Coastal morning glory is a vine weed with lobed leaves and purple funnel-shaped flowers. It smothers and outcompetes native plants.
Coastal morning glory grows very quickly to form a dense mat along the ground or climbs into the canopy. It:
Invasion and establishment of exotic vines and scramblers has been identified as a key threatening process for many vulnerable and endangered species in NSW. Coastal morning glory is one of the main species listed as a threat.
Coastal morning glory is a perennial vine with twining stems. It can grow up to 5 m into the canopy.
Coastal morning glory looks similar to other weed species, including:
Coastal morning glory grows along the NSW coastline from the Queensland border to Eurobodalla in the south. Isolated plants have also been found in the North West and Western regions.
It is native to tropical regions of Africa and Asia. It was introduced to Australia as a garden ornamental.
Coastal morning glory grows in tropical, sub-tropical and warm temperate climates. It tolerates a wide variety of soil types including saline conditions. It is common in:
Most spread has been through intentional planting.
Plants can start producing seeds when they one year old. Seeds are spread by wind, moving water and birds.
Morning glory stems can grow new roots from the nodes. Broken stems can spread in moving water and by people dumping garden waste.
Harden, G., McDonald, B. & Williams, J.() Rainforest Climbing Plants: A Field Guide to Their Identification. Harden Publishing.
Identic Pty Ltd. and Lucid central (2016). Environmental Weeds of Australia Fact sheet: Ipomoea cairica. Retrieved 31_10_2023 from https://keyserver.lucidcentral.org/weeds/data/media/Html/ipomoea_cairica.htm
McKenzie, R. (2012). Australia's poisonous plants, fungi and cyanobacteria: a guide to species of medical and veterinary importance. CSIRO.
Muyt, A. (2001). Bush invaders of South-East Australia: a guide to the identification and control of environmental weeds found in South-East Australia. RG and FJ Richardson.
PlantNET (The NSW Plant Information Network System). Royal Botanic Gardens and Domain Trust, Sydney. Retrieved 31_10_2023 from https://plantnet.rbgsyd.nsw.gov.au/cgi-in/NSWfl.pl?page=nswfl&lvl=sp&name=Ipomoea~cairica
Richardson, F. J., Richardson, R. G., & Shepherd, R. C. H. (2011). Weeds of the south-east: an identification guide for Australia (No. Ed. 3). CSIRO.
Successful weed control relies on follow up after the initial efforts. This means looking for and killing regrowth or new seedlings. Using a combination of control methods is usually more successful.
Small plants and seedlings can be hand pulled. Some larger plants may be pulled out in soft sandy soils.
Climbing stems can be cut and left above the ground to dry out and die. Make sure no cut stems have contact with the soil. Dig out the crown and roots carefully as they can regrow from parts left in the soil.
Spray actively growing plants and ensure that all of the foliage is covered with the herbicide mix. If vines are growing over desirable plants:
Regrowth can be spot sprayed with herbicides.
Cut stems close to the ground, preferably within 10 cm from the soil. Apply herbicide gel to the cut surface connected to the soil within15 seconds of cutting. Climbing stems can be left in place to wither and die. If there are any stems touching the ground, collect them and either take them off-site for disposal, or leave them on site to dry out without contacting the soil.
Cut stems to within 1 m of where the vine is firmly rooted in the soil. Use a sharp knife to scrape a very thin layer of bark from a 15–30 cm section of the stem. Apply the herbicide to the exposed soft underlying green tissue within 15 seconds of making the scrape. If there are any stems touching the ground, collect them and either take them off-site for disposal, or leave them to dry out on site, without contacting the soil.
Contact your local council for advice on how to dispose of this plant.
See Using herbicides for more information.
PERMIT 9907 Expires 31/03/2025
Glyphosate 360 g/L
(Various products)
Rate: 200 mL per 10 L of water
Comments: Spot-spray for seedling control.
Withholding period: Nil.
Herbicide group: 9 (previously group M), Inhibition of 5-enolpyruvyl shikimate-3 phosphate synthase (EPSP inhibition)
Resistance risk: Moderate
PERMIT 9907 Expires 31/03/2025
Glyphosate 360 g/L
(Various products)
Rate: 1 part glyphosate per 1.5 parts water
Comments: Stem scraping application.
Withholding period: Nil.
Herbicide group: 9 (previously group M), Inhibition of 5-enolpyruvyl shikimate-3 phosphate synthase (EPSP inhibition)
Resistance risk: Moderate
PERMIT 9907 Expires 31/03/2025
Glyphosate 360 g/L
with Metsulfuron-methyl 600 g/kg (Various products)
Rate: 200 mL glyphosate plus 1.5g of metsulfuron-methyl in 10 L water
Comments: Spot spray application
Withholding period: Nil.
Herbicide group: 9 (previously group M), Inhibition of 5-enolpyruvyl shikimate-3 phosphate synthase (EPSP inhibition)
Resistance risk: Moderate
Dichlorprop 600 g/L
(Lantana 600®)
Rate: 1 L in 200 L of water
Comments: Completely wet all leaves and stem of target plants
Withholding period: Nil.
Herbicide group: 4 (previously group I), Disruptors of plant cell growth (Auxin mimics)
Resistance risk: Moderate
Picloram 44.7 g/L + Aminopyralid 4.47 g/L
(Vigilant II ®)
Rate: Undiluted
Comments: Cut stem application. Apply a 3–5 mm layer of gel for stems less than 20 mm. Apply 5 mm layer on stems above 20 mm .
Withholding period: Nil.
Herbicide group: 4 (previously group I), Disruptors of plant cell growth (Auxin mimics)
Resistance risk: Moderate
The content provided here is for information purposes only and is taken from the Biosecurity Act 2015 and its subordinate legislation, and the Regional Strategic Weed Management Plans (published by each Local Land Services region in NSW). It describes the state and regional priorities for weeds in New South Wales, Australia.
Area | Duty |
---|---|
All of NSW | General Biosecurity Duty All pest plants are regulated with a general biosecurity duty to prevent, eliminate or minimise any biosecurity risk they may pose. Any person who deals with any plant, who knows (or ought to know) of any biosecurity risk, has a duty to ensure the risk is prevented, eliminated or minimised, so far as is reasonably practicable. |
Reviewed 2024