Alkaline-tolerant plants and shrubs thrive in soils with high pH levels, where lime or chalk makes conditions less acidic than most plants prefer. A lilac or honeysuckle, for example, shrugs off alkaline ground that might stunt others, making them champs for clients with chalky or urban soils. They’re a practical choice for tough sites, needing little beyond good drainage to stay healthy. For your landscaping team, this trait flags shrubs that can handle a tricky niche without extra soil tweaking, streamlining project planning.