The answer to 'hardscaping yellowing' is that it is a common issue caused by a variety of factors, including excessive sun exposure, mineral buildup, and improper drainage. Symptoms can include faded or discolored pavers, bricks, or concrete, as well as a general dull or weathered appearance.
To address hardscaping yellowing, start by identifying the underlying cause. If it's due to sun exposure, consider adding more shade or using lighter-colored materials. Mineral buildup can be addressed by regular cleaning and sealing. Poor drainage may require adjustments to the landscape or hardscaping design. In many cases, a combination of these solutions will be necessary. If the issue persists or you're unsure of the cause, it's best to consult a professional landscaper who can assess the problem and recommend the appropriate course of action.