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From Jon Lamb Communications
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March 12, 2021

Incorrect plant labelling problem confirmed

Incorrect plant labelling continues to be a significant problem for South Australian gardeners.
More than 55 percent of gardeners responding to a Good Gardening newsletter/ABC TalkBack Gardening plant labelling survey reported an incorrect labelling problem this season.
This is very similar to the 57 percent figure recorded last season.
While there has been a slight (7 percent) improvement in the labelling of tomato seedlings, the survey again confirmed the problem is not confined to tomatoes.
Just over one third of respondents indicated incorrect labelling had also occurred on a range of other plants, particularly ornamentals, herbs, deciduous fruit trees and citrus.
 

Summary of results

Did you have a problem with incorrect plant labelling this season?
Yes    55.5 %
No    45.5 %

Were your tomato plants incorrectly labelled this season?
Yes    48.7 %
No    51.3 %

Were these tomatoes:
In single containers    54.8 %
Seedlings in a punnet 54.2 %

Have you had problems with incorrect labelling on other plants?
Ornamentals 43.8 %
Deciduous fruit trees 26.6 %
Herbs 23.4 %
Citrus 17.2 %

These survey results will be forwarded to representatives of the garden industry for information and comment.
Our thanks to those Good Gardening newsletter readers who took part in this survey.

Warm autumn a boost for beneficial insects

Gardeners who have stopped using toxic chemicals to control insect pests are about to be rewarded – big time.
Following warm, dry autumn conditions, there has been a big build-up of hover flies, assassin bugs and predatory wasps.
These are the good guys and they are currently on a mission to seek out and devour as many caterpillars, aphids and mealy bugs as possible, before they hibernate through winter.
As a bonus, you can expect a big population of pest-destroying beneficials in your garden early next spring.
 

Join SA’s fruit fly eradication program

If you grow fruit and you like the thought of harvesting crops that are not infested with fruit fly, join with your neighbours and carry out a regular check of all fruit still growing on your trees (also windfalls) for signs of fruit fly larvae.
If you are not sure about any critters you find, ring the Fruit Fly Hotline
1300 666 010.

Check PIRSA's fruit fly outbreak map »
 

Feed fruit trees after harvest           

Once harvest is over fruit trees should be rewarded with a small quantity of balanced fertiliser (nitrogen, phosphorus and potash). 
This will help improve both flowering and fruit set next spring.
Follow the product's application rate carefully, as manufactured fertilisers are more concentrated than organic products. 

Leafy landscape sets off a stately villa

⁠This large, leafy garden beautifully complements the architecture of the lovely old villa-style home.
Beneath big trees, expansive lawns are bordered by lush garden beds filled with flowering plants and a sprinkling of contrasting silver foliage.
⁠The garden and its professionally-designed landscape is one of 12 which will be open to the public during the SA Landscape Festival on the weekend of April 10 and 11.
Hedges add a dash of formality as well as loosely creating garden ‘rooms’. Several superb sculptures enhance the planting.
The outdoor entertainment area, along with the fire pit, tennis court and pool, all softened with an easily-maintained garden make this the perfect lifestyle property.

Caroline Dawes - Milswood »

Open Saturday & Sunday , April 10 & 11 – 10 am to 4 pm

Innovative design ideal for entertaining

A surprising number of productive plants have been cleverly and creatively combined with ornamentals to make an inspiring garden space suited to relaxation and entertaining.
Several contrasting but complementary surface materials have been used unconventionally and add to the individuality of the garden, which also features in the SA Landscape Festival.
A firepit and a wow-factor feature created from tall tubular planters add to the innovative character.
Dotted with fruit trees, vines, veggies and herbs, this garden is far from the traditional productive plot!

Yardstick – Prospect »

Open Saturday & Sunday , April 10 & 11 – 10 am to 4 pm

More information and the complete SA Landscape Festival program and ticket purchase here »



Learn how a professional landscaper can help you »
 
Feature plantsof the week

Brighten your garden with viola faces

Bright little flowers or ‘faces’ on violas literally jump out at you, providing an abundance of colour and character to your garden.
Flowering from autumn through to late spring, these annuals provide months of colour.
Violas are best grown in all-day sun with good drainage.
They look great planted as a border, in a garden bed or just softly spilling over pots.
Viola flowers have a lovely soft fragrance and are easy to pick. As the flowers finish, Easy Colour suggest you remove any spent blooms to encourage repeat flowing.
They also recommend using a liquid fertiliser every 2-4 weeks to keep plants thriving and blooming for longer.
When buying violas look for Easy Colour’s distinctive purple cell packs. The cells are larger than other seedling punnets and designed to reduce transplant shock, ensuring your plants begin growing straight away.

Violas are in stock at Heyne's Garden Centre, Beulah Park, Semaphore Pets & Gardens and Barrow & Bench, Malvern and should be available at other good gardening centres.

