From Jon Lamb Communications
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August 14, 2020

Showery weather hinders stone fruit spraying

Welcome rain followed by showery weather is making it difficult to spray stone fruit trees with a fungicide to prevent leaf curl and other fungal spots.
Peaches, nectarines and apricots need to be sprayed with a copper fungicide, before the buds start to open. 
If you are running a bit late and the buds have opened, change to Mancozeb. 
Unlike copper sprays, this fungicide will not affect bees.

Copper sprays – worth knowing

  • It is important to apply a thin layer of copper over all branches.
  • This protective layer will remain effective for 10 to 14 days – less if it subsequently rains.
  • If infection is likely over longer periods or it rains, re-application may be necessary.
  • More frequent applications using lower rates of copper are just as effective and cause less damage to new foliage than applying high rates in fewer applications.

Give new trees top priority

Newly established trees need to retain as many leaves as possible if they are to produce strong vigorous growth. 
However, young trees are very susceptible to peach leaf curl and an infection can result in 30 to 40 percent of the leaves dropping, causing a very serious setback.
All young trees should be sprayed thoroughly with a copper fungicide at least once.
If bud burst is extended over a period, apply a second spray one week later.
More on controlling early-season spots and rots in my Advertiser gardening column, tomorrow.

Fruit trees need fertilising now             

Most fertilisers, whether they are organic or manufactured, take two to three weeks to be converted into a form that is available to fruit trees.
The processes involved in bud burst followed by vigorous new growth, requires  trees to use a large amount of energy.
If they are to produce a bountiful harvest each year as well as healthy new growth, these nutrients must be replaced.
The aim should be to have your fertiliser spread around the trees at least two weeks before bud burst.
In many gardens that’s right now.
If the buds are already bursting carry out this task as early as possible in spring.

How much

As a guide, a large mature fruit tree will benefit from one of the following:
  • 4-6 kg of pelletised poultry manure or similar
  • 1.5-2 kg of standard manufactured fertilizer.
Alternatively, consider blending half the recommended rate of animal manure with half the recommended manufactured fertiliser rate.
To achieve the best results apply half the fertiliser early in spring and the remainder in early autumn or immediately after harvest.
Feature plantsof the week

Great show from Lovie Dovie Happitunias

Lovie Dovie is a show-stopping Happitunia that is constantly covered with eye-catching pink and white striped flowers.
These appear early in spring and continue until the end of autumn.
Because the plants are both mounding and trailing they will fill a large container quickly and once established, trail elegantly over the sides.
The plants are vigorous, hardy, heat and drought tolerant and very easy to grow. The blooms are self-cleaning.
This is a top performing petunia and will respond quickly to regular applications of fertilisers during the warmer months.
Lovie Dovie will grow 30 to 40 cm high and spread 40 to 60 cm wide – ideal for landscaping or for planting in feature containers.

Proven WinnersHappitunias  are in stock at Heynes Garden Centre, Norwood , Semaphore Pets & Gardens and Barrow & Bench, Malvern and should be available at other good gardening centres.

Winx Rose – celebrating the world’s best racehorse

Winx is an extremely elegant garden rose featuring pristine white coloured blooms that are retained on the bush for a very long time. The foliage is dense, dark green and glossy providing a great contrast to the flowers.
The Winx rose also has a compact bushy habit, making it ideal for growing as a single feature, group planting or featuring in a container. This is surely the perfect choice when you want a bright white garden rose.
Definitely one for your list!
More information »
Proudly supporting the National Jockeys Trust .
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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It's another gall wasp

What looks like citrus gall wasp damage on a callistemon bush is, in fact, a gall caused by a native wasp.
Thanks to SARDI entomologist Greg Baker for solving a mystery that arose from a recent question from "Jennifer” on ABC Saturday TalkBack Gardening.
According to Greg many native plants are attacked by different species of wasps.
I have suggested to Jennifer that she remove the affected branches by pruning – making sure she removes any infected branches from her garden.

