Coast Redwood Seed Germination: Double Stratification Sometimes Needed

Sequoia sempervirens: 40-Year Tree Cones Yield Viable Seeds

Redwood cones full of seeds—germination possible with stratification.

Primary Protocol

1. Seeds in damp towel, sealed bag
2. Refrigerate 90 days (not freezer)
3. Pot ½ inch deep, moist not soggy
4. Emergence 3-4 weeks (sporadic)
5. If nothing in 3 months: repeat 3-month stratification

Outdoor Alternative

Plant in pots, leave outdoors all winter. Water periodically. Natural stratification.

Multiple Cycles

Some redwood seeds need multiple cold/warm cycles to break dormancy. Persistence pays.