Sundancers fuchsias for all seasons

Sundancers are a new type of fuchsia selected for their ability to tolerate hot summer weather and to flower consistently all year round.
This tolerance to heat comes from a root system that is more widespread and much deeper than most hybrid fuchsias.
The result is a strong growing bush, up to 2 m high and 1.5 m wide.
Don’t be surprised if your Sundancer fuchsia bushes are in bloom all year.
In SA growing trials Sundancers have flowered consistently, unprotected (including summer) over the past two years.
In the garden, mulching is recommended, as it is important to keep the soil around their roots evenly moist.
Too keep the plants flowering profusely, regular fertilising is also recommended.
However, container-grown plants will benefit from light shading through the hotter months.

Proven WinnersFuschia Sundancer are in stock at Heyne's Garden Centre, Beulah Park, Semaphore Pets & Gardens and Barrow & Bench, Malvern and should be available at other good gardening centres.
Unconditional Love

Unconditional Love – a beautiful new pink rose

Unconditional Love is a gorgeous pink hybrid tea rose and a sport from the favourite “Love You” rose.
The bushes produce large, pointed buds that are medium pink all over.
These unfold to form beautiful spiral shaped blooms. The foliage is lush dark green and has a silvery reverse.
This is a perfect rose for picking as a cut flower – it has very strong fragrance.
Unconditional Love is a tall bush up to 1.6 m high and produces a prolific number of roses, creating an awesome display in your garden.
Unconditional Love is a new release rose that has just been listed at Knights Roses for pre-ordering with delivery during winter.

Knight's RosesMore information »

Knights' Roses, one of the largest rose growers and suppliers in Australia, offer a comprehensive collection of rose bushes to both wholesalers and the public. 44 Jack Cooper Drive, Gawler, SA. Phone (08) 8523 1311.
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How safe are animal manures         

Many gardeners like to use animal manures as an organic fertiliser when growing vegetables.   
While a number of pathogens in animal manures can cause illness, E. coli is of particular concern, as you only need a few microbes to cause human health problems. 
E. coli is also incredibly robust, surviving extended periods of drought and low temperatures.  Fortunately, it is destroyed by heat, particularly cooking.
 

Reducing animal manure risks   

In the home garden, the biggest risk occurs when the animal manures are fresh. 
  • Ageing animal manures (3-4 months) helps reduce the risk.
  • Composting destroys the bacteria providing the compost generates considerable heat.
  • Soil incorporation will also eliminate the risk as the E. coli bacteria will be destroyed by beneficial soil microbes. However, you should wait six to eight weeks before replanting vegetables.

A better way to control damaging lawn grubs

If you are relying on spraying your lawn continually with toxic chemicals to control lawn grubs, there is now a safe and effective alternative.
A new lawn product Grub Kill and Protect for Lawns, released by Yates contains acelepryn – a new-age chemical that stops lawn grubs, particularly lawn beetle grubs, in their tracks.
Acelepryn is a new class of chemistry that stops lawn grubs from feeding.
It’s action is rapid and it will continue to protect lawns against curl grubs along with a wide range of other common lawn pests for up to 6 months
The Yates product is an unscheduled poison and it has a low toxicity to most non- target organisms.
It is safe to use on all types of lawn including lawns in council playgrounds.
It is also safe to bees and earthworms.
Yates Grub Kill and Protect for Lawns is available from most garden centres and garden outlets.

 
More information »

End-of-season control for codling moth

Codling moth populations can be reduced significantly at the end of the fruit growing season by taking advantage of the grub’s need to over-winter in cracks and crevices of the trunk and branches of host trees.
Early in autumn, try wrapping a 20-30cm wide piece of corrugated or thick cardboard around the trunk of your tree. 
For large fruit trees, also wrap the lower section of main branches.
As the crops mature, the grubs exit the fruit and will seek over-wintering refuge behind the cardboard, rather than search for a suitable winter hiding place. 
The cardboard should be removed and destroyed early in winter along with the overwintering larvae.

New organic fertiliser for all garden plants

eco-aminogro is a certified organic liquid fertiliser made from recycled marine wastes and is high in valuable amino acids.
It is rapidly absorbed by plants, resulting in better growth, healthier plants, bigger flowers and more fruit.
OCP eco-aminogro is perfect for use on veggies, flowers, natives and pretty much everything else.

eco-aminogrow  is available from hardware stores, nurseries, supermarkets and online »
The full range of eco organic garden products and advice is here »

Vegetable caterpillars are easy to control

The sudden appearance of smooth-edged holes (ranging from very small to quite large) in recently established leafy vegetables, particularly cabbages and broccoli, is a good indicator of caterpillar damage. 
Caterpillars are very easily controlled by spraying plants with Spinosad Ultra – a non-toxic chemical that stops the caterpillars from feeding (immediately) without affecting other insects or wildlife.
 

Ideal conditions for powdery mildew

Cool, moist nights followed by mild to warm days provide ideal conditions for the fungus disease, powdery mildew.
This fungus can quickly devastate plants that are not growing vigorously.
Vegetables, such as tomatoes, zucchinis and cucumbers are very prone to attack, particularly as they reach the end of their life.
Roses, grape vines and crepe myrtle are also very susceptible.
Try spraying with eco-fungicide or milk (1 part milk to 10 parts water).
 

