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How to grow Irish potato
Solanum tuberosum · Solanaceae
Photo: PROPOLI87 · CC BY-SA 4.0
The Irish potato (mbatatisi, ikirayi, viazi mviringo) is a cool-weather crop grown for the tubers that swell underground — it is not a grain, and it is not the same plant as sweet potato. You do not plant it from true seed: you plant small whole potatoes, called seed tubers, and each one grows into a plant that makes a nest of new potatoes below the soil. Potato loves the cool — cool highlands and cool seasons — because in real heat it grows leafy tops but stops making tubers. It pays back generously, but it is a demanding crop: it lives or dies on three things — clean certified seed, staying ahead of late blight, and plenty of potassium.
- Days to maturity
- 70–130 days
- Row spacing
- 75 cm
- Plant spacing in the row
- 28 cm
- Sowing depth
- 10 cm
These are general figures for the crop, compiled from published agronomic references including FAO and CABI. The right choice for your field depends on your soil, rainfall and the yield you are aiming for.
Will irish potato actually do well on your land? Check your field against every crop in the catalogue — free, no signup. Run the free crop check →
Other names for Irish potato
aartappel · dinich · Irish potato · potato · pomme de terre · igwili · mbatata · batata · ikirayi · mbatatisi · tapole · ditapole · viazi mviringo · kiazi · izambane
Working in buckets, bags or paces? The farming glossary turns the measures growers actually use into kilograms and hectares — what a 20 litre bucket of each crop really weighs, and how to size a field by walking it — alongside the Shona, Swahili, Ndebele and Yoruba words used in the field. Open the glossary →
Growing irish potato, stage by stage
Your potato season, step by step — from choosing clean seed and ridging the land, through planting, earthing-up and keeping blight at bay, to lifting and storing tubers that keep for months.
- Get your land, seed and inputs ready
- Plant and get an even stand
- Grow the tops and earth up
- Bulk the tubers — the make-or-break window
- Ripen and set the skins
- Lift and sort
- Cure, then store cool and dark
21 step-by-step tasks in the app
Every task for irish potato — what to do, when to do it and why it matters — with the amounts worked out for your own field, reminders as each one falls due, and warnings before extreme weather.
Pests and diseases that attack irish potato
1 more threat tracked in the app
Divisi tells you which of these is a risk on your irish potato right now, when to walk the field looking for it, and what to do the moment you find it.
Frequently asked questions
How long does irish potato take to grow?
Irish potato takes about 70–130 days from sowing to maturity, though the exact length varies with variety, temperature and how the season runs.
What spacing should I use for irish potato?
Space irish potato rows about 75 cm apart, with roughly 28 cm between plants within the row.
How deep should irish potato be planted?
Sow irish potato at about 10 cm deep. Shallower risks drying out; deeper wastes seed energy before the shoot reaches light.
What pests and diseases attack irish potato?
The ones covered in this guide are Early blight, Late blight, Potato tuber moth. Each has its own page explaining how to identify, scout for and control it.
Grow irish potato with a plan, not a guess
Divisi turns this guide into a dated plan for your own field — what to do each week, reminders as tasks fall due, and warnings before extreme weather. Free for farmers, works offline.
Or check your field first