From Jon Lamb Communications
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August 7, 2020

Early spring spraying 

Take a close look at your stone fruit trees. It's likely buds on early-flowering varieties are starting to swell and crack open.
Peaches, nectarines, almonds, cherries, apricots and to a lesser extent plums, are all susceptible to a range of fungal spots and rots.
The best way to prevent damage is to spray your trees with a protective fungicide before the buds begin to open.
Liquid copper fungicide is recommended as it spreads more evenly and persists much longer, (particularly in showery weather) compared with other copper-based products.

Beware of peach leaf curl

Over the next few weeks myriads of leaf curl fungal spores will be released from cracks and crevices within the branches of peach and nectarine trees.
Those landing on unprotected leaf buds will quickly take hold, causing the leaves to distort soon after they emerge.

Dwarf trees most susceptible

Most dwarf stone fruit varieties break dormancy 10 to 14 days before traditional varieties.
As a result, they begin flowering when conditions are often very showery and the incidence of fungal spores is generally very high.
The only way to prevent leaf curl is to spray the trees thoroughly, just as the buds are starting to swell, but before the buds have opened.  In many gardens that’s right now.

Cold weather continues

After almost a week of cold and often frosty nights, Adelaide soil temperatures are currently 2 to 3° below their August average. (10 to 11°C).
Feature plantsof the week
The Golden Child
The Golden Child

Top performing yellow roses

When it comes to selecting roses for your garden, bushes with yellow blooms are always in demand. Wagner’s Rose Nursery selection this week includes two of Brian Wagner’s favourites.
The Golden Child. Released just a few years ago, winner of important awards and considered one of the best yellow varieties currently on the market:
Compared to other yellow roses, the Golden Child comes with brighter, longer lasting canary yellow flowers.
These are bigger, more fragrant and produce clusters of flowers with about 35 petals. 
The canopy has glossier foliage, handsome mahogany new growth and vastly improved resistance to rose disorders. (Height 120cm)
Gold medal winner in 2013 and judged the Australian Rose of the Year 2013.

Golden Eye is the latest in the Eye series from Chris Warner.
This rose has beautiful double golden yellow flowers featuring a bright red eye.
Very healthy foliage and a very vigorous growth habit. (Grows 1.2 metre by 1.2 metre.)
WAagners Rose Nursery
Golden Eye
Golden Eye

Lomandras – hardy, attractive Australian grasses

Lomandras are attractive Australian native grasses, with the latest Natures Décor range selected for their ability to thrive in a wide range of landscape and gardening conditions.
The plants form a neat, attractive dome or ball of thin, mainly light green foliage that can be upright or weeping.
Natures Décor Lomandras are incredibly hardy and adapt to a wide range of garden soils providing drainage is not a problem.
These are great plants when mass planted to form a groundcover and are invaluable when a hardy low maintenance edging plant is needed.
  • Lomandra Lime Divine (aove left) has soft weeping lime green foliage with spikes of bright yellow flowers through spring and summer.
  • L. Little Pal (above right) is a very hardy form with thin upright foliage (50 to 60 cm)
  • L. Little Con produces a small rounded dome-shaped plant (30 cm x 30 cm). Small spikes of green flowers in spring.
Lomandras are in stock at Heynes Garden Centre, Norwood , Semaphore Pets & Gardens and Barrow & Bench, Malvern and should be available at other good gardening centres.

Native daisy with jumbo-sized blooms

Wow! Jumbo sized daisy flowers on an ever-popular native Brachyscome.
Brachyscome Elite Jumbo Mauve, a new release, is an extremely hardy, low growing, but improved form of this colourful native plant.
The jumbo sized flowers stand proud above the foliage while their soft mauve colour looks good in any garden bed.
The flowers also blend well when planted together with other pastel tones.
Elite Brachyscome are low growing and very adaptable to coastal gardens, rockeries or may be planted underneath trees.
You can even pop them in baskets or troughs.
Grow in full sun or part shade but make sure they have good drainage.

Elite seriesBrachyscome Elite Jumbo Mauve and  in stock at Heynes Garden Centre, Norwood , Semaphore Pets & Gardens and Barrow & Bench, Malvern and should be available at other good gardening centres.

Early pruning creates citrus gall wasp problems

Early winter pruning to remove citrus galls is no longer recommended as it stimulates soft new spring branch growth. (See the autumn-pruned branch pictured above.)
This is favoured by the citrus gall wasp when it lays its eggs during mid spring (late October early November).
Gall removal is best delayed until early September.
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Liquid fertiliser worth considering        

Those winter-flowering seedlings you planted back in autumn should now be providing welcome colour. 
To improve their performance and keep them flowering longer, consider a fortnightly application of liquid fertiliser.
Don’t forget the flowering bulbs.
Lawn Care – Stefan Palm, Paul Munns

Late control for winter grass

Anyone who has winter grass in the lawn will know how difficult it is to control.
Left unchecked, this invasive, fast-growing grass will quickly spread across your lawn – causing major problems in the season ahead.
It raises the question – once you have winter grass can you get rid of it? If so how?
Considering the constant number of winter grass enquiries sent to turf consultant Stefan Palm, the reason why this weed such a problem and just as important its control is the topic for this week’s lawn blog.

