Here's a good article from SUSTAINABLE GARDENING AUSTRALIA about the Midyim:
The midyim berry Austromyrtus dulcis (also known as midgen berry or sand berry) is an easy to grow bushfood which occurs naturally in coastal areas ranging from northern NSW to Fraser Island in Queensland. A favourite with Aboriginal people it has a sweet, but tangy flavour which means it is nice to eat fresh, but also great in pies and preserves. It is a close relative of the Lilly Pilly. Because it hardly suffers from pests and disease, it is a useful plant for gardeners who want to minimise their environmental impacts by avoiding chemicals sprays and fertilisers.
Able to grow to almost 2 metres in its natural habitat of mild rainforest gullies, it is, however, mostly grown as a low shrub about 1m tall and 80cm wide. It can be also be useful as a low hedge. The leaves of Austromyrtus dulcis are an attractive burgundy colour when young, then turn dark green. They are arranged in opposite rows and the under-surface has a dense covering of hairs giving it a pale appearance.
The midyim berry grows in full sun or part shade, growing densely to about 40 cm in full sun and as a more open ground cover if planted in the shade. In climates outside its natural range, it is best located under some overhanging tree branches to give some protection from frost.
It will grow well in sandy coastal conditions as long as it is protected from harsh, salt-laden winds. It handles a range of soils and will thrive in garden soils as long as there is good drainage but adequate moisture. So that means thorough mulching in summer to prevent drying out.
The flowers are 7-10mm wide with white ovate petals. In its natural habitat, flowers appear in spring and summer, while in cooler places, like Canberra, the flowering time is summer to mid-autumn.
Harvesting time for the sweet berries, which some say have a gingery taste, is late summer and autumn. The berries are white with small blue-black spots which give them a mauve or grey appearance.
The midyim berry appears to be relatively free from pests and diseases. However, as a member of the Myrtaceae family, it is at some risk from myrtle rust. This disease attacks young leaves, shoot tips and young stems as well as fruits and flowers. The first sign of myrtle rust infection is tiny raised spots that are brown to grey. Up to 14 days after infection the spots produce masses of distinctive yellow/orange spots. If you think you may have myrtle rust, contact authorities in your state.
Able to make an attractive hedge the midyim berry can be pruned to any shape. It is relatively easy to propagate. Fresh cleaned seed germinates in 3-4 weeks while uncleaned fruits take a little longer. Although the outer coat of the seed is hard, no scarification (breaking or scratching) is necessary. Propagation from cuttings is also easy.
The fruit is best eaten fresh, seeds and all, but can be added to fruit salads, pies or made into jam. Some say it has a flavour that is like a blueberry with a hint of eucalyptus.
According to a factsheet from the Queensland Government, native edible plants are a useful wild-life friendly alternative to the usual fruits and vegetables we plant in our backyards. Native species do not need fertilisers, which reduces the pressure of nutrient loading on nearby waterways. And, planting native plants in our backyards is one way to reduce the use of exotic species and help protect native species from extinction.
The midyim berry is sold around the country in nurseries which specialise in native bushfood. It can sometimes be sourced online.
Midyim Berry & Apple Pastry slice (http://tasteaustralia.biz/bushfood/native-fruit/midyim-berry/)
50g midyim berries
2 large green apples
2 sheets of frozen puff pastry
50g brown sugar
1 tsp milk, to glaze pastry
Peel, core, and finely slice apples. Lay out pastry sheets and place apple slices down the centre.
Sprinkle apples with midyim berries. Cut small pieces of butter and sprinkle on fruit, and then sprinkle with sugar, reserving 1 teaspoon for the glaze.
Cut pastry on slant in strips about 1cm wide up to apple. Starting at one end, overlap strips in a plait pattern wrapping over the top of the fruit. Place on a baking sheet and bake in oven at 200ºC until starts to brown.
Remove from oven. Mix milk and teaspoon of sugar and brush on top of pastry to glaze. Place back in oven to finish browning. Serve with fresh cream or custard.
Midyim berry jam
It can be used as a substitute in other berry jam recipes or mixed with other berries.
Megan Hallowes started her career as a journalist in South Africa, then worked as an editor and writer in Australia. She lives in Melbourne with her husband and two children and is working towards a bountiful garden of veggies, herbs and fruit trees.
I have had these growing for a few years outside the front fence. It's possible I have missed them flowering and fruiting due to their location. I am yet to eat a fruit.
I purchased some recently to replace some exotic ornamentals out the front of my house. I wasn't really focused on the edible aspect, though, but mostly on the ability to grow a dense, weed suppressing mass. Any food will be a bonus!
That's a good find Lissa.
This plant died and I think the soil may have been too dry and shady. It did fruit before it died. I will try them again in a different location and see what happens. I must admit, I do like grazing through the garden, some fruit here and there.