The Cactus University
Welcome to our learning centre, The Cactus University, where you can learn everything to do with cactus growing and care, from the basics of lighting and watering to advanced soil recipes. Have a browse or use the search function below to find what you’re looking for.
Are Prickly Pear Cacti illegal in Australia?
Are Prickly Pear cacti illegal in Australia, and if so, why? We answer that here and delve into a little bit of the history around this prickly problem.
The Best Rooting Hormone for Cacti: Indole-3-Butryic Acid (IBA) Powder Explained
Get our advice on the best rooting hormone for cacti cuttings. Learn about the three main types of rooting hormones: IAA, IBA, NAA, and why IBA is the recommended choice. Discover the benefits of using IBA rooting powder for cacti and why powder is better than gel. Get our product recommendation for high-quality IBA rooting powder, Rootex-P.
Why you should learn the scientific names for plants
You don’t have to be a botanist to understand the basics of plant taxonomy, read on for our quick crash course.
Does a cactus need water?
Yes, absolutely. Whilst most cacti can indeed survive extended periods without water, this does not mean that cacti don’t require any moisture at all. Make no mistake that if you completely starve your cactus of water that it will die a slow and agonizing death.
Cactus Top Cuts and Mid Cuts Explained
We often get asked what the difference between a top cut and a mid (middle) cutting is, so we made a video to explain it.
What is a “Cowboy Cactus”?
Have you heard of the term ‘Cowboy Cactus’? We often get asked if we sell them, but they are often surprised when we tell them that these plants aren't cacti at all. Fnd out what people really mean when they say "Cowboy Cactus" (as well as our own opinion of what a cowboy cactus really is).
What is Zeolite? And why is it great for Cacti?
If you have been following us for a while you’ll have heard us talk about Zeolite. Let’s explore what zeolites are, why you should add them to your cactus soil mix and some of the benefits they provide our plants.
Debunking Myths About Cacti: 7 Common Misconceptions About These Spiky Plants!
There is something about cacti that has a way of capturing fascination and with fascination also comes misinformation. Read on to debunk some common myths about cacti and crush your next cacti trivia night.
What is a PC San Pedro?
“PC San Pedro” is a phrase that gets bandied around often and has become synonymous with "bad genetics" in the cactus community, but what is it really? What exactly is a "PC San Pedro", and how can you spot one, and should you avoid them?
Advanced Cactus Soil
Read our Cactus Soil 101 guide and want to dive a little deeper? Our Advanced Cactus Soil guide goes into more detail and shares some expert tips and tricks for your soil mix.
How to Grow Cactus From Seeds
Learn how to germinate and grow cactus from seed the easy way with our detailed but easy to follow guide.
How to identify San Pedro cactus
Just getting into cacti and can’t for the life of you work out how to identify a San Pedro cactus if you walked past one at a nursery? Here are our identification tips and tricks.
Are there any cacti in Australia?
Australia doesn’t have any native cacti, but we do have a few that liked our climate so much they decided to stay.
Trichocereus or Echinopsis?
Is it Trichocereus, or is it Echinopsis? Learn why these cacti are sometimes referred to by different names, and what the “correct” names are.
How to Root a Cactus Cutting
Learn how to correctly pot a cactus cutting to encourage healthy root generation and to minimise the possibility of rot and other issues.
A Guide to Watering Cactus
Too much or too little water is the leading cause of cactus death. Contrary to popular belief, cactus do need a decent amount of water particularly large species like ours. The difference is that they are just adapted to living for longer periods without it. Learn how to water your cacti correctly here.
Cactus Soil 101
Cactus soil is cheap and easy to make at home, and much better than that stuff they sell pre-made. Learn how!
The Ultimate Guide to Potting Columnar Cactus
Everything you need to know about potting up cactus. What type of pot to use, how big it should be and how to do it.
How Much Sun Does a Cactus Need?
Cactus are sun loving plants, but if you just throw them out in the harsh Australian sun in summer they will have a few complaints. Learn all about cactus sun requirements here.