|
Information about plants & gardens for Brisbane & Qld |
|
Water Plants
and water gardening
Some water plants are serious environmental weeds, or have the potential to become so. It may be illegal to grow certain plants in your locality. If in doubt, consult with relevant authorities. Only buy from reputable nurseries in your area.
Always make sure that your pond plants cannot reach waterways (e.g. through overflow in heavy rain). Of course, gardeners should always try to prevent any plants escaping from their gardens.
News
Floating Gardens
On the Chicago River in Illinois, USA, an eco-park is being developed with floating gardens attached along the shoreline. Although the main purpose of the park is urban beautification, researchers found that even an installation of this scale could make small but measurable improvements to nitrate and phosphate levels. This demonstrates the potential of floating gardens to serve the community and environment above the waterline, while working to clean up city waste or agricultural runoff below it. Source: Floating Gardens: More than Just a Pretty Place (October 2020)
Older news at bottom of page.
Other Information Online
MANY OF THESE OLD LINKS MAY BE NO LONGER FUNCTIONAL BUT ARE BEING RETAINED FOR NOW BECAUSE IT MAY STILL BE POSSIBLE TO HUNT DOWN SOME OF THE LINKED INFORMATION
Please note: The following links are for general information. Some species or cultivars referred to in links may be unavailable in Australia, or illegal to grow in your area.
More links about designing ponds for frogs here:
Wildlife
Pools 'n' Plants The Swimming Pool and Spa Association of Queensland Inc. (SPASA)
Water & Environment Includes "How to create your own wetland". Ipswich City Council/Ipswich Water (PDF)
Victoria Adventure Information about pond plants and water gardening, featuring the giant-leaved
Victoria species. Site based in Florida, USA
Yellow Water Nymphaea mexicana (Invasive) At "Grow Me Instead" Australia
Water Milfoil Myriophyllum papillosum At "Grow Me Instead" Australia
Banded Nardoo Marsilea mutica Aquatic Plants At "Grow Me Instead" Australia
Marsilea drummondii (PDF) at the Australian Weeds and Livestock website, NSW (discusses toxicity of weeds and other plants to animals)
Umbrella Sedge Cyperus involucratus (Invasive) At "Grow Me Instead" Australia
Alligator-Flag Thalia geniculata. Online Manual of Subtropical Landscaping Plants, Palm Beach Community College, Florida
Older News
Natural cleansers inspire lake restoration
Floating islands formed from recycled plastic and planted with papyrus are being deployed to clean the waters of Lake Naivasha, Kenya. Papyrus once grew naturally around the lake, but has been lost to human settlement and the actions of livestock. The artificial islands will be anchored in the Malewa River to catch silt before it enters the lake. The plants should also support a variety of wildlife both above and below the waterline. The region's booming commercial cut flower industry is helping to fund such initiatives. Source: Novel plastic-and-papyrus restoration project (September 2012)
Salvinia inspires engineers
In another example of plant design inspiring industrial advance, the aquatic weed Salvinia has helped engineers develop 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 buoyancy. 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)
Help for Bli Bli pond
Refurbishments to improve water flow and deter nesting ibis and egrets will help address stagnation and algal blooms problems in Bli Bli pond. Sedimentation, bird waste and inadequate flushing have contributed to the poor health of the pond, which was created 50 years ago. Paperbark trees have also suffered, due to the water level being consistently too high.
Council to nurse Bli Bli pond back to health. (
July 2010)
Tiny waterlilly rescued
The work of botanic gardens has saved a rare waterlily, thought to be the world's smallest, from probable extinction.
After its discovery in Rwanda in 1985, specimens were kept alive in botanic gardens in Germany. All attempts to reproduce the plants from seed and grow to maturity like other waterlillies were unsuccessful until a horticulturist at The Royal Botanic Gardens, Kew discovered the key. By more closely matching the damp edges of the freshwater hot spring from which they came, the plants have flowered and set seed in cultivation at last.
Nymphaea thermarum has only been found in one location, and since its discovery all known wild plants have been lost due over-use of the water source. More at the Kew website:
Smallest waterlily in the world brought back from the brink of extinction at Kew Gardens (
May 2010)
Aquatic plant family's secret revealed
An international team of scientists have discovered that the aquatic plant family Hydatellaceae, many of which occur in Australia, are more closely related to waterlillies than they are to grasses. While the leaves are grass-like and the flower parts also much reduced, new research into pollen, seeds and germination have indicated that the evolutionary history of this family may be quite different than previously believed. Read more here:
New-found relatives among the waterlillies
|
© Calyx Horticultural Services ABN 38 518 961 623
|