Purslane (Portulaca oleracea) is a common plant, a succulent, often found in gardens, known for its vigorous growth habit and ability to spread readily. It can appear in various environments, from cultivated beds to sidewalk cracks. Gardeners frequently wonder if this prevalent plant is a target for deer browsing. This article explores whether deer consume purslane and the factors influencing their foraging choices.
Do Deer Eat Purslane?
Deer eat purslane, especially when other more preferred food sources are scarce. While not a primary food choice, purslane is palatable, and deer have been observed browsing on it. In some cases, deer have even shown a preference for purslane over other common forage plants.
Purslane offers nutritional benefits that make it appealing to deer. As a succulent, its high water content is attractive during dry periods. Beyond hydration, it is rich in omega-3 fatty acids, vitamins (A, C, B-complex), and minerals like potassium, magnesium, calcium, and iron. This nutritional profile, combined with its tender texture, makes it a viable food source for deer, especially young plants.
Factors Influencing Deer Foraging
Several factors influence whether deer browse on plants like purslane. The availability of preferred food sources is a significant determinant; if their primary diet of woody plants, forbs, and mast is limited, deer will expand their foraging to include less favored plants. This often occurs during drought, late winter, or early spring when natural forage is scarce.
Deer population density also plays a role in browsing pressure. Higher populations increase competition for food, leading deer to browse a wider variety of plants. Regional differences and learned behaviors can also influence deer preferences, as deer adapt their diets to what is locally abundant. Additionally, a plant’s condition, such as young and tender growth, is more appealing than older, tougher foliage.
Managing Purslane in Deer-Prone Gardens
For gardeners concerned about deer consuming purslane or other plants, various deterrent strategies can help. Fencing remains one of the most effective physical barriers against deer, with recommended heights typically ranging from 7 to 8 feet to prevent deer from jumping over. Shorter fences, around 4 to 6 feet, can still be effective if combined with a psychological deterrent, such as a second wire or fishing line strung higher, creating an illusion of a more formidable obstacle.
Deer repellents can be applied to plants or surrounding areas. These often work by emitting strong odors or tastes that deer find unpleasant, such as those derived from rotten eggs, garlic, hot peppers, or predator urine. Repellents require regular reapplication, especially after rain, as their effectiveness diminishes over time. Strategic planting is another approach, using deer-resistant species with strong scents or unpalatable textures, like lavender, marigolds, or mint, around vulnerable plants to create a buffer. Regular garden vigilance, monitoring for signs of browsing, allows for timely adjustments.