New geraniums grow readily from cuttings            

Early autumn is a good time to strike cuttings from those new high performing "Big" geraniums. 
Take tip cuttings 6-8cm long, place in moist (not wet) coarse washed sand and locate in a shaded, protected position.
Keep the propagating material on the dry side.
Rooted cuttings should be ready for potting on early in spring.
Other plants that grow readily from autumn cuttings include coleus, begonias, fuchsias, grevilleas and correas.
Lawn Care – Stefan Palm, Paul Munns

The importance of fertilising lawns in autumn

Tradition says you should fertilise your lawn in autumn. But why is this so important?
Conditions in the garden during autumn, particularly the weather, vary from one season to the next.
So how do you manage to get the timing right?
In this week’s lawn blog turf consultant Stefan Palm not only considers the importance of fertilising your lawn in autumn, he also explains what you should look for in a typical lawn fertiliser

More information »
Paul Munns Instant Lawn

Get ready to plant spring bulbs  

It will soon be time to plant out spring flowering bulbs. 
New varieties are being featured in nursery catalogues and in many retail outlets.
Now is the time to dig the ground and incorporate compost, aged animal manure or complete fertiliser.

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.

Open GardensOpen Gardens SA

Saturday &Sunday, March 13 &14
The Little Big Garden
8 Fleet Street, Bridgewater
There is so much to like and learn in this young gardening professional’s home patch! Adam Hancock lives, breathes and works with plants and in his own modest sized garden, the space is cleverly used and the planting is inspirational.

More information on the garden and directions »

Gardens open 10 am to 4.30 pm.
Entry $8 - OGSA members; $6 - Government concession card holders; children under 18 free.

More information on the 2021 season »

Weather forecasts

Talkback Gardening tomorrow

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

Matt Coulter, horticultural curator at the Adelaide Botanic Gardens, provides a mini plant propagation masterclass on how to grow popular garden plants from autumn cuttings.

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
If you go down to the woods today, you’re sure of a big surprise!!!
‘Teddy Bear’ Magnolia now in store.

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
Outdoor Pot SALE. Make an offer – we're in for a good barter on a huge range of outdoor pots!  One-offs and last season's stock must go to make way for all the fabulous new designs that arrived this week.
We have a special this weekend only when you spend $50 or more and tell us that you love Jon Lamb, you get a free coffee from Sarah's sisters. Now that's Worth the Trip!

Always 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
The garden centre is brimming with flowering perennials this week, including guara, gerbera and geraniums – dahlias, daisies and salvias too.
Specialising in providing quality plants and expert garden advice. Follow the Instagram feed »

Coming soon

Saturday & Sunday, March 27 & 28
Bromeliad Society Annual  Show and Sales Extravaganza
Maltese Cultural Centre, 6 Jeanes St, Beverley. Sat 9am - 3pm, Sun 10am- 3pm. Free entry both days.

Saturday & Sunday, April 10 &11
Autumn Plant Sale - Australian Plants Society (SA Region)
Adelaide Showgrounds, Wayville. More information »

Saturday & Sunday, April 10 & 11
Barossa Rose & Flower Show
Rose Society of SA. Sat noon to 5.30 pm, Sun 9 am - 5.00 pm.Barossa Nursery, 3186 Barossa Valley Way, Nuriootpa.

Saturday & Sunday, April 17 & 18
Rose Society of South Australia Autumn Rose Show
Sat 10 am - 4 pm, Sun 10 am - 4 pm. Noel Lothian Hall, Adelaide Botanic Garden.

People Choice Rose Trial Gardens 2021
Adelaide Rose Trial Gardens, Adelaide Botanic Garden, 10 am - 4 pm both days.

Saturday & Sunday, April 24 & 25
Festival of Flowers
St Pauls College, 792 Grand Junction Road, Gillies Plains.
More information »

Saturday & Sunday, May 8 & 9
Enfield Horticultural Society Autumn Show
Klemzig Community Hall, 242 North East Road, Klemzig.  Sat 12 noon - 4 pm. Sun 10 am - 4 pm, Admission $2.  Competitions in cut flowers, bonsai, fruit, home produce, junior sections and floral design.  Plants for sale and a trading table.

Regular garden attractions

Check with each venue's web site for any Covid-19 restrictions on opening hours.

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 » Facebook »

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 and 2 pm.
More information »

Old Government House, Belair National Park
The former vice-regal summer residence of some of the early governors of South Australia.  An excellent example of Victorian architecture, set amongst one acre of magnificent gardens. Features cottage plants and flowers cultivated in Victorian times, heritage roses and mature trees.
Tours and  afternoon tea on the first and third Sundays each month and public holidays, 1 pm – 4.30 pm. Free entry into Belair National Park if you are visiting OGH - tell the info office staff as you drive in.
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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