Atomic Grape
Brad's Atomic Grape
Single source · Reviewed Sep 9, 2026
Values marked like this (estimated) are model estimates, not confirmed from a source.
Open-pollinated grape from USA. Elongated grape striped in lavender, green and olive, all shifting as it ripens. Ready in about 75 days from transplant.
- Open-pollinated
- 75 (estimated) days to maturity (from transplant)
- Indeterminate
- Cocktail-size fruit
- Moderate (estimated)
At a glance
- Fruit type
- Grape 1–2 oz (30–50 g) · Oval (estimated)
- Leaf type
- Regular leaf
- Plant height
- 7–9 ft (210–270 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
- Skin
-
- Striped
- Interior
-
- Green
Plant size and habit
Tall · Indeterminate
7–9 ft (210–270 cm) (estimated) · Regular leaf
Atomic Grape 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 7–9 ft (210–270 cm).
Flavor
“Elongated grape striped in lavender, green and olive, all shifting as it ripens.”
Growing calendar
- Sow indoors
- Transplant out
- Harvest
Timing shown for temperate climates; sow indoors 6–8 weeks before your last frost date.
Disease resistance
No documented disease resistances — protect this variety with good airflow and crop rotation.
Uses & tags
- Fresh & salads
- Snacking
- Roasting
- Novelty color
- Gift worthy
- High flavor
- Award winner
Origin
Sold by its breeder as Brad's Atomic Grape, this variety is elongated and striped lavender and purple when immature, turning green and red/brown with anthocyanin-blue stripes when fully ripe; the interior is green with a red blush when extra ripe. Bred by Brad Gates of Wild Boar Farms, it is probably the most photographed tomato of the last decade.
Sources
Where to buy seeds
All photos
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Atomic Grape tomatoes ripening on the vine under cover -
A truss of Atomic Grape tomatoes -
Atomic Grape tomato plant in a garden bed with ripe fruit on the vine -
A ripe Atomic Grape tomato held in a gardener's hand -
Freshly picked Atomic Grape tomatoes -
Atomic Grape tomato sliced in the kitchen
Questions
How long does Atomic Grape take to mature?
Atomic Grape is ready in about 75 days from transplant.
Does Atomic Grape need staking?
Atomic Grape 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 7–9 ft (210–270 cm).
Can Atomic Grape be grown in a container?
Atomic Grape is better suited to open ground or a greenhouse bed than a container.
Is Atomic Grape resistant to disease?
No disease resistance is documented for Atomic Grape.
See also
Other grape varieties people put next to this one.
Grows like this one
Indeterminate, midseason, full sun. Same support, same calendar.
