Why You Should Leave Purslane Growing

Most gardeners spend hot summer afternoons waging war against sprawling green invaders creeping through bed soil and driveway cracks. At the top of many weeding hit-lists sits purslane (Portulaca oleracea), a thick-stemmed, smooth-leaved plant that forms dense ground mats.

Before reaching for the hoe or hand weeders, consider giving this resilient plant a stay of execution. Far from being a mere nuisance, purslane is a ecological powerhouse, a living mulch, and one of the most nutritious wild greens on the planet.

Here is why letting purslane grow in your garden might be one of the best choices you make this season.

1. It Acts as a Self-Sustaining "Living Mulch"

Purslane's flat, spreading growth habit creates a thick canopy directly over bare earth. Rather than choking out deep-rooted garden crops, this fleshy succulent works as a living ground cover:

• Moisture Retention: By shading the soil surface, it dramatically slows down water evaporation during scorching summer days.

• Soil Temperature Control: It creates a cooler microclimate near the soil surface, keeping delicate root zones protected from intense sun.

• Weed Suppression: By filling empty space, it prevents harsher, deep-taproot weeds from taking root and establishing.

2. A Deep-Digging Nutrient Accumulator

Purslane acts as a natural soil improver. Its taproots reach deep into undisturbed subsoil to break up compacted dirt and extract essential minerals—such as calcium, magnesium, potassium, and iron—that shallow-rooted vegetables often cannot access on their own.

Through a process known as ecological facilitation, companion plants like corn, peppers, or tomatoes can share access to these unlocked nutrients and moisture pathways. At the end of the season, tilling or chopping purslane back into the soil turns it into a high-grade green manure, returning those concentrated minerals straight into your topsoil.

3. It's an Edible Superfood Packed with Omega-3s

Beyond its...

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