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Yarnauwi Farm

~ Fleurieu Peninsula, South Australia

Yarnauwi Farm

Category Archives: trees

Fleurieu history: Imagining landscape change

07 Sunday Jun 2020

Posted by Joel in ecology, events, exploring, history, planning, regeneration, trees, waterways

≈ 1 Comment

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books, climate change, creeks, erosion, fire, Fleurieu, Fleurieu Coast, Fleurieu Peninsula, history, history society, Kaurna, land management, rain, regeneration, regenerative agriculture, research, revegetation, rivers, water

In March 2020, Joel was invited to present to the Yankalilla & District Historical Society on our research into how the landscape of the Fleurieu has changed over the last few centuries. Below is an edited version of the talk. If you’re interested in knowing more, we can also send you some links to interesting historical images from the colonial period. Any errors are our own – let us know if you have any questions or comments.

In 2012, my wife Sophie and I, with our children Asher and Annika purchased Yarnauwi, just outside of Second Valley. Our property is just under 50 acres, running between South Road and the Wirrina golf course, and over the last seven years with the generous support of our friends, neighbours and family we’ve worked to regenerate this patch of the landscape.

Our property is intended to remain at least partly agricultural. We’re not seeking to return it to a prior state of imagined ecological perfection. As we’ve discovered through our research and through our experience of working with the land over the last seven years, too much has changed and is still changing to return what was there before colonisation.

Instead, we’re working to restore its health and function as a landscape, and to build its resilience in a changing climate. I’m neither an historian or a scientist, however we have spent a lot of time contemplating both history and science, and tonight I wanted to share with you some of what my wife Sophie and I have discovered in our process of working to regenerate Yarnauwi. Continue reading →

Yarnauwi (Virtual) Farm Tour 2020

09 Thursday Apr 2020

Posted by Joel in events, history, regeneration, trees, waterways

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ecology, erosion, events, farm, Fleurieu, Fleurieu Coast, permaculture, revegetation, soil, southwestern Fleurieu, tour, trees, water

There’s been so much growth and change at the farm over the last year that we really wanted to share with our team of volunteers and supporters. However, with everyone staying in their postcode this holiday weekend and farm tours suspended for the foreseeable future, we thought we’d put together a little video so you can still enjoy the big skies of the Fleurieu! Take care, and we hope to see you back under the trees soon!

Tiny communities

27 Monday Jan 2020

Posted by Joel in ecology, regeneration, trees

≈ 2 Comments

Tags

ecology, farm, Fleurieu, Fleurieu Coast, insects, photography, revegetation, seasons, southwestern Fleurieu, spiders, summer, trees

New growth on a red gum sapling.

We’ve been talking a bit recently about when a woodland becomes a woodland. Asher suggested 500 years of growth, but was willing to settle for 50. Perhaps it’s a woodland when the birds think so, when the firetails and blue wrens jump the boundary fence from neigbouring scrub and decide they’re safe flitting from branch to branch. As our earliest plantings grow taller than humans, and the canopies thicken and throw shade, we started noticing an increasing diversity of tiny life. Insects for whom a gum or wattle tree is their universe are finding their way across the paddocks to settle in the emerging plantings. Despite the heat and dry of summer, the trees are heaving with insect life. We recently saw the documentary The Biggest Little Farm about an idealistic (and evidently well-funded!) couple who start a diverse 200 acre farming project outside of Los Angeles. One of the messages of the film is that when you create the right conditions, nature finds a balance. As we walked through the saplings, on one, the new growth and leaves were being systematically devoured by small copper coloured beetles. We walked to the next tree, the copper beetles were present, but as we watched, were body slammed by wasps and carried away. At the next, the beetles had been busy, but now a spider had arrived, and was meticulously wrapping the beetle population in silk. Perhaps these tiny communities are beginning to find the balance too.

Here’s a tour of some of the life on the trees – we’d love your help with identification!

Beetle eats leaf.

Spider eats beetle.

Ants farm aphids on an Acacia.

