Stratifying and Planting Sycamore Seeds

Sycamore seeds need cold stratification to break dormancy. Both fridge and outdoor methods work.

Seed Preparation

• Allow green pods to ripen brown on the tree.
• Collect seeds; they can be planted immediately or stored cool/dry.

Stratification Options

1. Outdoor: Sow in pots, leave outside all winter. Keep moist; snow cover is fine. Protect from north wind.
2. Fridge: Mix seeds with damp peat/sand in a sealed bag; refrigerate 60–90 days. Then sow in warmth.

Some sources say sycamore doesn’t require stratification—try fresh seed indoors as an experiment. Keep soil moist but not soggy at all times.