Growing guide
How to grow carrots in Ireland
Carrots are worth growing for small, tender roots you can lift just before a meal, as well as a maincrop for later use. The challenge is at the start: tiny seeds need an even, moist seedbed, and crowded seedlings create extra thinning work. Prepare the ground carefully rather than expecting roots to work around stones and clods.
On this page
At a glance
- Start with
- Seed; early or maincrop varieties to match your intended harvest
- Best position
- A sandy loam is ideal; remove stones and break down clods
When and where to start
Direct sowing. Protected early crops can be sown in February or March. The main sowing is mid-April to May; an early variety sown in June can give tender roots roughly twelve weeks later. Teagasc’s overall window extends into July, but workable soil and local conditions decide when to start.
Planting and spacing
Make drills 15 cm apart and sow 1–2 cm deep. Keep depth even along the row so seedlings emerge together. Sow thinly, then thin crowded seedlings to 5–7 cm apart.
Pelleted seed is easier to place individually, although more expensive. Water a dry drill before sowing, cover evenly and firm gently with the back of a rake. Use a fine rose for later watering so seed is not washed into clumps.
Routine care
Keep the surface moist during emergence. A hard dry crust can obstruct seedlings, so inspect the row rather than assuming rainfall has done the job.
Remove weeds while small and label successive batches. Winter-storage guidance suggests a mid-May to mid-June sowing; that is a specific later-use method, not a reason to delay every carrot crop.
What to watch for
Stones can cause misshapen roots. Carrot fly, aphids and slugs are listed pests; look at damaged roots as well as leaves before deciding what is wrong.
Frost can damage roots left in the ground. Cover exposed shoulders with soil; Teagasc describes 25–30 cm of loose straw in colder districts, with leaves as another covering material. Check for deterioration beneath protection.
Harvest and storage
Lift roots at a useful kitchen size, loosening firm soil first so they do not snap. Take the older batch first rather than leaving all sowings until autumn.
Sound winter roots can remain in the ground under suitable frost protection, but inspect them and consider drainage and local cold. Use lifted roots promptly. Lift modest quantities so they reach the kitchen in good condition.
Common questions
Must I thin every row?
Only where seedlings are crowded. Thin sowing and pelleted seed can reduce the work.
Can carrots stay outside all winter?
They can under appropriate protection, but they are not immune to frost or decay. Inspect the crop instead of assuming it will last until spring.
Are early and maincrop varieties interchangeable?
Choose for the harvest you want. An early variety is useful for a short summer crop; a maincrop follows a different intended season.