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queenslandgardening.com

a companion to the Queensland Gardening Pages at www.calyx.com.au   

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to Queensland's gateway to gardening

A collection of news, information and resources of interest to gardeners, especially residents of Queensland, Australia.

News for Gardeners

News about plants and gardens in Queensland, plus other interesting items from around the world.

New hope for rare Westringia
The Snowy River Westringia (Westringia cremnophila), last seen in the wild in 2002, has been found again. They only occur on sheer cliffs along a short stretch of the Snowy River requiring white-water rafts to access. The relatively high number of plants found on this expedition (only four were seen in 2002) was a good sign for the survival of the species, but cuttings were also taken for propagation at the Royal Botanic Gardens Melbourne. Source: Living on the Edge! - Rare plant continues to hang on (December 2011)

Legumes invite rhizobial bacteria in
Some more light has been shed on the special relationship between nitrogen-fixing bacteria and their legume hosts through recent UK research. After recognising a signal from the bacterium, the plant actually allows controlled access by supplying enzymes that break down the plant cell walls, guiding it to the correct cells for nodule formation. Source: Legumes give nitrogen-supplying bacteria special access pass (December 2011)

Landsborough environment to benefit from new nursery
With the help of Sunshine Coast Council, Barung Landcare will soon have a native nursery in Landsborough on the site of a former ostrich farm. It will supply the area with plants grown from locally collected seed. Read more at the Council's website: Council support for Barung Landcare (December 2011)

Into Horticulture Issue 5 online now
This online newsletter is aimed at the expert amateur gardener plus professionals in the nursery and garden industry, especially in Queensland. View the November edition here: Into Horticulture - Issue 5

Night-flowering orchid discovered
The first known night-flowering orchid has been discovered on an island near Papua New Guinea. Even though many other orchids are pollinated by moths, their flowers remain open during the day. In contrast, the flowers of Bulbophyllum nocturnum open after dark and close in the morning. They last only one night. It"s pollinator is as yet unknown, but could be a midge. Source: World's first night-flowering orchid is discovered (November 2011)

Space research provides hints for earth
Scientists developing methods for growing food in space have found that sweet potatoes can be trained in a compact vertical arrangement without sacrificing yield, provided the main shoot is retained. Side shoots can be trimmed away, while the main vine is wound around cylindrical or conical cages. The researchers say that hormones produced at the shoot tip stimulate root devopment. They also say that sweet potatoes are a relatively unfussy crop, making them ideal candidates for the "generalized-growth environment" likely in future space agriculture. Source: Thanksgiving in space may one day come with all the trimmings (November 2011)

Youth to benefit from Caboolture community garden
The Salvation Army Youth Outreach Service at Caboolture has secured a grant from Moreton Bay Regional Council to equip a new community garden at Caboolture. The new veggie patch, an exentension of a successful program at Lawnton, will help teach a variety of skills to young people at risk. Source: Veggie Patch grows from strength to strength (November 2011)

Cannonvale Botanic Gardens ready to plant
Planting will start soon at Cannonvale Botanic Gardens. Two themed areas, the "Beach Rainforest Garden" and the "Dune and Swale Garden" will be part of stage one, with stage two anticipated to begin mid 2012. Whitsunday Regional Council hope that the gardens will eventually become a tourist attraction for the Cannonvale and Airlie Beach area. Media release: Planting to start in Botanic Gardens (PDF) (November 2011)

Tree plantings honour centenarians
Fraser Coast Regional Council is continuing to recognised its centenarian residents with ceremonial tree plantings celebrating their 100th birthday, a practice started by the former Maryborough City Council prior to amalgamation. The latest resident to be honoured is Moya Bowman, who will plant a Queensland Firewheel Tree (Stenocarpus sinuatus) in Tiaro Memorial Park. The plantings (which are complemented by a plaque with the centenarian's name and birth date) are arranged at the request of the families. Learn more at the Council's website: Centenarian Tree planting at Tiaro (November 2011)

