
Green Tree Snake
Dendrelaphis punctulatus
Also known as: Common Tree Snake
Slender, fast and harmless. Usually spotted disappearing into a hedge before you get a second look.
- Length
- 1–2 m
- Active
- Diurnal
- Habitat
- Gardens, shrubs, wetlands, riverbanks
- Diet
- Frogs, tadpoles, geckos, skinks
- Status
- Protected wildlife — licensed handlers only
Do not wash the bite, do not apply a tourniquet and do not try to catch the snake. Keep the person still, apply a pressure immobilisation bandage if you have one, and get emergency help immediately.
Native reptiles are protected wildlife. Taking, handling, moving or harming one without the appropriate permit is an offence under Queensland's Nature Conservation Act 1992 and carries significant penalties — as well as being the fastest way to get hurt.
The Green Tree Snake, also known as the Common Tree Snake, is one of the most commonly encountered non-venomous snakes on the Sunshine Coast. These slender, fast-moving snakes are often seen in gardens, trees, shrubs, and around homes, particularly in areas where frogs and small reptiles are abundant.
Although harmless to humans, Green Tree Snakes can bite if threatened. However, they are generally shy animals and will usually attempt to escape quickly when approached.
About the Green Tree Snake
Green Tree Snakes are a long, slender species that typically grow between 1 and 2 metres in length. Their colouring can vary significantly depending on the individual and location.
Most are bright green, olive-green, or blue-green along the body, although some individuals may appear darker or even black. A distinctive feature of this species is the blue colouring visible between the scales, which often appears when the snake inflates its body as a defensive display.
The underside of the snake is usually yellow, cream, or pale blue, which contrasts with the darker colour of the back.
They have large eyes and a narrow head, giving them excellent vision for hunting during the day.
Habitat
Where can you find a Green Tree Snake?
Green Tree Snakes occur across much of eastern and northern Australia, including large parts of Queensland.
They occupy a wide variety of habitats, including:
- open forests
- rainforests
- farmland and agricultural areas
- wetlands and riverbanks
- suburban gardens and parks
Because their diet includes frogs and small reptiles, they are often found near water sources such as ponds, creeks, and fountains.
Their slender bodies allow them to move easily through trees, shrubs, long grass, and fences, which is why they are often spotted in backyard vegetation.
Venom
Is the Green Tree Snake dangerous?
The Green Tree Snake is not venomous and is generally harmless to humans.
If threatened, these snakes may attempt to defend themselves by inflating their body and neck, exposing the blue colouring between their scales to appear larger and more intimidating.
They may also release a strong-smelling musk from their anal glands as a deterrent. In rare situations where the snake feels cornered or is handled incorrectly, it may bite.
While the bite is not dangerous, it can still cause minor puncture wounds.
Diet
What does the Green Tree Snake eat?
Green Tree Snakes are carnivorous and feed on a variety of small animals, including:
- frogs
- tadpoles
- geckos
- skinks
- small reptiles
- reptile eggs
They are active daytime hunters and rely on their excellent vision and speed to catch prey.
Because frogs make up a large portion of their diet, they are often seen around wet environments and garden ponds.
Behaviour
What should you know about this species?
Green Tree Snakes are diurnal, meaning they are most active during the day.
They are excellent climbers and spend much of their time moving through trees, bushes, and elevated vegetation, which is where they get their name.
When resting at night, they may shelter in:
- hollow logs
- tree branches
- dense foliage
- rock crevices
If threatened, they may flatten or inflate their body to appear larger before quickly escaping.
What to do if you see a Green Tree Snake
If you encounter a Green Tree Snake in your garden or home, the best approach is to leave it alone and allow it to move away on its own.
These snakes are generally harmless and are beneficial to have around as they help control frogs and small reptiles.
But if pets are around sometimes Relocation might be the best option.
If the snake has entered a building or cannot leave the area safely, contact a licensed snake catcher to assist with identification and relocation.
Remember that snakes should only be handled by people with the appropriate training and permits.
Taken on call-outs across South East Queensland. Colour and pattern vary a lot between individuals — compare several before settling on an ID.
Asked on
most call-outs.
How do you identify a green tree snake?
How big do green tree snakes get?
Are green tree snakes venomous?
Are green tree snakes dangerous?
Do green tree snakes live in trees?
Are green tree snakes dangerous to pets?
Call or text — a licensed handler will talk you through it. If someone has been bitten, call 000 first.