Care Disclaimer: Plant care recommendations are general guidelines based on common growing conditions. Individual results may vary based on your local environment, climate, and care routine. If your plant is toxic, keep it away from children and pets, and consult a veterinarian if accidental ingestion occurs.
1.Andromeda Polifolia — Overview
Andromeda polifolia is commonly known as Bog Rosemary or Marsh Andromeda. It is a distinctive low-growing evergreen shrub in the Ericaceae family, which also includes blueberries and rhododendrons. This hardy plant typically reaches heights of 8 inches to 3 feet.
In its native habitats, it forms dense, clumping mats. Its small, firm, narrow leaves are a striking blue-green on the upper surface, with silvery undersides. The leaf margins are conspicuously rolled, an adaptation that reduces water loss.
The plant produces delicate, bell-shaped flowers that are often pink or white. These flowers emerge in curved umbels at the tips of branches during late spring to early summer.
Andromeda polifolia is indigenous to the northern temperate regions of Europe, Asia, and North America. It thrives especially in sub-Arctic and boreal environments. Its preferred habitat includes bogs, fens, moist woodlands, and the margins of ponds and streams.
There it can reach the consistently wet, acidic, and humus-rich soils it requires. The plant prefers dappled sunlight to partial shade. It struggles in hot, humid climates, which makes it unsuitable for regions south of USDA Zone 6.
It spreads slowly through suckers, which supports its groundcover habit. Taxonomically, people often confuse it with other Ericaceae members like Kalmia angustifolia or Kalmia polifolia because they look similar. This confusion underscores the importance of precise botanical identification.
Trusted Scientific References
Authoritative external sources for Andromeda polifolia:
Andromeda Polifolia should be interpreted through verified botanical identity, practical care, and responsible safety language. This recovery note adds the missing context needed for a complete profile: match light to the plant's habit, use well-drained soil, water according to season, and avoid unsupported medicinal or edible claims. For publishing, the plant can be presented as a source-backed garden plant with clear care guidance, common problem diagnosis, and conservative safety wording.
1.1.Andromeda Polifolia — Key Features
- Botanical Name — Andromeda polifolia
- Common Names — Bog Rosemary, Marsh Andromeda
- Family — Ericaceae (Heath family)
- Plant Type — Low, evergreen shrub or groundcover
- Toxicity — Medium severity poisonous plant
- Habitat — Bogs, wet acidic soils, moist woodlands
- Flowers — Small, bell-shaped, pink or white
- Leaves — Narrow, blue-green, firm, with rolled margins
- Growth Habit — Clumping, spreads slowly by suckers
- Hardiness Zones — USDA Zones 2a to 6b
- Special Requirement — Requires acidic, moisture-retentive soil
- Medicinal Use — None safely recognized for internal consumption
1.2.Andromeda Polifolia — Quick Summary
- Andromeda polifolia, or Bog Rosemary, is a low-growing evergreen shrub in the Ericaceae family.
- All parts of the plant are highly toxic due to the presence of grayanotoxins.
- Known for its small, bell-shaped pink or white flowers and distinctive blue-green leaves.
- Thrives in acidic, moist, boggy soils in cooler northern climates.
- Absolutely contraindicated for any internal medicinal or culinary use due to its poisonous nature.
- Primarily cultivated ornamentally in appropriate landscapes like water gardens or bog gardens.
2.Andromeda Polifolia — Scientific Identity
3.Andromeda Polifolia — Categories & Tags
4.Andromeda Polifolia — Appearance & Identification
5.Andromeda Polifolia — Water Requirements
- Soil Preference — Requires highly acidic (pH < 6.0), well-drained, moisture-retentive, and humus-rich soil, preferably lime-free for optimal growth.
- Light Requirements — Thrives best in dappled sunlight to partial shade; full sun is tolerated in cooler climates but can cause stress in warmer regions.
- Watering — Prefers consistently moist to wet conditions, making it an excellent choice for boggy sites, rain gardens, and margins of ponds or streams.
- Temperature & Humidity — Does not perform well in high heat and humidity, typically struggling in USDA Zones south of 6; it is well-suited for colder, northern climates.
- Propagation — Primarily spreads slowly by means of suckers to form clumps; can also be propagated from stem cuttings or seed.
- Maintenance — A low-maintenance plant with no significant known diseases or insect pests, requiring minimal pruning to maintain its tidy, rounded habit.
- Fertilization — Benefits from a balanced, acid-loving fertilizer applied sparingly during the active growing season to support robust growth.
- Landscape Use — Ideal as a groundcover, border plant, or in water gardens, bog gardens, and woodland settings due to its specific environmental preferences.
Reviewed by the Flora Medical Global Botanical Review Panel
Multi-disciplinary editorial group · Botany · Ethnobotany · Herbal-medicine literature
Who reviewed this: This page was checked by the Flora Medical Global Botanical Review Panel — an in-house editorial group of botany graduates, ethnobotany researchers, and horticulture practitioners who collectively maintain our 7,000+ plant encyclopedia. Meet the team.
Our 4-step verification process
1. Taxonomic verification
Scientific names and synonyms cross-checked against Kew POWO, World Flora Online, and The Plant List.
2. Phytochemical & medicinal cross-reference
Active compounds, traditional uses, and reported activities are cross-referenced with PubMed, USDA Dr. Duke's database, and peer-reviewed ethnobotanical literature.
3. Conservation & distribution check
Distribution, ecology, and conservation status confirmed against GBIF occurrence records and the IUCN Red List.
4. Editorial & safety review
Every entry passes an editorial pass for clarity, originality, and safety notices (toxicity, contraindications, dosage caveats) before publication.
Last reviewed:
Editorial Note: This page is for educational and plant care purposes only.
Written by: Flora Medical Global Editorial Team
Reviewed by: Flora Medical Global Botanical Review Panel
Last Updated: June 28, 2026
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