Category Archives: General

April 2024

Welcome to the website of South Lawson Park Bushcare Group! For information about the group and its activities, please see https://southlawsonpark.bushcarebluemountains.org.au/about/.

In April the Bushcare Group conducted a busy session in the upper catchment, restoration area #1. Plant maintenance was conducted. Privet seedlings were removed. Approximately nine Leptospermum sp. were planted in area #1. Recently planted Hakea salicifolia, Calistemon citrinus and Gahnia sieberiana are doing well, but Swamp Wallaby nibbling is affecting other plantings.

A new check dam was constructed in the swamp – restoration area #2.

Despite heavy rain on the previous weekend (approx. 300mm) and evidence of strong flows in the riparian area #4, the sites were stable, and no erosion was evident.

Streamwatch convenor reports good stream water quality: Dissolved oxygen, phosphates, turbidity, salinity-freshness and chemical balance.

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March 2024

This month the regular session was a wash-out (a welcome wash-out, as the rain was very much needed), so an alternative work session was arranged for Tuesday, March 26th. The session was conducted in the Parklands restoration area. A large amount of Fleabane was removed by enthusiastic bushcarers. Approximately 70% of the restoration area is now (temporarily) free of this weed, and seed distribution has been much reduced.

Pleasingly, natural regeneration of a wide range of locally indigenous species is occurring, as abundant moisture and sunshine are available. Over time, these plants will dominate the site, making it difficult for Fleabane and other weed species to become established in large numbers.

February 2024

Welcome to the website of South Lawson Park Bushcare Group! For information about the group and its work, please go to About: https://southlawsonpark.bushcarebluemountains.org.au/about/

On Friday 16/02/24, Bushcare Officer and bushcarers conducted a planning/mapping/photo survey session on the Parklands restoration site. A further vegetation survey was conducted on Wednesday 28/02/24 by Bushcare Officer and bushcarer. Some very healthy natural regeneration is now occurring.

Natural regeneration of Eucalyptus sp.nd Acacia sp. Parklands regeneration area Photo: P Ardill February 2024
Natural regeneration of Eucalyptus sp. and Acacia sp. Parklands regeneration area Photo: P Ardill February 2024

At the regular session on Sunday, 18/02/204, a vigorous work session was conducted within the Parklands restoration site. Unfortunately, common weed, fleabane, mostly likely Flaxleaf fleabane (Conyza bonariensis), has become well established on the site. This weed poses a threat to the widespread natural regeneration of indigenous plants that is now occurring on the site. Approximately 500 fleabane and their flowers and seeds were removed.

Streamwatch convenor reports that water quality in Lawson Creek was good: oxygen, phosphate, chemical balance, freshness and turbidity.

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January 2024

Welcome to the website of South Lawson Park Bushcare Group! See About for information about the bushcare group and forthcoming session details.

This month the work session was conducted in ER areas #2 and #4, east Waratah Street. Bushcare Group members welcomed Alison and Russell.

Along the main Lawson Creek tributary extensive Privet weeding was conducted. This allowed more sunlight to fall on existing Hakea salicifolia plantings. Callicoma serratifolia, Gahnia sieberiana and Hakea teretifolia were planted in ER areas #2 & #4. Check dams in the swamp tributary of Lawson Creek were strengthened. Bare soil was mulched. Privet seedlings were managed. Juncus microcephalus seeds were removed.

Hakea salicifolia thriving restoration area #4 Lawson Creek tributary Jan 2024 Photo: P Ardill
Hakea salicifolia thriving in restoration area #4 Lawson Creek tributary Jan 2024 Photo: P Ardill

December 2023

This month the South Lawson Park Bushcare Group worked in the west Waratah Street site (#ER1).

Planting of 10 Gahnia sieberiana plants was conducted: 8 x in the wetland area (ER#2), and 2 x in the western regeneration area (ER#1).

In ER#2 Juncus microcephalus seeds were collected. A start was made on removing another patch of this weed: a small spade is used to sever roots, the plant is hung to dry out, and then redistributed on the ground, to serve as a soil stabiliser. This method is efficient and avoids use of herbicides.

In ER#1 Privet seedlings were managed. The area of Microlaena sp. and Oplismenus sp. was enlarged, by careful weeding of Yorkshire Fog grass.

Previously planted seedlings of Hakea salicifolia (ER #1 and #2) are showing tremendous growth. The Swamp Wallaby is not interested in nibbling them. Leptospermum polygalifolium is also doing well. Leptospermum juniperinum plants are being constantly nibbled and display limited growth.

