Taiwan lily (Lilium formosanum)

Also known as: tiger lily, Formosan lily

Taiwan lily is a perennial bulb that can multiply rapidly.


How does this weed affect you?

Plants can grow from seed to flower in as little as six months. 

What does it look like?

Taiwan lily is a perennial herb up to 2 m tall. It has thin leaves that are up to 15 cm long and 1 cm wide. The leaves are alternate along the stem and the leaves higher up the stem are smaller than those below. The fragrant flowers are large (up to 15 cm long), trumpet-shaped and white, sometimes purplish on the outside. The tips of the petals curve backwards. Taiwan lily produces cylindrical capsules up to 8 cm long and 1 cm wide.

Where is it found?

Taiwan lily grows in coastal regions of NSW and the Central Tablelands.  It is often found along roadsides.

It is a native plant in Taiwan.

How does it spread?

It can spread by bulbs and / or seed.


PlantNET (The NSW Plant Information Network System). Royal Botanic Gardens and Domain Trust, Sydney. Retrieved 15 February 2021 from https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Lilium~formosanum

Richardson F.J.,Richardson R.G. and Shepherd R.C.H (2006).Weeds of the south-east an identification guide for Australia. (R.G. and F.J. Richardson, Melbourne).

More information

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Herbicide options

Users of agricultural or veterinary chemical products must always read the label and any permit, before using the product, and strictly comply with the directions on the label and the conditions of any permit. Users are not absolved from compliance with the directions on the label or the conditions of the permit by reason of any statement made or not made in this information. To view permits or product labels go to the Australian Pesticides and Veterinary Medicines Authority website www.apvma.gov.au

See Using herbicides for more information.

PERMIT 9907 Expires 31/03/2025
Glyphosate 360 g/L with Metsulfuron-methyl 600 g/kg (Various products)
Rate: 2 L glyphosate plus 15 g metsulfuron-methyl per 100 L of water
Comments: Spot spray application between flowering and fruiting.
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
Metsulfuron-methyl 600 g/kg (Various products)
Rate: 10-20 g metsulfuron-methyl in 100 L of water plus surfactant
Comments: Spot spray application between flowering and fruiting.
Withholding period: Nil (recommended not to graze for 7 days before treatment and for 7 days after treatment to allow adequate chemical uptake in target weeds).
Herbicide group: 2 (previously group B), Inhibition of acetolactate and/or acetohydroxyacid synthase (ALS, AHAS inhibitors)
Resistance risk: High

Picloram 44.7 g/L + Aminopyralid 4.47 g/L (Vigilant II ®)
Rate: Undiluted
Comments: Cut stump application. Apply a 3–5 mm layer of gel across the cut surface on the rhizome .
Withholding period: Nil.
Herbicide group: 4 (previously group I), Disruptors of plant cell growth (Auxin mimics)
Resistance risk: Moderate

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Biosecurity duty

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.

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For technical advice and assistance with identification please contact your local council weeds officer.

Reviewed 2014