A huntsman and egg sac.

Leafhopper, with comrades.

Two-spotted cup moth caterpillar.

Case moth cocoon, constructed from silk and twigs.

Ants on twisty leaves. What’s going on?!

Wasp galls on a golden wattle.

Year of Fire: Annual Report 2020

27 Monday Jan 2020

Posted by Joel in ecology, planning, regeneration, trees, waterways

≈ 2 Comments

Tags

annual report, books, ecology, erosion, farm, Fleurieu, Fleurieu Coast, kangaroos, livestock, permaculture, photography, planning, revegetation, seasons, soil, southwestern Fleurieu, summer, trees, winter, yarnauwi

A melted tree guard shrink wraps a seedling after a fire move through part of the property in January 2019.

2019 began and ended in fire. In early January, some errant fireworks set off by passers-by landed in one of our front paddocks, burning across a couple of hectares of our property. We were lucky. There was little wind, and it was quickly noticed and contained by our amazing neighbours and the CFS. Meanwhile, in Tasmania, fires ripped through the forests, and by spring and early summer, vast tracts of the east coast and Kangaroo Island were catastrophically aflame once again. While we’ve escaped the drought and bushfires that have gripped so much of the continent, these phenomena have served to focus our goals and aspirations in 2019. It’s been a year of learning as we work towards a more regenerative approach: ultimately building soil and harvesting water and carbon in the landscape.

2019 had the dubious distinction of being Australia’s hottest and driest year on record. It got pretty warm in the shed.

Learning
Our regenerative aspirations have been focused by some outstanding events this year. In June, we attended the Deep Winter Agrarian Gathering in Willunga, drawing together 150 aspiring and established regenerative farmers from around Australia to share skills and ideas. Former CSIRO microbiologist and climate scientist Walter Jehne set the tone with a rousing and inspirational keynote on restoring natural processes through agriculture to cool the climate.

The Food Forest’s Annemarie Brookman with Gardening Australia’s Costa Georgiadis at Deep Winter, Willunga.

Continue reading →

Yarnauwi Treefest 2019

10 Monday Jun 2019

Posted by Joel in diy, ecology, regeneration, trees, waterways

≈ 8 Comments

Tags

design, ecology, erosion, events, farm, Fleurieu, Fleurieu Coast, nursery, permaculture, propagation, revegetation, seasons, soil, trees, water, waterways, winter

A serial tree-planter manages to synchronise his outfit with the colouring of Eucalyptus occidentalis.

A couple of days before this year’s tree planting, I rang our friend and regular tree-planter Jeremy, and told him that three out of four family members were sick with the flu and we were thinking of cancelling this year’s planting weekend. He didn’t accept that proposal, effectively telling us that tree planting would happen regardless of our involvement, that between his family and another they would take care of catering, rally the volunteers and get the trees in the ground.

It has always been an aspiration of ours that the farm might offer a place for people to be able to develop connection with the landscape through collaboration on land-based projects – “where people and the landscape can restore each other”. I hope that Jeremy’s response, and the support of our friends and community over the last seven years of tree-planting is an indication of this aspiration in development. In this spirit, this year we were also delighted to host regenerative side projects such as Steven Hoepfner’s seed ball regeneration experiment, and provide a waterway for Sue and David Speck’s sedges, and a forever home for Greg Wood’s trees.

Steven’s seed ball project: local provenance bundles of seed and nutrients distributed across revegetation zones to germinate when the conditions are right.

Continue reading →

Saltbush city limitless

14 Sunday Apr 2019

Posted by sophie in ecology, livestock, regeneration, trees

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saltbush

At this time of year when it hasn’t rained properly for about 6 months and even the hardiest of our native trees and shrubs start to wilt, we say thank heavens for saltbush. This family of plants are the Australian climate change gardeners’ morale booster – the hotter and drier it gets the more they seem to leaf out, attract beneficial insects, tower in size over anything else and improve the conditions for other species.

