Sticky Sandspurry (Spergularia macrotheca) is found primarily along the Pacific Coast on sandy beaches, rocky dunes, coastal bluffs, and just above high tide in salt marshes. It has adapted to thrive in these challenging environments and plays a vital role in the stability and ecological functioning of coastal ecosystems. Plants often form dense colonies in maritime rock crevices, forming a soft groundcover with attractive white to pink flowers that create a delicate and colorful display in contrast to their harsh habitat. The narrow, succulent-like leaves can withstand harsh saline conditions and high levels of sunlight.
 
Sticky Sandspurry blooms in the spring and early summer, typically from April to June. The species excels at stabilizing sandy soils, preventing erosion, and providing habitat for various coastal wildlife species in what may be otherwise barren settings. The flowers are attractive to a wide range of pollinators, including native bees, butterflies, and other small insects. Tiny solitary bees are especially adept at reaching the nectar within the small flowers. The dense growth habit and mat-like form provide shelter and nesting sites for coastal birds and small mammals, while the plant's copious small seeds are also a valuable food source for certain songbird species.
 
The plant's ability to tolerate salt spray and thrive in nutrient-poor soils makes it an excellent choice for coastal landscaping. It is adaptable to a variety of conditions, so long as it receives full sun and soil is not excessively damp, but thrives in sandy soils with good drainage. Seeds can be surface sown on prepared soil in spring. Maintain even moisture until seedlings are well established.