New fire ant incursion thwarted
A nest of fire ants in crated mining equipment imported from Houston, Texas has hopefully been prevented from turning into a new fire ant outbreak. Biosecurity Queensland has praised the detection and prompt reporting of the suspect ants by vigilant employees of a Roma mining company. The nest was quickly dealt with and will be followed up with preventative bait treatments and an investigation. The equipent was due to be shipped to Perth. Source: Quick notification saves potential fire ant threat to Roma (November 2011)

New Redland Bay islands plant ID book available
Volume 2 of "Native Plants of the Bay Islands" has been launched by Cow Bay Bushcare Group. For more information including where to obtain the book, go to the Redland City Council website: Bushcare group launches second volume of plant reference book (PDF) (November 2011)

Awards recognise social housing gardeners
The Queensland Government Social Housing Garden Awards have been announced: Ingham green thumbs take out prizes (November 2011)

Salvinia inspires engineers
In another example of plant design inspiring industrial advance, the aquatic weed Salvinia has helped engineers develp a new plastic coating. The leaf is covered with specialised hairs which help the leaf cling to the water's surface (aiding stability) while at the same time trapping air to assist bouyancy. Mimicking this arrangement has led to a coating that could be developed for use on watercraft with similar effect. Learn more at the Ohio State University website: Plant with "eggbeater" texture inspires waterproof coating (November 2011)

Madeira vine biocontrol program underway
A beetle from South America has been released in various locations in SEQld as a biocontrol against Madeira vine (Anredera cordifolia). Biosecurity Queensland says that it's been tested on 37 related plant species without damage. Results from the first release are promising, and more releases are planned in infested areas over the next two years. Source: Small beetle to control a big problem (November 2011)

Garden market trends in UK
Horticultural Trades Association has found this sector relatively healthy compared to many other parts of struggling British economy. Outdoor living and grow-your-own trends remain strong. Their study of the market highlights the increasing importance of mobile internet in retailing, and the role older gardeners play in passing on advice and information to younger relatives. There has also been a marked increase in people wanting to encourage wildlife in their garden. Media releases: HTA Market Update reveals opportunities to embrace new technology and reach younger gardeners and HTA report reveals bird care market is on the rise (October 2011)

Cycads not so ancient
Our perception of cycads as ancient plants will have to altered a little in the light of recent research results. While cycads did exist in the time of the dinosaurs, molecular analysis of two-thirds of the world's living species indicates that contemporary cycads have evolved more recently. Read more at the University of California Berkeley website: Cycads are not "living fossils" from Dinosaur Age (October 2011)

Logan Garden Comp Winners
Logan City Council have announced the winners of the 2011 garden competition: Garden competition comes up roses (October 2011)

Bourbong Street to become avenue of gold
A staged replacement of unsuitable trees along the Bourbong Street, Bundaberg centre median is schedules to begin mid-October. The existing trees including fig, camphor laurel, Bunya pine and hoop pine, are weeds specie or interfering with powerlines. They will be replaced with an avenue of golden penda. Source: Bourbong Street tree replacement project begins (October 2011)

2012 Carnival a great success
Toowoomba Regional Council reports that a record number of people attended this year's Carnival of Flowers. In addition to the garden competition and displays, and the great spring weather, the food and wine component of the modern Carnival is credited with contributing to it's success. More information at the Coucil's website: Record visitor numbers add to 2011 Carnival lustre (October 2011)

Caution advised with "non invasive" cultivars
U.S. researchers warn that some plant cultivars being promoted as "non-invasive" could still spread if they retain the ability to produce some viable seed. Apart from the total number of seed that could be produced over the life of a long-lived species, the offspring could be more prolific, especially if they result from crossing with other cultivars or relatives. They suggest that population growth rate and the likelihood of the plant breeding true from seed be considered when assessing invasiveness, unless it can be proven to be completely sterile. Media release: "Non-invasive" cultivar? Buyer beware. (October 2011)

