How do you make cactus in alexamy?

To make a cactus in Alexamy, you'll need to gather the required materials, typically including sand and a green block representing the cactus. Place the green block in a vertical orientation and add a few additional blocks on top to create the desired height. You can also customize the cactus by adding flowers or other decorative elements around it. Make sure to follow the specific crafting guidelines in the game for the best results.