It's still too cold to plant basil

Garden centres are reporting an early season run on kitchen herbs – particularly basil.
After explaining to customers that basil will simply sit and sulk if it is planted while conditions remain cold, Mark Caldecott at Norwood Garden Centre is suggesting they consider cold-tolerant herbs such as coriander, parsley, chives, oregano, thyme and mint.

Cool season vegetables worth trying

Cold-tolerant vegetables to plant while soil conditions continue to fluctuate between 9 and 11° C , include small conical cabbage, broccoli, silverbeet, lettuce, carrots, beetroot, radish, as well as leeks and spring onions.

Aids for an early spring

Why wait for spring when you can start growing summer vegetables right now?
Tomatoes, cucumbers, zucchinis, in fact most summer vegetables grow readily from seed. 
All they need is a warm well-lit, protected position. A windowsill propagator, or even better, an electrical mini propagator located in a well-lit kitchen or living room, will get you growing.
If you start sowing seeds right now, your plants will be ready for planting into the garden just as soil temperatures begin to rise early in October. 
In most gardens, this is one of the best times for planting out summer vegetables.
Life in the soil – Neutrog

Transplanting and the role of soil microbes

When relocating plants, people often consider things like the roots and perhaps trimming off some of the leaves, so that the root system can sustain the plant.
I would guess that almost nobody thinks about the soil microbes and the role they play in a plants ability to recovery and establish itself.
We know that plants have a very specific microbiome which really just means that different plants in differing soils have varying bacterial and fungal populations – very much like a human’s specific gut microbiome.
You may think “so what”, but plants spend a lot of resources recruiting and Neutrogselecting the exact microbes they require, and these are found in the soil around the roots.

More information »

Good time to move evergreens   

Late August is one of the best times to move established evergreen trees, as any damaged roots will quickly recover. 
After moving, reduce the top growth by 20-30% to compensate for the loss of roots. 
Meanwhile, time is running out fast if you’re thinking of planting deciduous trees.
Try soaking the plants in water (plus seaweed solution) for 2-3hrs before you plant.

Check those outdoor container plants now  

Hardy outdoor ferns in hanging baskets and containers should soon be making new growth. 
If the plants are starting to outgrow their containers, consider re-potting over the next few weeks and take full advantage of this early growth.
Lawn Care – Stefan Palm, Paul Munns

Wet weather activating moss and algae

If you have moss or algae growing in your lawn– you are not alone.
According to lawn consultant Stefan Palm, both these plants are causing big problems at the moment – particularly where the lawn is growing in the shady part of a garden.
In this week’s lawn blog Stefan provides details of an effective solution – an easy-to-use product called Wet and Forget.
In fact Stefan believes Wet and Forget is the ultimate when you need an outdoor moss, mould, lichen or algae remover.

More information »
Paul Munns Instant Lawn

Late call for winter cuttings

Waste no time if you would like to grow new plants from materials left after pruning dormant deciduous trees and shrubs.
Your cuttings should include at least two and possibly three buds or nodes.
These will strike readily in a pot containing coarse, washed sand.
The list of plants that make good cuttings include roses, fuchsias, hydrangeas, abelias, abutilon, plums, vines and wisteria.

Orchid shows returning

Normality is returning to orchid show events and in particular activities for the Orchid Club of South Australia.
The Spring Show will be staged as a two-day event over the weekend of September 19 and 20. This will be the clubs first public Show this year. More information »
Cymbidium plants will be flowering or well on their way early in spring.
Meanwhile, the recent warm spell has accelerated the flowering of Australian native Dendrobiums.

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.

Goodbye winter, hello spring
As the seasons change, Brett Draper, horticulturalist and garden centre manager will discuss what’s available at your local garden centre and recommend what vegetables herbs and ornamentals to plant now.

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
Now’s the time for gorgeous Aussie natives! Boronia, Geraldton wax, correa, grevilleas & many more! Bring the outback to your backyard!
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
Check out the new range of indoor pots. All shapes and sizes.
Don’t forget the potting mix.

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
At Barrow & Bench this week you’ll find potted peony, fabulous flowering natives, loads of luscious lavender and beautiful azaleas.
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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