Root vegetables
100-110days to harvest
14-28days to germinate
Z2–11USDA zones
Moderatedifficulty
Heirloom

Sowing

Plant seed potatoes after soil temperature reaches 45°F. Cut pieces should cure 24-48 hours before planting. Hill regularly.

Cultivation

Sun
Full sun (6+ hours)
Water
1-2 inches per week, consistent moisture during tuber development
Soil
Deep, loose, well-drained soil with high organic matter
Soil pH
5.0-6.5
Spacing
12-15 inches
Height
12-24 inches
Season
Cool to warm season

Appearance & flavour

Colour
Buff/tan skin with deep yellow flesh
Size
3-4 inches long, medium-sized
Shape
Oval to oblong tubers
Flavour
Rich, buttery flavor with dense, creamy texture

In the kitchen

Baking, mashing, roasting, frying. Excellent for gourmet preparations and winter storage.

Pests, disease & resistance

Pests
Colorado potato beetle, aphids, potato tuberworm
Diseases
Late blight, early blight, potato scab
Resistance
Moderate disease resistance, typical of heirloom varieties

Planting calendar by USDA zone

ZoneStart indoorsTransplantDirect sowHarvest
1——June – JulySeptember
2——May – JulySeptember
3——May – JuneAugust – October
4——April – JuneAugust – October
5——April – MayJuly – November
6——April – MayJuly – November
7——March – MayJuly – November
8——March – AprilJune – December
9——February – MarchMay – December
10——January – MarchMay – December
11——January – FebruaryApril – December
12——January – FebruaryApril – December
13——January – FebruaryApril – December

Companion planting

8 beneficial pairings indexed for this variety, 3 to avoid.

MarigoldsRepel Colorado potato beetles and nematodes, natural pest deterrent
Bush BeansFix nitrogen in soil and don't compete for space with potato tubers
ChivesRepel aphids and may improve potato flavor and growth
NasturtiumsAct as trap crop for Colorado potato beetles and aphids
ParsleyAttracts beneficial insects and doesn't compete for root space
RadishesBreak up soil for potato growth and mature before potatoes need space
LettuceShallow roots don't interfere with tubers, harvest before potatoes expand
CilantroAttracts beneficial insects and repels harmful pests

Avoid

TomatoesBoth are nightshades sharing diseases like blight and attracting same pests
SunflowersAllelopathic effects inhibit potato growth and compete heavily for nutrients
CucumbersCompete for water and nutrients, may increase disease susceptibility

Nutrition (per 100 g)

Calories (per 100 g)
41
Protein (g)
0.93
Fat (g)
0.24
Carbohydrate (g)
9.58
Fibre (g)
2.8
Sugars (g)
4.74
Vitamin A (µg)
835
Vitamin C (mg)
5.9
Vitamin E (mg)
0.66
Vitamin K (µg)
13.2
Vitamin B6 (mg)
0.138
Folate (µg)
19
Calcium (mg)
33
Iron (mg)
0.3
Magnesium (mg)
12
Phosphorus (mg)
35
Potassium (mg)
320
Zinc (mg)
0.24
Selenium (µg)
0.1

Where to buy seed and equipment

Some links are affiliate links. If you buy through them we may earn a commission at no extra cost to you.

Growing it? There is a full cultivation guide at the root vegetables growing guide.

Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.

DarkGrow forum

Grown German Butterball Potato?

Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.

Similar varieties

Other root vegetables with a comparable time to harvest, so a season that suits German Butterball Potato suits these too.

Browse all 56 root vegetables