Bishop's Weed

Give bishop’s weed an enclosed assignment: a bed bounded by paving, a durable edging system, or another physical break that separates it from lawns and mixed borders. Reserve it for ground beneath established trees or shrubs only when the planting can be reached from an adjoining path for inspection and control. Keep it out of narrow beds beside neighboring gardens, perennial borders, and areas intended for frequent plant changes. Its low canopy can make a clear foreground below taller woody plants, but it should not share close quarters with less vigorous companions.

Plant on 18-inch centers for the groundcover to knit into a continuous layer. That initial spacing is tighter than its eventual 3-foot spread, so plan the whole area as one colony rather than treating each plant as a permanent individual clump. Leave a reachable edge along a path, lawn strip, or hard surface so advancing growth can be noticed and managed. Do not use its mature width as clearance for a mixed planting; preserve that clearance instead.

Place it in partial shade, including deeper shaded corners where a low cover is needed. Moderate water suits an established groundcover bed; lay out irrigation so the patch can be watered without routinely soaking adjacent plants with different needs. Avoid placing it where prolonged hot exposure is expected, since the foliage is better positioned away from the strongest afternoon sun.

Small white flower clusters arrive in early summer above the foliage. If seed spread would add to the containment problem, remove flower heads before they mature. Foliage can look tired in summer heat; a high mowing or shearing can refresh the patch, provided the planting is accessible enough for that work.^[1][2]