How to Start Bean Seeds
Fast, easy, and rewarding - beans are one of the best vegetables for beginners!
Direct Sowing is Usually Best
Beans grow fast and don't like root disturbance. Direct sowing after last frost is usually more successful than transplanting. Only start indoors if you have a very short growing season.
Step-by-Step Guide
Check Soil Temperature
Wait until soil is at least 60°F (70°F+ is ideal). Cold, wet soil causes bean seeds to rot. Use a soil thermometer or wait 1-2 weeks after last frost.
Use Biodegradable Pots (If Starting Indoors)
If starting indoors, use 3-4" peat pots to avoid root disturbance at transplant. Fill with moist seed starting mix.
Plant Seeds
Plant seeds 1-2 inches deep, eye facing down. Plant 2 per pot if starting indoors, or space 3-4 inches apart if direct sowing.
Keep Warm & Moist
Beans germinate best at 70-80°F. Keep soil moist but not waterlogged - too wet causes rot. Expect sprouts in 4-10 days.
Provide Light
Once sprouted, give 12-16 hours of bright light. Beans grow fast and can get leggy without enough light. Keep lights close to seedlings.
Transplant Quickly
Transplant when seedlings have 2-3 true leaves (about 2-3 weeks). Don't let them get rootbound! Plant the entire peat pot into the ground.
Bush vs Pole Beans
Bush Beans
- + Compact plants (12-24" tall)
- + No support needed
- + Harvest all at once
- + Great for containers
- - Shorter harvest window
Pole Beans
- + Higher yield per square foot
- + Continuous harvest all season
- + Easier to pick (no bending)
- - Need trellis or support
- - Take longer to mature
Frequently Asked Questions
Should I start beans indoors or direct sow?
Direct sowing is usually best for beans - they don't like root disturbance. Start indoors only if you have a short growing season. If starting indoors, use peat pots to minimize transplant shock.
When can I plant bean seeds?
Plant beans after all danger of frost has passed and soil has warmed to at least 60°F (ideally 70°F+). Cold, wet soil causes seeds to rot. Wait 1-2 weeks after last frost date.
How deep should I plant bean seeds?
Plant bean seeds 1-2 inches deep. In heavy or wet soil, plant shallower (1 inch). In sandy or dry soil, plant deeper (2 inches). Plant with the eye facing down.
Why are my bean seeds rotting?
Bean seeds rot in cold, wet soil. Wait until soil is 60°F+, ensure good drainage, and don't overwater. Avoid soaking seeds before planting in wet conditions - it can cause rot.