The first species we have had success with, Old Man Saltbush (Atriplex nummularia), grows in inland areas of Australia. Its seeds were traditionally used as a food source for Aboriginal people, and the leaves are also edible and rich in protein, antioxidants, and minerals. It’s commonly used as a livestock grazing plant, which was one of the reasons we planted it, as a high-protein green fodder source at times of the year like this when there is not much else for stock to eat.

20190414_151004

Old Man Saltbush is extremely drought and salt tolerant and apparently lives for more than 100 years! It accumulates salt in its leaves as it extracts water from the soil so can help to reduce salinity. It is very deep rooted and can access moisture and nutrients out of reach of other plants, making those nutrients available to other surface plants via grazing. Its roots travel up to 5m deep and 10m wide to access nutrients and moisture, as well as having surface roots to collect light rain and bind soil. It also sequesters carbon in the soil.

It is fast growing so can provide shelter within a few years to other plants or stock, and works well grown as a hedge/windbreak. I am keen to grow it as a hedge border around a vegetable garden in future as it attracts beneficial insects as well as blocking wind. It seems to grow fine on our heavy clays, though I note it prefers the dryer ridge to the more low lying winter waterlogged areas. And it has such nice grey-blue shimmery leaves! And kangaroos don’t seem to touch it! So much to love. It really is a hero of the plant world.

20190414_151118

Woody trunk after 3 or 4 years growth

Another species we’ve been very grateful to be acquainted with is Creeping Saltbush (Atriplex semibaccata). We planted it on the disturbed slope next to our shed site as a way of stabilising the soil and avoiding erosion and it has thrived. It forms a dense low mat of up to 1.5m diameter, tolerates high levels of salinity and salt-laden winds, tolerates drought, has an edible berry, reduces soil temperature, and provides habitat for beneficial insects. On some of our hottest and driest summer days, it was green and covered in blue copper butterflies!

20190217_114052

Creeping away

And it now seems to be coming up “by itself” (maybe with the help of ants moving fruit around) in a couple of other spots around our shed, not minding growing in gravel at all. This year we are planning to plant it on our gully walls in the hopes of stabilising those slopes, increasing habitat and creating a living mulch around other trees and shrubs.

 

20190317_123717

Colonising the shed site

Finally, we are always overjoyed to see Ruby Saltbush (Enchylaena tomentosa) popping up by itself in various paddocks around the farm with no help from us (via birds or sheep perhaps). Again the small red fruits are edible, again it is ridiculously hardy tolerating drought, salt, and sand.  Sheep love eating it, but unfortunately they leave nothing behind! And the green leaves are such a sight for sore eyes in this driest time of year.

20190414_093334

We feel we have only just started on our journey experimenting with saltbush, and look forward to encouraging this family of perennial plants to be our allies on the path to increasing productivity and biodiversity.

Not ‘if’, but ‘when’: planning for fire

07 Monday Jan 2019

Posted by Joel in ecology, planning, regeneration, trees

≈ 5 Comments

Tags

bushfire, climate change, design, ecology, erosion, farm, fire, Fleurieu, Fleurieu Coast, permaculture, planning, resilience, revegetation, seasons, soil, summer, trees, zones

Melted tree guard on a eucalyptus seedling.

A few evenings ago, someone set off fireworks on the road beside our property. Embers from the fireworks landed in the grass on the property boundary and quickly took, spreading through the dry summer grass along the fence and down a drainage line. Thankfully, our neighbours quickly noticed and set to work with their own fire unit while awaiting the arrival of the police and Country Fire Service. The blaze was contained with minimal damage, but it’s stimulated us to revisit our property plans and consider how we’re designing for the inevitability of fire.

Scorched earth and singed trees.

Continue reading →

Tree-fest 2018: Six years and growing

11 Monday Jun 2018

Posted by Joel in ecology, propagation, regeneration, trees, waterways

≈ 2 Comments

Tags

community, Fleurieu, Fleurieu Coast, revegetation, tree planting, trees, winter

Volunteers planting at the very first Yarnauwi tree planting extravaganza, 2013

The work continues in 2018 with new plantings amid established trees.

