How do I clean moss off a stone basin?

Gentle brushing with water preserves the natural patination and prevents damage to fragile weathered surfaces. Harsh chemical cleaners or pressure washers strip away the historic lichen and erode the soft outer layer of old stone.

Can antique stone basins stay outside in winter?

Most dense natural stone and heavy marble vessels withstand frost without sustaining structural damage. Porous cast stone or basins holding stagnant water may crack when temperatures drop below freezing, so drainage holes are essential.

What is the difference between a trough and a planter?

Troughs are generally rectangular, utilitarian vessels originally made for agricultural or kitchen use. Planters are specifically shaped for horticulture and often feature decorative pedestal bases, neoclassical details, or shell motifs.

How do I tell an 18th-century mortar from a later copy?

Early mortars display irregular hand-chiseled tool marks, dense heavy marble, and deep wear patterns from active use. Later reproductions often show uniform machine finishing, lighter modern concrete construction, or manufactured artificial ageing.