Somerset supports Land for Wildlife
Somerset Regional Council will be joining the Land for Wildlife program for 2011-2015 period, funding activities such as property assessments and community field days and helping landowners learn how to protect flora and fauna on their properties. More at the council's website: Land for wildlife program back in the Somerset region (October 2011)

Urban trees' filtering effects examined
Research estimates that urban trees in the Greater London Authority area remove between 850 and 2000 tonnes of particulate pollution from the air every year. There are plans to increase tree planting in London and the rest of the country, and the methodology used in the study could with help with species selection and location of planting with respect to this form of pollution and its asssociated human health effects. Source: New study shows how trees clean the air in London (October 2011)

Kholo Gardens restoration has many benefits
Badly damaged in the January floods, Kholo Gardens are to be restored through a partnership of Ipswich City Council, Powerlink Greenworks Program and Boys Town. Besides the general ecological and community benefits that removal of debris, re-establishment of walking tracks and erosion stabilisation will provide, the project will mean eight paid jobs and accredited training for young people. Source: Partnership to restore Kholo Gardens (September 2011)

Awards for Gold Coast parklands
Broadwater Parklands on the Gold Coast has won two categories in the national Parks and Leisure Australia Awards of Excellence - and the Award for Open Space Development and the Award for Sustainable Initiatives. Features of the Parklands includes stormwater filtering, solar power, furniture made from recycled plastic. Source: National recognition for Broadwater Parklands (September 2011)

Pitcher plant could revolutionise housework
Inspired by the slippery surface of a pitcher plant's trap, scientists have developed a material that repells a wide range of liquids and solids, even under harsh conditions. It has potential in a wide range of medical and industrial applications, including self-cleaning windows and anti-graffiti coatings. Source: Slippery slope:Researchers take advice from a carnivorous plant (September 2011)

Roots' modification of soil moisture a suprise
Plant roots and associated micoorganisms alter the soil environment in a variety of ways, but it has recently been discovered that there is actually more water within a few millimetres of roots than the rest of the soil. This runs counter to previous assumptions. The mechanism may be water-holding gels exuded from roots, which can then act as a temporary water supply and help maintain plants for a few hours if soil moisture becomes inadequate. The future breeding of drought-tolerant plants or development of more efficient irrigation systems could be influenced by these findings. More information from Helmholtz Centre for Environmental Research, Germany: Plants create a water reserve in the soil (September 2011)

Cairns Regional Council Streetscape Awards
2011 Results available at the Council's website: Awards Celebrate Local Gardeners (September 2011)

Gold Coast corridor network develops
Aquisition of 116 hectares in Cedar Creek by Gold Coast City Council will form a link between two major wildlife corridors. Flora and fauna surveys will now proceed to assist with management of the property. Koalas and grey goshawks have previously been recorded in the area. Source: Purchase cements two vital wildlife corridors (September 2011)


Some older news items of continuing interest have been moved to an appropriate subject page at www.calyx.com.au. Check the Guide to Pages.

The editor would like to hear from anyone who has news to share on the topic of plants or gardens. Contact Details
 
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Garden Blogs
from Queensland
for more garden news, trends & opinion

Jerry's blog Jerry Coleby-Williams
ecobotanics blog Clair Levander
Mud Pie Brisbane
Gustoso Vegetables in Brisbane
Bountifully Brisbane
Hoya Garden Brisbane
Frog Garden Brisbane
random plantings Samford Valley
Africanaussie North Qld
Resort Style Living Tom Robinson Living Landscapes
Got a blog? If you write about Qld gardens and your blog isn't listed, get in touch.

Garden Blogs & Forums
from Australia
selected links with national scope

Find more graden blogs from Australia & the world at Blotanical
 


In the garden in January

Other Months

NB: These notes are under ongoing development. At present, the following applies to the greater Brisbane region only. It's hoped to expand on these notes in future updates, adding more details and eventually, more regions.

Naturally, this is a general guide only and will vary depending on local conditions, weather, plant variety etc. Ongoing water availability is also a big concern these days, so take this into consideration too, especially if planning new gardens.



