What to grow in Dublin

A local planting guide for Ireland — RHS H3, average frost dates, and the vegetables, herbs and flowers that thrive here.

Dublin climate at a glance

Decoded from long-run climate normals for Dublin's location. Use it as a starting point — your own garden's aspect, walls and soil shift these by a week or two.

RHS hardiness
H3
Average winter low
3°C (37°F)
Average summer high
19°C (65°F)
Last spring frost
April 10 (avg)
First fall frost
November 24 (avg)
Frost-free growing season
~228 days
Annual rainfall
975 mm/yr (38 in)
Hot days (≥30°C) per year
~0 days

Best plants for Dublin

214 plants in the library suit RHS H3. Tap any one for its sowing calendar, spacing and companions.

Easy starter picks for Dublin

New to growing? These are forgiving, fast, and can go straight into the ground — a good first season in RHS H3.

Plan your Dublin garden →