Wonder what type of guttering system they use there?

Work smarter, not harder.

How about some summer cleaning?
Now is the time to make sure that your gutters are free of leaves, debris and blockages. With all of the intense summer storms that have been hitting the East Coast of Australia, if your gutters are not working properly there is a high risk that they will overflow and leak into your roof cavity and internal structures of your house. If you can not safely clean your gutters, engage the services of a professional to clean them for you. Calling in a professional gutter cleaner to maintain your gutters is far cheaper than calling in a tradesman to fix the thousands of dollars of water damage that can occur from overflowing gutters.

No need to clean the gutters on this little beauty. The vegetables in that greenhouse look like they are really thriving.
You might be surprised at how many little bushes and sprouts we find in blocked gutters when we are cleaning roofs in Brisbane. Once a bit of soil settles in the gutters it creates a great little ecosystem for seeds to sprout. Water gets blocked in the gutters which in turn causes the little shoot to grow even faster. Once the little bush starts growing it can cause major damage in the roof and guttering system. This is one reason why it is so important to clean your gutters regularly, especially in Brisbane. https://brisbanegutters.com.au/