Lemon Boy
Single source · Reviewed Sep 9, 2026
Values marked like this (estimated) are model estimates, not confirmed from a source.
Hybrid F1 slicer from USA, 1984. Clear yellow hybrid slicer: low acid, mild, and unusually disease-tough for its colour. Ready in about 72 days from transplant.
- Hybrid F1
- 72 days to maturity (from transplant)
- Indeterminate
- Large fruit
- Easy-moderate (estimated)
At a glance
- Fruit type
- Slicer 7–10 oz (200–280 g) · Globe (estimated)
- Leaf type
- Regular leaf
- Plant height
- 5–7 ft (150–210 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
-
- Yellow
- Interior
-
- Yellow
Plant size and habit
Tall · Indeterminate
5–7 ft (150–210 cm) (estimated) · Regular leaf
Lemon Boy 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 5–7 ft (150–210 cm).
Flavor
“Clear yellow hybrid slicer: low acid, mild, and unusually disease-tough for its colour.”
Growing calendar
- Sow indoors
- Transplant out
- Harvest
Timing shown for temperate climates; sow indoors 6–8 weeks before your last frost date.
Disease resistance
- V Verticillium wilt
- F1 Fusarium wilt (race 1)
- N Root-knot nematodes
Uses & tags
- Slicing
- Fresh & salads
- Novelty color
- Disease tough
- Beginner friendly
Origin
Lemon Boy introduced a clear lemon-yellow slicer, not the golden shade of older yellows, with hybrid vigour and a proper disease resistance package, at a time when yellow tomatoes mostly meant fragile heirlooms. The flesh is low in acid and mild, which some read as bland and others as the point.
Sources
Where to buy seeds
| Shop | Offer | Price | Packet | Stock | |
|---|---|---|---|---|---|
| True Leaf Market | Seeds | $4.09Checked Sep 16, 2026 | 10 Seeds Pkg | Check availability | Buy |
| Tomato Growers Supply Company | Seeds | $4.95Checked Sep 16, 2026 | Pack (20 seeds) | Check availability | Buy |
| Eden Brothers | Seeds | $8.99Checked Sep 16, 2026 | Packet | Check availability | Buy |
Links may earn us a commission at no cost to you. Prices checked Sep 16, 2026; not live.
All photos
-
Lemon Boy tomatoes ripening on the vine under cover -
A truss of Lemon Boy tomatoes -
Lemon Boy tomato plant in a garden bed with ripe fruit on the vine -
A ripe Lemon Boy tomato held in a gardener's hand -
Freshly picked Lemon Boy tomatoes -
Lemon Boy tomato sliced in the kitchen
Questions
How long does Lemon Boy take to mature?
Lemon Boy is ready in about 72 days from transplant.
Does Lemon Boy need staking?
Lemon Boy 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 5–7 ft (150–210 cm).
Can Lemon Boy be grown in a container?
Lemon Boy is better suited to open ground or a greenhouse bed than a container.
Is Lemon Boy resistant to disease?
Lemon Boy carries documented resistance to Verticillium wilt, Fusarium wilt (race 1), and Root-knot nematodes.
See also
Other slicer varieties people put next to this one.
Grows like this one
Indeterminate, midseason, full sun. Same support, same calendar.
