- Heirloom
- Beefsteak
- 85 (estimated) days to maturity (from transplant)
- Indeterminate
- Green
Green Giant
Heirloom beefsteak from USA. Large green-when-ripe beefsteak with unusually dense flesh. Ready in about 85 days from transplant.
Single source · Updated Sep 9, 2026 · Values marked like this (estimated) are estimates.
At a glance
- Fruit type
- Beefsteak 12–20 oz (340–570 g) · Flattened globe (estimated)
- Leaf type
- Potato leaf
- Days to harvest
- 85 days (estimated) from transplant · Mid-late
- Plant height
- 6–8 ft (180–240 cm) (estimated) Tall
- Spacing
- 24 × 35 in (60 × 90 cm) (estimated)
- Sunlight
- Full sun
- Position
- Handles open positions
- Growing sites
- Greenhouse · Polytunnel · Open ground
- Container growing
- Not suited to pots
- Difficulty
- Difficult (estimated) 5/5
- Skin
-
- Green
- Interior
-
- Green
Plant size and habit
Tall · Indeterminate
6–8 ft (180–240 cm) (estimated) · Potato leaf
Green Giant 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 6–8 ft (180–240 cm).
Flavor
“Large green-when-ripe beefsteak with unusually dense flesh.”
Growing calendar
85 (estimated) 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
- Novelty color
- High flavor
- Rare collector
Origin
Green Giant is a large green-when-ripe beefsteak with dense flesh and the first known potato-leaf green variety. Reinhard Kraft of Neukirchen, Germany selected it as an unexpected potato-leaf seedling in a regular-leaf green variety and shared seed with Craig LeHoullier in 2004; early seed gave a mix of potato-leaf and regular-leaf plants, so a regular-leaf plant under this name is an off-type. It is grown mainly by collectors of the green group.
Sources
Where to buy seeds
Prices rechecked dailyAll photos
Questions
How do you grow a Green Giant plant?
A Green Giant plant grows 6–8 ft (180–240 cm) tall (estimated). Space plants 24 in (60 cm) apart in rows 35 in (90 cm) apart (estimated). Start seed indoors 6–8 weeks before your last frost (estimated); it germinates in 7–14 days (estimated). It needs full sun.
How long does Green Giant take to mature?
Green Giant is ready in about 85 days from transplant.
Does Green Giant need staking?
Green Giant 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 6–8 ft (180–240 cm).
Can Green Giant be grown in a container?
Green Giant is better suited to open ground or a greenhouse bed than a container.
Is Green Giant resistant to disease?
No disease resistance is documented for Green Giant.
