Description
Commonly known as:
Marine Blue Germander Sage, Marine Blue Sage​
Description of Plant:
This low-growing shrub features small, textured, and fragrant silvery-gray leaves. Upright stems bear spikes of dark violet-blue, two-lipped flowers, creating a striking contrast against the foliage. The plant has a rounded, mounding growth habit and spreads slowly by underground runners.
Growth Habit:
Reaches 1–2 feet in height and 2–3 feet in width, forming a dense, compact mound.​
Watering Instructions:
Once established, ‘Marine Blue’ is drought-tolerant and requires minimal watering. Water regularly during the first few weeks after planting to encourage strong root development. Thereafter, water only during prolonged dry periods.​
Soil Needs:
Prefers well-drained soils, including sandy or rocky types. Tolerates clay soils if not compacted.​
Sun Requirements:
Thrives in full sun to partial shade. In hotter inland areas, some afternoon shade is beneficial.​
Indoor or Outdoor Tips:
Best suited for outdoor cultivation in gardens, borders, or containers. Not typically grown indoors.​
Perennial or Annual:
Perennial in USDA zones 8–11.​
Additional Tips:
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Deadhead spent blooms and lightly prune in fall or winter to maintain shape and prevent woodiness.
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Deer-resistant and attracts a variety of pollinators.
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Historically used by indigenous peoples to make a minty tea for sore throats and digestive issues.
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