Yes, it is legal to buy cannabis seeds in Ireland. Cannabis seeds are not classified as a controlled substance under the Misuse of Drugs Act 1977, so they can be legally purchased, sold, and possessed.
However, it is illegal to germinate cannabis seeds or to cultivate cannabis plants in Ireland, without a license from the Minister for Health. The only legal exception is for the cultivation of cannabis for medical purposes, but this is currently only allowed in a very limited number of cases.
If you are caught in possession of germinated cannabis seeds or cannabis plants, you could face a fine or imprisonment. The severity of the penalty will depend on the quantity of cannabis involved and other factors, such as whether you have any previous convictions.
Even though it is legal to buy cannabis seeds in Ireland, it is important to be aware of the law and the risks involved in germinating them or cultivating cannabis plants.