The flowers instead have prickles that form from the skin of the plant, similar to how hair grows. Prickles have been around for at least 400 million years, dating back to when ferns and their ...
3 Tell them to sort the plants into those with prickles and thorns, and those without. They should carefully take the non-prickly plants out of their pots and plant them into their bowl.
These generally work best under warm conditions but before the plants get too mature. Whatever herbicide is used on the Onehunga weed, obviously it is best to kill the weed before the fruits begin ...