How to grow sycamore trees from cuttings?

Propagating sycamore trees from cuttings can be challenging but possible with the right technique! I've had success with this method:

Take hardwood cuttings in late winter from young, vigorous trees. Select pencil-thick branches from previous season's growth, 8-12 inches long with several buds. Make bottom cut just below a node, top cut just above.

Use rooting hormone containing IBA and plant in well-draining mix of sand and peat. Maintain high humidity and bottom heat around 70-75°F. Rooting can take 8-12 weeks and success rates are often low.

Softwood cuttings in early summer can also work but require careful humidity management. Sycamores root more reliably from seed, but cuttings preserve specific characteristics.

Be patient - even successful cuttings may grow slowly initially. The Royal Horticultural Society propagation guide has general techniques that apply!