Purslane

Purslane is a fast-spreading, succulent broadleaf weed that thrives in warm weather. It often invades thin or disturbed areas of lawns, garden beds, and sidewalks where soil is compacted or moisture is retained. Its fleshy leaves and prostrate growth habit allow it to tolerate drought and heat better than most weeds, making it a persistent summer problem.

How to Identify

Purslane has smooth, reddish stems that form mats close to the ground. The leaves are thick, oval, and smooth, typically clustered at stem joints and ends. When broken, stems release a clear sap (unlike spurge, which has a milky sap). In summer, small yellow flowers appear, followed by seed capsules that release thousands of tiny black seeds—contributing to rapid spread.

Lifecycle

Purslane is a summer annual that germinates when soil temperatures rise above 70°F. Seeds can sprout in less than a day in moist soil and can remain viable for over 20 years. It grows vigorously through hot months and dies after the first frost, though seeds remain to germinate the next season.

Prevention & Control

For active infestations, remove plants before they flower or set seed. Hand-pulling is effective in moist soil, but be sure to remove the entire root system—cut stems can re-root easily. Pre-emergent herbicides applied in late spring (before soil temperatures exceed 70°F) can help prevent germination. Post-emergent broadleaf herbicides are effective on young plants, but repeated applications may be needed. Maintaining a dense, healthy turfgrass stand helps prevent reinfestation.