Siletz
Single source · Reviewed Sep 9, 2026
Values marked like this (estimated) are model estimates, not confirmed from a source.
Open-pollinated slicer from USA. Cold-tolerant early slicer bred at Oregon State University. Ready in about 52 days from transplant.
- Open-pollinated
- 52 days to maturity (from transplant)
- Determinate
- Medium fruit
- Easy-moderate (estimated)
At a glance
- Fruit type
- Slicer 5–8 oz (140–220 g) · Oblate
- Leaf type
- Regular leaf
- Plant height
- 2–4 ft (60–120 cm) Medium height
- Spacing
- 24 × 35 in (60 × 90 cm) (estimated)
- Sunlight
- Full sun
- Position
- Handles open positions
- Growing sites
- Greenhouse · Polytunnel · Open ground · Container
- Container growing
- Balcony friendly min. 7 gal (30 L) pot (estimated)
- Skin
-
- Red
- Interior
- Not recorded
Plant size and habit
Medium height · Determinate
2–4 ft (60–120 cm) · Regular leaf
Siletz is a determinate plant that stops growing at a set height and ripens most of its crop in one concentrated window; a cage is usually enough support. Expect a plant of 2–4 ft (60–120 cm).
Flavor
“Cold-tolerant early slicer bred at Oregon State University.”
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
- Slicing
Origin
A determinate, cold-tolerant early slicer bred at Oregon State University for short-season and coastal climates.
Sources
Where to buy seeds
| Shop | Offer | Price | Packet | Stock | |
|---|---|---|---|---|---|
| Tomato Growers Supply Company | Seeds | $3.55Checked Sep 16, 2026 | Pack (20 seeds) | Check availability | Buy |
- BuyTomato Growers Supply CompanySeeds
Pack (20 seeds)
Check availability
$3.55Checked Sep 16, 2026
Links may earn us a commission at no cost to you. Prices checked Sep 16, 2026; not live.
All photos
-
Siletz tomatoes ripening on the vine under cover -
A truss of Siletz tomatoes -
Siletz tomato plant in a garden bed with ripe fruit on the vine -
A ripe Siletz tomato held in a gardener's hand -
Freshly picked Siletz tomatoes -
Siletz tomato sliced in the kitchen
Questions
How long does Siletz take to mature?
Siletz is ready in about 52 days from transplant.
Does Siletz need staking?
Siletz is a determinate plant that stops growing at a set height and ripens most of its crop in one concentrated window; a cage is usually enough support. Expect a plant of 2–4 ft (60–120 cm).
Can Siletz be grown in a container?
Yes — Siletz grows well in a container of at least 30 L (7 gal).
Is Siletz resistant to disease?
No disease resistance is documented for Siletz.
See also
Other slicer varieties people put next to this one.
Grows like this one
Determinate, early, full sun. Same support, same calendar.
