I would consider using Facebook advertising it is alot cheaper and more effective than using leaflets. The big benefit is you can easily target certain groups,, i.e just show this advert to people females aged 25 - 40 years of old who live in Dublin who are interested in gardening.. etc. etc. etc.
There are plenty of tutorials on Youtube,, you would just need to set up an account (all you need is a credit card)
The type of Fb advert in this case would be 'reach' (meaning show this ad to as many people as possible) it might sound complicated,, it really isn't you could learn it in an hour or so.