Grown German Johnson?

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German Johnson — Tomatoes | DarkGrow Seed Bank

Name: German Johnson
Brand: DarkGrow Seed Bank

75days to harvest

7-14days to germinate

Z10–10USDA zones

Moderate to Challengingdifficulty

Heirloom

Sowing

Start indoors 6-8 weeks before last frost date. Transplant after soil warms to 65°F and all frost danger passes.

Cultivation

Sun: Full sun (6+ hours)
Water: High — consistent moisture needed
Soil: Rich, fertile loam with excellent drainage and high organic matter
Soil pH: 6.2-6.8
Spacing: 36-48 inches
Height: 1-10 feet
Season: Warm season annual

Appearance & flavour

Colour: Deep red with pink undertones
Size: 8-16 oz.
Shape: Indeterminate
Flavour: Rich, complex flavor with perfect sweet-tart balance, very juicy

In the kitchen

Premium slicing tomato for sandwiches and fresh eating. Excellent for canning and sauces when flavor is paramount.

Pests, disease & resistance

Pests: Tomato hornworm, cutworms, aphids, tobacco budworm
Diseases: Late blight, early blight, septoria leaf spot, bacterial wilt
Resistance: Limited disease resistance typical of heirlooms. Prone to cracking in wet weather.

Planting calendar by USDA zone

Zone	Start indoors	Transplant	Direct sow	Harvest
2	April – May	June – July	—	September
3	April	June – July	—	September – October
4	March – April	June	—	September – October
5	March	May – June	—	August – October
6	March	May – June	—	August – October
7	February – March	April – May	—	July – September
8	February	April – May	—	July – September
9	January	March – April	—	June – August
10	January	February – March	—	May – July
11	January	January – February	—	April – June
12	January	January – February	—	April – June
13	January	January – February	—	April – June

Companion planting

8 beneficial pairings indexed for this variety, 4 to avoid.

BasilRepels aphids, whiteflies, and hornworms while potentially improving tomato flavor

MarigoldsDeters nematodes, aphids, and whiteflies with natural compounds

CarrotsLoosens soil for tomato roots and doesn't compete for nutrients

ParsleyAttracts beneficial insects like parasitic wasps that control tomato pests

ChivesRepels aphids and may help prevent fungal diseases

NasturtiumsActs as trap crop for aphids and cucumber beetles

LettuceProvides ground cover and utilizes space efficiently without competing

BorageAttracts pollinators and beneficial insects while deterring hornworms

Avoid

Black Walnut TreesProduces juglone toxin that causes tomato wilt and stunted growth

FennelInhibits tomato growth through allelopathic compounds

BrassicasCompetes heavily for nutrients and may stunt tomato growth

CornBoth attract corn earworm/tomato fruitworm, increasing pest pressure

Nutrition (per 100 g)

Calories (per 100 g): 27
Protein (g): 0.83
Fat (g): 0.63
Carbohydrate (g): 5.51
Fibre (g): 2.1
Vitamin C (mg): 27.2
Vitamin E (mg): 0.98
Vitamin K (µg): 4.2
Vitamin B6 (mg): 0.06
Folate (µg): 10
Calcium (mg): 11
Iron (mg): 0.33
Magnesium (mg): 11.9
Phosphorus (mg): 28
Potassium (mg): 260
Zinc (mg): 0.2

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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 tomatoes growing guide.

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

Sowing

Cultivation

Appearance & flavour

In the kitchen

Pests, disease & resistance

Planting calendar by USDA zone

Companion planting

Avoid

Nutrition (per 100 g)

Where to buy seed and equipment

Grown German Johnson?

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