Arenaria montana 'Avalanche'


The bloom power of this plant creates an impressive show that has tremendous impact when grown en masse.  It is even more spectacular when spring-flowering bulbs are mixed in.

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This new and improved selection of the species A. montana freely produces larger white flowers over a longer bloom period on more uniform, compact plants.  A cousin of Dianthus, Arenaria m. ‘Avalanche’ forms a prostrate, neatly spreading mat of tiny, lance-shaped, grey-green leaves.  The evergreen foliage is blanketed by an “avalanche” of single, white flowers in late spring to early summer.


4-6 in


12-12 in

Hardiness Zone:

4 - 7

Interesting Notes:

A cousin of the popular Dianthus genus, Sandwort is still relatively unknown to many gardeners. Their foliage is similar; this plant has narrow, glossy green leaves that form prostrate mats of foliage. It is the perfect substitute for moss in sunny areas. It will quickly fill in the spaces between stepping stones or trail down the sides of rock walls.

Sandwort Growing and Maintenance Tips

Sandwort should be grown in full sun or partial shade and well-drained soil. Because it has a shallow root system, it needs to be watered during dry periods in spring and summer. Later in the season, as the temperature begins to cool off, it can tolerate some dryness. Propagate by division in late summer or early fall.

Arenaria montana 'Avalanche' Characteristics


  • Ground Cover
  • Border


  • Sun Tolerant
  • Morning Sun / Afternoon Shade

Growth Rate in the Garden

  • Medium

Season of Interest (Flowering)

  • Late Spring / Early Summer

Soil Moisture Needs

  • Dry
  • Average