Tomatoes
80days to harvest
7-14days to germinate
Z10–11USDA zones
Moderatedifficulty
Heirloom

Sowing

Start indoors 6-8 weeks before last frost. Transplant after soil warms to 65°F.

Cultivation

Sun
Full sun (6+ hours)
Water
High — consistent moisture needed
Soil
Rich, well-drained soil with good organic content
Soil pH
6.2-6.8
Spacing
24-36 inches
Height
1-10 feet
Season
Warm season annual

Appearance & flavour

Colour
Dark purple-black with green shoulders
Size
8-16 oz.
Shape
Indeterminate
Flavour
Rich, complex, and smoky with sweet undertones and mild saltiness

In the kitchen

Gourmet fresh slicing, specialty salads, farmers market sales. Beautiful contrast in dishes. Low acid - not ideal for canning.

Pests, disease & resistance

Pests
Tomato hornworm, aphids, whiteflies, spider mites
Diseases
Late blight, early blight, blossom end rot, fruit cracking
Resistance
Typical heirloom susceptibility, prone to cracking in wet conditions

Planting calendar by USDA zone

ZoneStart indoorsTransplantDirect sowHarvest
2April – MayJune – July—September
3AprilJune – July—September – October
4March – AprilJune—September – October
5MarchMay – June—August – October
6MarchMay – June—August – October
7February – MarchApril – May—July – September
8FebruaryApril – May—July – September
9JanuaryMarch – April—June – August
10JanuaryFebruary – March—May – July
11JanuaryJanuary – February—April – June
12JanuaryJanuary – February—April – June
13JanuaryJanuary – February—April – June

Companion planting

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

BasilRepels aphids and whiteflies, may improve tomato flavor
MarigoldDeters nematodes and aphids with natural compounds
OreganoRepels spider mites and provides ground cover
ParsleyAttracts beneficial insects like hoverflies and parasitic wasps
CarrotsHelp break up soil and don't compete for nutrients
NasturtiumActs as trap crop for aphids and cucumber beetles
ChivesRepels aphids and may improve disease resistance
LettuceProvides living mulch and utilizes different soil layers

Avoid

Black WalnutReleases juglone toxin that causes tomato wilt and stunting
FennelInhibits growth through allelopathic compounds
BrassicasCompete for similar nutrients and may stunt tomato growth
CornBoth attract corn earworm which also damages tomatoes

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

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.

DarkGrow forum

Grown Black Krim?

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

Similar varieties

Other tomatoes with a comparable time to harvest, so a season that suits Black Krim suits these too.

Browse all 91 tomatoes