The answer to 'how to care for stone walkway' is to regularly maintain and clean the stone to keep it looking its best. This includes sweeping away debris, weeding between stones, and applying a sealant periodically to protect the stone from weathering and staining.
Start by sweeping the walkway weekly to remove leaves, twigs, and other debris that can accumulate. Use a stiff-bristle broom or leaf blower to clear the stones. Next, check for any weeds or grass growing between the stones and pull them out by hand. This will help prevent damage to the stones and keep the walkway looking tidy.