Sweet Hearts
Single source · Reviewed Sep 13, 2026
Values marked like this (estimated) are model estimates, not confirmed from a source.
Hybrid F1 grape from Japan, 2005. Grape hybrid bred for high sugar and heavy, uniform set on long trusses. Ready in about 60 days from transplant.
- Hybrid F1
- 60 (estimated) days to maturity (from transplant)
- Indeterminate
- Cherry-size fruit
- Easy-moderate (estimated)
At a glance
- Fruit type
- Grape ~1 oz (15–25 g) · Oval (estimated)
- Leaf type
- Regular leaf
- 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
- Skin
-
- Red
- Interior
-
- Red
Plant size and habit
Tall · Indeterminate
6–8 ft (180–240 cm) (estimated) · Regular leaf
Sweet Hearts 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
“Grape hybrid bred for high sugar and heavy, uniform set on long trusses.”
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
- Kid friendly
- High yield
- Award winner
Origin
Sweet Hearts is an F1 grape hybrid bred by Sakata Seed Corporation and dates to 2005, with heavy, uniform fruit set on long trusses.
Sources
Where to buy seeds
| Shop | Offer | Price | Packet | Stock | |
|---|---|---|---|---|---|
| Tomato Growers Supply Company | Seeds | $9.95Checked Sep 16, 2026 | Pack (10 seeds) | Check availability | Buy |
- BuyTomato Growers Supply CompanySeeds
Pack (10 seeds)
Check availability
$9.95Checked Sep 16, 2026
Links may earn us a commission at no cost to you. Prices checked Sep 16, 2026; not live.
All photos
-
Sweet Hearts tomatoes ripening on the vine under cover -
A truss of Sweet Hearts tomatoes -
Sweet Hearts tomato plant in a garden bed with ripe fruit on the vine -
A ripe Sweet Hearts tomato held in a gardener's hand -
Freshly picked Sweet Hearts tomatoes -
Sweet Hearts tomato sliced in the kitchen
Questions
How long does Sweet Hearts take to mature?
Sweet Hearts is ready in about 60 days from transplant.
Does Sweet Hearts need staking?
Sweet Hearts 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 Sweet Hearts be grown in a container?
Sweet Hearts is better suited to open ground or a greenhouse bed than a container.
Is Sweet Hearts resistant to disease?
No disease resistance is documented for Sweet Hearts.
See also
Other grape varieties people put next to this one.
Grows like this one
Indeterminate, early, full sun. Same support, same calendar.
