vegetable
solanaceae family

Maris Piper Potato

Solanum tuberosum

Maris Piper is the UK's best-selling potato variety and arguably the most versatile — brilliant for roasting, chipping, mashing, and baking. It's a second early to maincrop type, planted from mid-March to April and harvested from July onwards. Chit (sprout) seed potatoes in egg boxes on a cool windowsill from February to get a head start. Plant in trenches 12cm deep and earth up as shoots emerge, mounding soil around the stems to prevent tubers turning green. Potatoes are hungry feeders — incorporate plenty of well-rotted compost or manure before planting. They're also excellent for breaking in new ground, as the earthing-up process and dense foliage suppress weeds. Harvest when the foliage starts to yellow and die back. Leave tubers to dry on the soil surface for a few hours before storing in hessian sacks in a cool, dark place.

Plan where to grow Maris Piper Potato using our vegetable garden planner.

SunlightFull sun
WateringModerate
Height60cm
Spacing25cm
Germination14–21 days (from chitted tubers)
Sowing MethodDirect sow
Frost HardinessHalf-hardy
Sowing Depth12–15cm

When to Sow Maris Piper Potato

Sow maris piper potato in March, April.

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Sowing months

Time to Harvest Maris Piper Potato

Expect to harvest approximately 4 months after sowing.

Companion Plants

Expected Yield

Expect 1.5–2.5kg per plant; a 3m row yields roughly 10–15kg.

Common Problems with Maris Piper Potato

Potato blight

Brown patches appear on leaves and spread rapidly in warm, humid conditions (typically July–August in the UK). Earth up well to protect tubers from spores washing into the soil, and cut back all foliage at the first sign of blight to prevent it reaching the tubers below. Wait two weeks before harvesting to let the skins set. Choose blight-resistant varieties like 'Sarpo Mira' or 'Setanta' in areas where blight is a regular problem.

Scab

Rough, corky patches on the skin caused by the bacterium Streptomyces scabies, which thrives in dry, alkaline soil. Avoid liming the potato bed, incorporate plenty of organic matter to retain moisture, and keep soil consistently moist during the critical tuber-forming period (June–July). The flesh underneath is perfectly edible — simply peel affected areas.

Green potatoes

Tubers exposed to light develop the toxic alkaloid solanine, turning the skin green. Earth up regularly as shoots grow, mounding soil at least 15cm around the stems to keep tubers covered. Store harvested potatoes in complete darkness — even brief light exposure causes greening. Discard any potatoes that are significantly green, as solanine is not destroyed by cooking.

Plan your maris piper potato in the allotment planner

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