Six years ago we first invited friends and family to come and plant trees at Yarnauwi. They came, dug holes in a windswept paddock, hunched their shoulders against the cold and ate lunch beneath one of the property’s two big old red gums. That first year most of the plants were devoured by kangaroos and deer. Amazingly, our friends and family came back the following year and every year since, with the tree-planting weekend growing into an annual celebration of moist ground and hope for the future.

Loyal volunteers work on a windbreak

Continue reading →

Yarnauwi: the First Five Years

07 Sunday Jan 2018

Posted by Joel in art & craft, diy, ecology, events, history, regeneration, trees, waterways

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art, books, design, ecology, history, illustration, photography, planning

IMG_9876
Towards the end of 2012 we first came to Yarnauwi Farm. The property at that time was a single paddock, carved up with junk-filled erosion gullies and with two regal, remnant red gums smeared up the hillside by the wind. However, set within a grand landscape of rolling hills and a couple of kilometres from the coast, there was something about it that captured our attention and our aspirations.

Five years later, the property is beginning to change. The survivors of annual tree planting are now heading skywards, most of the junk is gone, paddocks have been fenced, some erosion gullies are stabilising, sheep graze, fruit trees peek from the tops of tree guards and rain thunders on a shed roof. The last five years have brought with them an almost vertical learning curve, challenge, plenty of failures and the indescribable satisfaction of seeing seedlings become trees become woodland.

We’ve tried documenting this process online here at yarnauwi.com, but to celebrate this milestone we’ve also produced a limited edition book curating photos, illustrations and writings from the last five years.

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Yarnauwi: The First Five Years is divided into sections on the history of the property, trees and tree planting, creek restoration and erosion management, treasures extracted from the junk heaps, property planning, “obtaining a yield” and landscape change through the Fleurieu seasons. Each section is copiously illustrated with photographs and drawings and hopefully provides inspiration to others who are seeking to regenerate their own landscape or who have a connection with the spectacular landscape of the Fleurieu Coast. A number of sections contain “before-and-after” photographs of locations around the farm showing the impact of tree planting and low-tech erosion management strategies, predictably however, with a few decent summer downpours the changes were even more dramatic just a month or two after taking the final photographs!

It’s available for purchase now from our Etsy shop and we’ll also have a few copies available, together with sheepskins and farm- and Fleurieu-inspired artworks at the Second Valley Market from 10.00am-3.00pm on Saturday 27 January 2018.

Yarnauwi: The First Five Years
Softcover, 48 pages, full colour on premium satin paper.
Approximately 21.7cm x 28cm.

Kangaroo grazing and revegetation: looking for a way forward

01 Monday Jan 2018

Posted by Joel in ecology, livestock, planning, regeneration, trees

≈ 4 Comments

Tags

books, ecology, farm, future, holistic management, kangaroos, planning, revegetation, trees

IMG_8035

Western Grey Kangaroos fight it out in one of our revegetation habitat zones

One of the most persistent challenges in our work to revegetate areas of the farm has been managing kangaroos. Despite its previous status as woodland, for decades the farm has been an enforced grassland as hay paddock and pasture, the preferred environment of Western Grey Kangaroos. While early accounts of the region describe the southwestern Fleurieu as “kangaroo country”, land clearing, the elimination of predators such as dingoes, reduced hunting pressure, and in our case, the provision of year-round green pick in the form of a nearby irrigated golf course has contributed to a steady increase of kangaroo numbers.

We’ve observed that the kangaroos follow a seasonal rhythm of converging on our property in numbers during the cooler, wetter months, before dispersing into smaller family groups as the weather warms and dries. During this time, they typically move into the neighbouring golf course, and because of the constant availability of fresh feed it is rare to see a female kangaroo without a joey. While most species of kangaroos typically prefer grass, the Western Grey is also noted as a browser of shrubs and seedlings. Continue reading →

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