What's your gardening resolution for 2012?

With the turn of the year and holidays for some, it's a time for assessing the past and contemplating the year ahead. Perhaps you've decided that this is the year to focus on the home front, and get into the garden. What's your gardening resolution?

Tidy Up. Perhaps you've let things go and just need to catch up with basic maintenance. Pruning and weeds are likely to be on your list, especially if the summer is wet. If it's all gotten out of hand, you might consider bringing in a garden maintenance service to get the job done before it gets any worse. If you really don't have the time or physical ability to maintain the garden in it's current state, think about modifying your garden design (e.g. replacing roses with other shrubs) or alter your practices (e.g. better mulching to reduce weeding).

Create or renovate an outdoor living area. Outdoor Living and Balinese or "resort style" gardens have been a big trend of recent years. While some of the more expensive landscaping and accessories (like outdoor kitchens) might not be seen as often in new gardens of the future as they were during the "boom" years, an outdoor living area that's functional, comfortable and attractive could enhance your enjoyment of your home. Even if you can't afford a deck or patio right now, think about the vegetation beyond. While you can get fast tropical effects with some plants, trees and shrubs need time to achieve height and fullness. The sooner you can get them planted, the sooner you can enjoy the benefits. This is especially important to remember if you want to block neighbours. Some researching the species you might want to grow is an ideal rainy day activity.

Start growing food. "Grow your own" has been another big garden trend internationally over the last few years. Some people like to know what chemicals have been on their food, some enjoy the educational and recreational aspects. If household budgets continue to be sqeezed, more people may turn to the backyard to save money, but do take into account that in the suburbs most inputs (fertiliser, mulch, seeds etc) need to be purchased and there are many things that can go wrong, especially for beginners. If you're a complete novice, start small and don't be afraid to ask friends and neighbours, or your local garden centre, for advice.

Enter a garden competition. You'll want it to look it's best at judging, which is usually springtime in SE Qld. If you're going to use a lot of flowering plants, timing will be crucial. Spring flowering annuals usually go in autumn, but you can begin preparing now with hard landscaping, soil preparation and lots of planning. Research, observation, and a certain amount of trial and error over many years undoubtedly go into the most spectacular gardens, but don't be deterred if you're new to the game. Some competitions even have special categories for new gardens. To find out what competitions are held in your area, check with local council, local newspaper or garden clubs. Some information may also posted in the news section on the home page here as it comes to hand and on the Garden Competition page at www.calyx.com.au (if you're an organiser, please send in some information!)

More jobs for January

Usually, there's plenty to do in January keeping just the lawns mowed, hedges trimmed, weeds controlled and rubbish collected. If we have more heavy rain this year, your activities may be limted to the absolute essentials. Look for foliage obstructing paths (including the footpath), the letterbox and your house number. Your overhanging branches might be aggrevating neighbours, too. Constantly damp paths and paving may have become dangerously slippery with algal growth.

You might normally think about giving the general garden a feed around this time as well. Nutrients can be leached by the heavy rains and plants might be looking a bit nutrient deficient by now. If downpours continue throughout January, however, a great deal of the fertiliser applied now might be wasted (and contaminate the environment instead). Keep an eye on the forecasts an adjust your fertilisation accordingly. You might consider a light application or even foliar feeding during a break in the weather to keep plants ticking over. Note, however, that waterlogging can also induce deficiency symptoms, so take a look at drainage of any unhealthy-looking plants.

If you haven't mulched in a while, top up garden beds to supress germinating weeds. You should avoid walking over garden soil to minimise compaction, but this should be be particularly avoided while the soils are saturated. Likewise, avoid driving over sodden lawns. This is a good time, however, to manually remove localised weed infestations. Whether hand weeding or spraying, get to work before they set seed. Unfortunately, it is too late to do anything about bindii, except extract the prickles from the soles of your feet. Learn to recognise the foliage and be on the lookout next winter/early spring and attack the developing plants then.

