking and uncommon small local tree with edible blue fruits
Water-hungry tree with stunning reddish new growth, worth growing indoors in a self-watering pot
Slow-growing tree with decorative zig-zag growth in its smaller branches and attractive leaves
Some maintenance is needed for all indoor plants, including these ones. Feed them with slow release fertiliser for native plants, and give them a watering every couple of weeks or when the soil looks dry. They will look and last better if you wipe dust off their leaves with a damp cloth every three or four weeks. Plants will need to be potted up periodically, using low phosphorous potting mix suitable for native plants.
Happy (indoor) gardening!