51223Just like real rosemary, the coast rosemary can either be a low ground cover or a dense shrub. Lower cultivars can get nearly five feet wide without getting much more than a foot high. Shrubby types can get nearly six feet tall without getting much wider. Shrubby types are more popular than ground cover types, and are often pruned so that they do not get too broad.

The tiny leaves of coast rosemary are silvery or grayish green, and can be variegated. Small white or very pale lavender flowers bloom sporadically throughout the year, and can be profuse in spring. Established plants do not need much water, but are probably happiest if watered somewhat regularly through summer. Shade subdues silvery foliar color and inhibits bloom.

Shrubby coast rosemary makes a delightful low hedge. It can be shorn like any other formal hedge, but is best where it has space to develop naturally. If space is limited, but not ‘too’ limited, a coast rosemary hedge can be aggressively shorn once annually at the end of winter, and then allowed to grow wild for the rest of the year.

2 thoughts on “Coast Rosemary

  1. Is ‘coast rosemary’ the same as what is labeled ‘prostrate rosemary,’ my low growing rosemary that I pot up and bring indoors for the winter? It doesn’t spread much during the short growing season in New England and would die during our harsh winters.

    Liked by 1 person

    1. There are prostrate cultivars of both specie, coast rosemary, and (culinary) rosemary. However I have never seen the prostrate form of coast rosemary described as such. It is just known as trailing coast rosemary. I have only seen the more common rosemary described as ‘prostrate’. It is the most common form of rosemary.

      Liked by 1 person

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