When to Plant Beefsteak Tomato in Agate, North Dakota (58310)
Location
Agate, North Dakota
ZIP Code
58310
USDA Zone
3b
Last Frost
Wednesday, May 20, 2026
📅 Planting Calendar
Start Seeds Indoors Wednesday, April 8, 2026
Transplant Outdoors Wednesday, June 3, 2026
Pro Tip: Start Beefsteak Tomato seeds indoors 6 weeks before your last frost date for best results.
🌿 Plant Details
Scientific Name Solanum lycopersicum
Days to Maturity 85 days
Mature Height 60-96"
Spread 36"
Type Indeterminate
Fruit Size Large (10-16 oz)
☀️ Growing Requirements
☀️
Sun
Full Sun (6-8 hours)
💧
Water
Regular (1-2 inches/week)
↔️
Spacing
36" apart
🌱
Planting Depth
0.25" deep
Seeds typically germinate in 7-14 days
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Growing Beefsteak Tomato in Zone 3b
Beefsteak Tomato (Solanum lycopersicum) is a popular garden vegetable. In Agate, North Dakota, which is in USDA Hardiness Zone 3b, you should start seeds indoors around Wednesday, April 8, 2026.
Your average last frost date is Wednesday, May 20, 2026. Plan to transplant your Beefsteak Tomato seedlings outdoors around Wednesday, June 3, 2026, about 2 weeks after your last frost date.