More information »
Paul Munns Instant Lawn

Keep houseplants on the dry side     

The next four to six weeks are vital for most houseplants as they are developing new feeder roots to begin next season's growth.
During this period the roots have a bigger than normal need for air (easily displaced when you overwater).
Allowing the potting mix to dry out completely on the surface in between watering will ensure it contains plenty of air at this critical time of the year.
Soil in containers more than 20cm deep should be allowed to become dry to a depth of 2 to 3 cm before re-watering.

When a quick fix is needed

In many garden the leaves on citrus along with a range of ornamentals have developed a serious case of “Winter Yellows”.
The quickest way to fix this problem is to spray the leaves with a soluble fertiliser as they contain a balanced blend of nutrients, including trace elements formulated to be absorbed directly into the leaves.
More on overcoming Winter Yellows in my Advertiser gardening column, tomorrow.

Please keep your questions for Talkback Gardening

Good Gardening  is unable to answer individual reader's questions via email.
If you're looking for specific gardening advice please give me a call on ABC Radio Adelaide's Saturday morning Talkback Gardening  or speak to the experts at your local garden centre.

Talkback Gardening tomorrow

ABC Radio Adelaide Talkback Gardening this Saturday, 8.30 am to 10 am – phone me and Deb Tribe on 1300 222 891 and have your own gardening question answered.

Taking the mystery out of garden fertilisers
Consulting soil biologist Dr Uwe Stroeher looks at fertilisers from the plant’s point of view.

Garden centre directory

Leading Adelaide garden centres recommended by Good Gardening newsletter.

Heynes Garden Centre

Heyne's Garden Centre
283-289 The Parade, Beulah Park. (08) 8332 2933
It’s all about citrus now. Get them ready for spring!
We’ve got you covered with all that you need.

South Australia's oldest established garden centre. Huge range. Expert staff on hand for personal advice. Visit online »

Semaphore Pets & Garden
Semaphore Pets and Garden
119 Semaphore Rd, Semaphore. (08) 8242 7302
XXX We have plenty of roses arriving this week and 3 pallets of indoor pots have been priced and displayed. XXXX
Always has a great selection of plants, pets and giftware – all under the one roof.
Facebook »

Barrow & Bench
Barrow & Bench Mitre 10
321 Unley Rd, Malvern. (08) 8272 8566
Great range of indoor plants, and fabulous pots to match – from cheap and cheerful, to lovely designer pieces there is something for everyone at Barrow & Bench.
Specialises in providing quality plants and expert garden advice.
Follow the Instagram feed »
Weather forecasts

Coming soon

Thursday, August 20 to Sunday August 23
South Coast southern Orchid Club winter show and display
Victor Central Shopping centre, Torrens Street, Victor Harbor

Saturday & Sunday August 29 & 30
Riverland annual spectacular
Town Hall, Wilson Street, Berri.

Saturday & Sunday, September 12 &13
Australian Native Plants Sale
Jubilee Pavilion, Adelaide Showgrounds. Sat 10 am - 4 pm; Sun 10 am - 3 pm.
A list of plants available will be on the Australian Plants Society website the week before the sale »

Saturday, October 24
Begonia and Fern Spring Show 2020
Klemzig Community Hall, 242 North East Rd.

Regular garden attractions

Adelaide Botanic Gardens – free guided walks
Friends of the Botanic Gardens of Adelaide guided walks for the public at Adelaide, Mount Lofty and Wittunga Botanic Gardens, and Botanic Park.
More information »

Carrick Hill

Heritage house museum and garden, the former home of Sir Edward and Lady Ursula Hayward. Open weekends & public holidays. Free admission into garden and grounds. 46 Carrick Hill Drive, Springfield.
More information »

Cummins Historic House and gardens
23 Sheoak Ave, Novar Gardens. Gardens open and plant sales on 1st & 3rd Sundays of each month (except Dec & Jan) 2 pm - 4.30 pm. Plant sales also available every Friday morning 9 am to noon. More information »

Heysen - The Cedars
The historic home of two of Australia’s most noted artists, Sir Hans Heysen and his daughter Nora. This unique 60-hectare heritage estate features the original family home, two artists’ studios and the celebrated cottage-style garden, planted chiefly with exotics, including the massive Himalayan cedar trees.
Heysen Road, Hahndorf. Open 10 am - 4.30 pm, Tuesday to Sunday, and also open on public holiday Mondays. Ticketed entry, including guided tours at 11am, 1pm and 3pm.
More information »

Urrbrae House historic precinct gardens
At the end of Walter Young Avenue, off Fullarton Road, Urrbrae, or from the Urrbrae House gate, Claremont Avenue, Netherby.
Open from dawn until dusk every day. Free entry.
More information »

Waite Arboretum, Fullarton Road, Urrbrae
Open free to the public every day of the year from dawn to dusk, except on fire ban days. Free guided walks on the first Sunday of every month, 11 am to 12.30 pm.
Meet at the West lawn (Croquet Lawn) of Urrbrae House. Bookings not necessary.
More information »

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Disclaimer: Although all reasonable care is taken in preparing information contained in this email, neither Jon Lamb Communications (JLC) nor its officers, staff or suppliers involved in the editing and production of this email accept any liability resulting from the interpretation or use of the information set out in this document. Information contained in this document is subject to change without notice and is of a general nature and should not take the place of professional personal advice. No responsibility is accepted by Jon Lamb Communications for the accuracy of information contained in web sites linked from this email. Publication of an advertisement does not constitute endorsement by JLC of any product or service, or warrant its suitability.

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