When the sun comes out, take note of where you'd like more shade and try to determine the optimal location and height of shade structures or trees at the time of day you need it. You might like more shade over the entertaining area in the late afternoon, for example (see Outdoor Living). The movement of the sun is different in winter, and you can't use it's position in winter to position shade for summer (you may like to preserve access to sun in winter, on the other hand).

Needless to say, when positioning trees, you also need to take other factors into account such as proximity to buildings, utilities etc. While potted trees and shrubs can be planted at any time in SEQld, you'll probably prefer to wait until it's a little cooler. This will mean less stress for both the gardener and the plant.

With more rain, the pressure may be off watering gardens for a while, but don't forget about your potted plants. They will dry out quickly in hot or windy weather and require regular watering. Don't be fooled into thinking a light shower of rain will do the job for you, because very little, if any, will reach the potting mix of a well-foliaged plant.

If we continue to get drenching rains, on the other hand, constantly full pot saucers can cause waterlogging and rotting of potted plants as well as provide breeding grounds for mosquitoes. Empty these or remove them completely while the rain lasts. Check the garden for other receptacles that could harbour mossies, too.

Be vigilant collecting fruit-fly infested fruit off the ground, to prevent the grubs pupating into a new generation of flies.

Give poinsettias and snowflakes a light pruning to encourage more bushiness prior to the initiation of flowers as the days shorten. Prune gardenias when flowers are finished.

Vegetables

Like December, weather conditions in January are usually harsh and pests and diseases so active that vegetable gardening is difficult, for both the plants and the gardener.

If you want to have a go, try planting tomatoes, capsicums and eggplants; lettuce (heat-tolerant varieties); sweetcorn; radish; silverbeet; beans; cucurbits; sweet potato.

Otherwise, wait until milder temperatures arrive, when a larger range of vegetables becomes more feasible. Furthermore, you'll want to make sure you have space available if you plan to put in a lot of temperate-climate climate veggies in autumn.

Even though they are essentially cool-climate vegetables, the long growing season required for cauliflower or broccoli means making a start while it's still hot. If you want to grow from seed, and you have the space to grow them, you can try starting a few in seed trays or pots for later transplanting. Don't forget that they will be very susceptible to caterpillars at this time of the year, as will other cabbage relatives, so take precautions. Make successive sowings over the next few weeks in case the earlier ones fail, as late as April/May.

Instead, relax in the shade and start planning what you'd like to grow this autumn. Get your order in to mail-order seed companies in plenty of time if you want to try unusual or hertiage varieties not available through regular garden centres and chain stores.

These days, many seed companies have extensive catalogues online. There are also many websites that can give you information about particular vegetables as well as other information and ideas for growing fruit and vegetables as well as the ornamental garden. Bear in mind, however, that the majority of gardening information online originates from cool, temperate or Mediterranean climates, and adjustments need to be made for out subtropical conditions.

Many plants are simply unsuitable for the coastal regions of Qld. Of the vegetables, brussel sprouts and scarlet runner beans are generally considered unsuitable. Others like broadbeans, parsnips and cauliflower are difficult and have to be timed to take advantage of the coolest weather, and results may be dissapointing. Unless you're a huge fan of these vegetables, or if you have plenty of time and space and like a challenge, you'll find it more rewarding to stick to the tried and tested varieties. Furthermore, there's a huge variety of tropical vegetables better suited to the Qld climate that most of us have yet to explore.

See also: Vegetables, Seed raising.

Fruit Trees

Sorry, I haven't prepared any monthly notes for fruit trees yet. In the meantime, you can try the main page dealing with this subject and check the links for the type of fruit tree you're interested in, here: Fruit Trees

The Flower Garden

See also: Annual Flowers and Bedding Plants, Seed raising


Garden shows, open gardens

See what's included in the Events Diary for January, although you won't find a lot of events over the Christmas and New year period. Entries for all of 2012 are welcome now, so if you're organising a garden show, workshop, gardening opening or similar public event in Qld this year and you have firm dates, please get in touch if you would like to have your event publicised for free on that page.



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