April 2018

Adjacent unformed Waratah Street. Native grasses regenerating in foreground and right, April 2018 (Photo: P Ardill)

Adjacent unformed Waratah Street. Native grasses regenerating in foreground and right, April 2018 (Photo: P Ardill)

This month we resumed work on our site immediately adjacent to the unformed section of Waratah Street. This area, normally quite damp, is now drying out a bit, due to the decreased rainfall of the last year. The natural ferns are struggling and the weeds Deadly Nightshade, Privet and Montbretia are doing well. We spent the time consolidating recovered natural bushland areas and weeding around remnant areas of good bushland. The same area is depicted in the post of July, 2017. A challenging site!


March 2018

A hot day saw us working in and around the mid-stream Lawson swamp, opposite the oval. Weeds included Blackberry, Privet, Arum lily, Montbretia and Japanese honeysuckle. Sections of this swamp are in nice condition but quite a bit of it still needs a lot of help.

Weeds in Lawson swamp: Deadly nightshade, MOntbretia, Arum lily, March 2018

Weeds in Lawson swamp: Arum lily, Deadly nightshade, Montbretia, March 2018

February 2018

Another hot day saw us working between Lawson oval and the rather dryish upper section of Lawson swamp, treating Privet, Blackberry, Arum Lily, Montbretia and Japanese Honeysuckle. Lawson Creek is only about half its normal width: mud flats are exposed. Hopefully the heavy rain around the upper Mountains on Monday evening of 19/2 evening extended down to Lawson.

January 2018

On a very hot day the group removed juvenile Privet, Turkey Rhubarb, Buttercup, flowering Montbretia and invasive Strawberry from the creek riparian zone opposite the playing fields.

Australian Museum Award!

The prestigious Australian Museum reckons we do a good job! We enjoy working with Gregory and the team there.

Congratulations to all those involved with Lawson StreamWatch over the years.

Certificate of Appreciation December 2017 (Photo: P Ardill

Fifteen years (Photo: P Ardill)

Congratulations to all StreamWatch award winners:


Long Term Commitment (Schools) Recognising ongoing commitment over a number of years


Group Years involved
Penrith High School 28 years
Seven Hills High School 25 years
The Illawarra Grammar School 22 years
Ryde TAFE 21 years
St Andrews College 20 years
Blakehurst High School 19 years


Long Term Continuity (Groups)Recognising many years of monitoring with minimal break


Group Years involved
Glenorie Environment and Creative Arts Centre 23 years
Eastbend Rural Communications 19 years
Lawson StreamWatch Group 16 years
Cowan Catchment StreamWatch Group 16 years
Royal National Park NPWS 15 years
Cattai Catchment Landcare and Annangrove Public School 15 years



What better way to start a new year than with a good piccy. Thanks to our bushcare officer for getting this great snap.

South Lawson Park Bushcare Group December 2017 (Photo: BMCC)

South Lawson Park Bushcare Group December 2017 (Photo: BMCC)

(Text on this website © 2016 Peter Ardill. Photos © 2017 Peter Ardill, BMCC, Vera Hong)



At our regular work session on Sunday 17/12 we worked around the golf course detention basin and then along our planted riparian corridor, treating blackberry, montbretia, japanese honeysuckle, creeping buttercup, broom and turkey rhubarb. The BMCC bush regeneration team has done some welcome remediation work (brush-matting) along the eroded Lawson Creek banks above Adelina Falls.

With the welcome rain having washed out a few sessions we had a catch-up session this am, Friday, December 1. The area to the west of the oval, the fine swamp under the power lines, was treated for blackberry, formosan lily, passion fruit vine and turkey thubarb……BIG turkey rhubarb! Hopefully this area is now predominantly rid of blackberry. The normal December session on the third Sunday will also be held, weather permitting.

Turkey Rhubarb, a tuberous pest. December 2017. Photo: J Rannard.

Turkey Rhubarb, a tuberous pest. December, 2017. Photo: J Rannard.

Passion fruit vine. It climbs and smothers. December 2017. Photo: J Rannard.

Passion fruit vine. It climbs and smothers. December 2017. Photo: J Rannard.


A welcome wash-out for the scheduled October session. Nice rain. We will have a catch-up session on October 25/10 to target some seeding Broom. The very good news is that Streamwatch macroinvertebrate testing on 13/10/17 revealed lots of Mayfly nymphs and other bugs in Lawson Creek, downstream of the swamp. This nymph is very sensitive and requires very good water quality so their presence is pleasing. This is a big improvement on the last series of testing.

Mayfly nymph. They are sensitive and their presence indicates good water quality. October 2017, Lawson Creek. Photo: P. Ardill.

Mayfly nymph (centre). October 2017, Lawson Creek. Photo: P. Ardill


August and September

We continued working around the detention basin located near the former golf course. Weeds here include Broom, Blackberry, Privet, Lily, Indigofera sp. (planted but not native to the area) and Japanese Honeysuckle. Generally the swamp here is doing well.

The Lawson Butterfly project is picking up some planning momentum and looks likely to spring into action with a pilot project later this year, with the main event taking place next year. “Community involvement” is a major theme.

July 2017

Lots of good things are happening at our ongoing regeneration site between the BMX track and Waratah Street. The BMCC  Bush Regeneration Team has been working in there, and we can really see the difference, especially along the walking track. So thank you to them for this support.  BMCC’s Bushlands Operation Co-Ordinator has also arranged for a bush regeneration contractor to remove another large stand of Privet on this site, and we thoroughly approve of that work too. The plan is to have the contractors working on the site on a regular basis, removing a section of weed each time. The long-term objective is to entirely remove this wall of weeds from the upper catchment of Lawson Creek and restore the native bush.

The bushcare group worked on the newly cleared area on Sunday 16/07/17 and we should be able to control any weed regrowth. Good native plants are starting to establish themselves there. All of this work represents excellent co-ordination and targeting of professional and volunteer work-time and skills and we have reason to suspect that our BMCC Bushcare Officer may have had a role in facilitating this process.

The Lawson Butterfly Project will be commencing in September.

Contractor work on large stand of Privet, adjacent Waratah St., July 2017

Contractor work on large stand of Privet, regeneration site, Waratah St.-BMX track,  July 2017   Photo: P.Ardill

Regeneration site between Waratah St. and BMX track, July , 2017

Regeneration site between BMX track and Waratah St., July 2017   Photo: P.Ardill