Leyland Cypress Seed Cones: Not Galls, But Sterile Seeds

Those small green spiked balls on your young Leyland cypress? They're seed cones, not galls. Slice one open and you'll find brown seed-like structures. But don't bother planting them—Leyland cypress is a hybrid (Cupressus macrocarpa × Chamaecyparis nootkatensis), and its seeds are sterile. They won't germinate.

This is normal for mature Leylands. No action needed—just a botanical curiosity.

Leyland cypress seed cone