Resources

Topsoil, compost, mulch

https://www.envirogardenandhome.com

General supplies (seeds, compost, tools)
https://www.theorganiccentre.ie
https://www.fruithillfarm.com
https://www.quickcrop.ie

Garden Centres
http://www.longfordgardencentre.com/
https://www.fernhill.ie/

Seeds, plants, fruit trees
http://www.irishseedsavers.ie
https://www.seedaholic.com
https://greenvegetableseeds.com
https://www.brownenvelopeseeds.com
https://futureforests.ie
https://www.facebook.com/CaherhurleyNursery/

Greenhouse 

http://www.ksbgarden.com

Websites and advice
Rewilding: http://wearetheark.org
http://greensideup.ie/
http://pollinators.ie
https://livinglightlyinireland.wordpress.com/category/gardening/
https://bealtainecottage.com/

Books
Vegetables for the Irish Garden, Klaus Laitenberger
The Organic Garden - Green and Easy, Allan Shepherd
Grow Your Own Veg Journal, Carol Klein 
Grow Something to Eat Every Day, Jo Whittingham
RHS What Plant Where Encyclopedia