Regrowth of Blackberry within the entire site is minimal/absent. Regrowth of Japanese Honeysuckle in ER#2 is minimal but still strong in ER#1.

Streamwatch convenor reports that water quality in Lawson Creek tributary (ER#4) was good: oxygen, phosphorous, freshness, chemical balance, turbidity.

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November 2023

The Bushcare Group worked in the Parklands regeneration/conservation area on Sunday 19/11/23. We welcomed two work participation students: a HSC science student and a TAFE conservation and land management student.

Natural regeneration of locally indigenous plant species was facilitated. A seed scattering zone was selected and marked. In the zone, bare sections of soil were chipped. Seed was collected in the bushland perimeter area (Hakea sp., Leptospermum juniperinum, a Banksia serrata cone and Petrophile pulchella), and scattered across the chipped soil areas, between exisiting bushland and halfway to the boundary fence. Good November rains will encourage germination of this seed, and growth of seedlings.

Hopefully, seed of Lomandra longifolia, Gahnia sieberiana, Hakea teretifolia, Callistemon citrinus and a variety of Leptospermum species (polygalifolium, lanigerum, juniperinum, grandifolium and arachnoides) will be available for scattering in the future.

Along the northern section of the Parklands area, Juncus microcephalus seed and plants and also Scotch Thistle plants were removed. Photo points were established.

Juncus microcephalus removal Parklands restoration area (north) Nov 2023 Photo: K Hising
Juncus microcephalus removal Parklands restoration area (north) Nov 2023 Photo: K Hising

October 2023

The Bushcare Group worked in the west Waratah Street ecological restoration zone #1 this month. Juncus microcephalus and Privet were targeted. Nice to see plantings of Hakea sericea and Leptospermum polygalifolium doing well.

Lawson stream tributary (ER #4) recorded good water quality: oxygen satisfactory, phosophates low, turbidity low, chemical balance good and water freshness satisfactory.

September 2023

On Sunday 17/09/2023 the Bushcare Group worked in the new regeneration area, Lawson Parklands. Juncus microcephalus in drain lines was weeded. The site was surveyed for natural regeneration, and it was pleasing to record that quite a large amount of naturally distributed indigenous plant seed has germinated, and the resultant seedlings are maturing. See Parklands at https://southlawsonpark.bushcarebluemountains.org.au/parklands-regeneration/

Assessing natural regeneration, regeneration area, Parklands, looking south Lawson Creek lhs 17/09/2023 Photo: P Ardill
Assessing natural regeneration, regeneration area, Parklands, looking south. Lawson Creek left 17/09/2023 Photo: P Ardill

Streamwatch results were good: oxygen, phosphates, turbidity, chemical balance and water freshness. Happy water bugs!

August 2023

The Bushcare Group continued its work in the #1 ecological restoration area, west Waratah Street. Primarily, Privet was the target.

Water quality in Lawson Creek tributary was excellent: oxygen, phosphates, turbidity, chemical balance and freshness.

Interesting diggings (traces) in the #1 ER site were observed. This is quite a big excavation. Perhaps a Swamp Wallaby digging for fungi? The excavation has been referred to a higher authority, for interpretation.

Large fauna excavation ER#1 Swamp Wallaby? August 2023 Photo: P Ardill
Large fauna excavation ER#1 Swamp Wallaby? August 2023 Photo: P Ardill

July 2023

Work on primary and secondary management of Privet continued in ecological restoration area #1.

Replacement of Privet by planting of indigenous plants ER area #1 west. Limited natural regeneration Photo: P Ardill July 2023
Replacement of Privet by planting of indigenous plants ER area #1 west. Limited natural regeneration Photo: P Ardill July 2023

Very pleasing to spot an Australian White Ibis in the wetland immediately north of the BMX track. Much restoration effort has been expended in this area over the years! Bandicoots continue to be very active in ER area #1.

Australian White Ibis. Restored ER area #1 Photo: P Ardill July 2023
Australian White Ibis. Restored ER area #1 Photo: P Ardill July 2023

Streamwatch convenor reports that water quality in Lawson Creek tributary ER #4 was good: oxygen levels, phosphorus (low), saltiness (low), chemical balance and turbidity (low).

The Bushcare Group agreed that a natural regeneration audit of Lawson Parklands riparian zone would be undertaken during the September session.