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Rosemary – Trailing

Rosmarinus officinalis ‘Prostratus’

Trailing Rosemary
Groundcover

A low, spreading form of the culinary herb, with fragrant needle-like leaves and pale blue flowers in late winter and spring. It takes full Phoenix sun, needs little water once established and cascades beautifully over walls and planter edges.

Medium
Full sunpreferred
BloomsSpring – Winter
Ask a designer about it
Mature size2–3′ tall, 4–8′ wide
Growth rateModerate
Water useLow once established
SunFull sun to part shade
BloomPale blue, late winter into spring
Cold hardinessAbout 14°F; rarely affected by Phoenix winters
FoliageFragrant, needle-like, dark green leaves; evergreen
EdibleYes, the same culinary herb as upright rosemary

Living with it in the Phoenix Valley

Watering

Follow the shrub, groundcover and succulent schedule in our Landscape Care guide. Once established it needs very little. Overwatering and heavy, poorly drained soil are the main causes of decline, so err on the dry side.

Pruning

Trim the tips lightly and often to keep it dense. Avoid cutting back into old, bare wood, which does not reliably sprout new growth.

Soil

Good drainage is essential. On heavy caliche, a raised bed or slope helps.

How our designers use it

Cascading over walls

Its arching stems spill over retaining walls, raised planters and the edges of terraces.

Slopes and broad beds

A few plants cover a lot of ground on banks and hillsides with little water.

Near outdoor kitchens

It doubles as a kitchen herb, so our designers like it close to grills and dining areas.

Good to know

Around the pool

Soft, thornless and low-litter, so it works near decks. The winter flowers do draw bees, so we keep it back from the water’s edge and seating.

Foot traffic

It does not tolerate being walked on. Keep it off paths.

Pairs well with

Similar plants

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Picturing one in your yard?

Our designers can show you where it will thrive, what to plant beneath it and how it fits the rest of your landscape.

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