- Open-pollinated
- Beefsteak
- 80 days to maturity (from transplant)
- Indeterminate
- Black
Carbon
Open-pollinated beefsteak from unknown. Black beefsteak slicer with large, flattened fruit. Ready in about 80 days from transplant.
Single source · Updated Sep 9, 2026 · Values marked like this (estimated) are estimates.
At a glance
- Fruit type
- Beefsteak 10–16 oz (280–450 g) · Flattened globe
- Leaf type
- Regular leaf
- Days to harvest
- 80 days from transplant · Mid-late
- Plant height
- 5–8 ft (150–240 cm) Tall
- Spacing
- 24 × 39 in (60 × 100 cm) (estimated)
- Sunlight
- Full sun
- Position
- Handles open positions
- Growing sites
- Greenhouse · Polytunnel · Open ground · Container
- Container growing
- Not suited to pots
- Difficulty
- Easy-moderate (estimated) 2/5
- Skin
-
- Black
- Interior
- Not recorded
Plant size and habit
Tall · Indeterminate
5–8 ft (150–240 cm) · Regular leaf
Carbon is an indeterminate plant that keeps growing and setting fruit until frost; it needs a stake, cage, or trellis for the whole season. Expect a plant of 5–8 ft (150–240 cm).
Flavor
“Black beefsteak slicer with large, flattened fruit.”
Growing calendar
80 days from transplant Mid-late
Timing shown for temperate climates; sow indoors 6–8 (estimated) weeks before your last frost date. Look up your last frost date by ZIP code →
Disease resistance
No documented disease resistances — protect this variety with good airflow and crop rotation.
Uses & tags
- Fresh & salads
- Slicing
Origin
A black-fruited beefsteak slicer with large, flattened fruit. Origin country is not recorded by Tatiana's TOMATOBase.
Sources
Where to buy seeds
Prices rechecked dailyAll photos
Questions
How do you grow a Carbon plant?
A Carbon plant grows 5–8 ft (150–240 cm) tall. Space plants 24 in (60 cm) apart in rows 39 in (100 cm) apart (estimated). Start seed indoors 6–8 weeks before your last frost (estimated); it germinates in 6–10 days (estimated). It needs full sun.
How long does Carbon take to mature?
Carbon is ready in about 80 days from transplant.
Does Carbon need staking?
Carbon is an indeterminate plant that keeps growing and setting fruit until frost; it needs a stake, cage, or trellis for the whole season. Expect a plant of 5–8 ft (150–240 cm).
Can Carbon be grown in a container?
Carbon is better suited to open ground or a greenhouse bed than a container.
Is Carbon resistant to disease?
No disease resistance is documented for Carbon.
