Asarum vs Labrador Tea Plant Comparison

Compare these two plants side by side — care needs, key differences, and which is right for your home.

Asarum

Asarum

Asarum canadense

VS
Labrador Tea

Labrador Tea

Rhododendron groenlandicum (syn. Ledum groenlandicum)

Asarum

Asarum

Asarum canadense

Asarum canadense, or Canadian Wild Ginger, is a rhizomatous herbaceous perennial typically found in moist, deciduous woodlands. It's known for its kidney-shaped to heart-shaped, velvety green leaves that grow in pairs from creeping rhizomes. The plant produces a single, bell-shaped, brownish-purple flower near the ground in spring, often hidden beneath the foliage. While called 'ginger', it's not related to culinary ginger and should not be consumed as a substitute. It is primarily grown as a groundcover in shaded gardens for its attractive foliage and ability to suppress weeds. It is NOT suited for indoor growing.

Aristolochiaceae Eastern North America
✨ Features: Attractive foliage, effective groundcover, deer resistant.
📖 Read Complete Asarum Guide
Labrador Tea

Labrador Tea

Rhododendron groenlandicum (syn. Ledum groenlandicum)

Labrador Tea is an evergreen shrub native to northern North America. It typically grows to a height of 0.5 to 1.5 meters. The leaves are oblong, leathery, and dark green on top, with a dense, rusty-brown woolly underside. It is primarily an outdoor plant, valued for its aromatic foliage and clusters of white flowers in spring. People grow it for its traditional medicinal uses (though caution is advised), ornamental value in native plant gardens, and historical significance as a tea substitute.

Ericaceae North America, Greenland
✨ Features: Aromatic foliage, traditional medicinal uses (use with extreme caution and research), attractive flowers.
📖 Read Complete Labrador Tea Guide

Quick Plant Comparison

Feature Asarum Labrador Tea
Light Full to partial shade. Cannot tolerate direct sunlight. Full sun to partial shade
Watering Every 3-7 days, depending on weather and soil drainage. Every 1-2 weeks, depending on weather and soil drainage
Humidity 50-70% 30-50%
Temperature 10-24°C 10-24°C
Care Level Expert Expert
Growth Rate Moderate Slow
Max Height 0.15-0.3 meters (outdoors) N/A (Primarily an outdoor plant; indoor growth severely limited)
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Rich, well-draining soil with plenty of organic matter. A mix of compost, leaf mold, and garden soil is ideal. Acidic, well-draining soil. A mix of peat moss, sand, and compost is ideal.
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 10 minutes weekly (weeding, watering) 30 minutes weekly (mostly weeding and watering)

🔬 Botanical Information — Comparing These Plants

Asarum

Scientific Name Asarum canadense
Family Aristolochiaceae
Native To Eastern North America
Also Known As Canadian Wild Ginger, Broad-leaved Asarum, Indian Ginger
Leaves The leaves are kidney-shaped to heart-shaped, typically 10-20 cm wide, with a velvety texture and a deep green color. They have prominent veins and a slightly ruffled edge.
Flowers The plant produces a single, bell-shaped flower near the ground in spring. The flower is typically brownish-purple and often hidden beneath the foliage. It rarely flowers indoors.

Labrador Tea

Scientific Name Rhododendron groenlandicum (syn. Ledum groenlandicum)
Family Ericaceae
Native To North America, Greenland
Also Known As Labrador Tea, Muskeg Tea, Swamp Tea, Hudson's Bay Tea
Leaves The leaves are oblong to elliptic, 2-5 cm long, and leathery in texture. The upper surface is dark green and glossy, while the underside is covered in a dense, rusty-brown woolly fuzz (tomentum). The leaf margins are entire and slightly rolled under.
Flowers It produces clusters of small, white, five-petaled flowers in late spring to early summer. Flowering is more prolific in sunny locations. It will not flower indoors.

📏 Size & Growth — Plant Comparison

Asarum

Height 0.15-0.3 meters (outdoors)
Spread Spreads indefinitely via rhizomes (outdoors)
Growth Rate Moderate
Growth Pattern Spreads horizontally via rhizomes, forming a dense groundcover. The leaves emerge in pairs from the rhizomes.

Labrador Tea

Height N/A (Primarily an outdoor plant; indoor growth severely limited)
Spread N/A (Primarily an outdoor plant; indoor growth severely limited)
Growth Rate Slow
Growth Pattern It grows as an upright, multi-stemmed shrub, typically reaching a height of 0.5 to 1.5 meters. It has a relatively slow growth rate and forms a dense, bushy habit.

🌱 Propagation — Comparing Plant Growth

Asarum

Methods: Division, Seed

Difficulty: Moderate

Tips: Divide rhizomes in early spring or fall. Sow seeds in fall for germination the following spring. Ensure good drainage and consistent moisture.

Labrador Tea

Methods: Stem cuttings, Seed, Layering

Difficulty: Moderate

Tips: Take semi-hardwood cuttings in late summer. Use rooting hormone and provide high humidity. Seeds require stratification before sowing.

✨ Benefits & Features — Comparing Plant Value

Asarum

The plant's unique bell-shaped flowers are often hidden beneath the foliage. It is also known for its ginger-like aroma when the rhizomes are crushed, despite not being related to true ginger.

  • ✓ Provides groundcover in shady areas
  • ✓ Attracts pollinators
  • ✓ Deer resistant
  • ✓ Erosion control on slopes
  • ✓ Adds visual interest with unique foliage
  • ⚠️ Toxic to pets

Labrador Tea

The rusty-brown woolly underside of the leaves is a distinctive feature. It also has a strong, aromatic scent when the leaves are crushed. The plant's historical use as a tea substitute makes it unique.

  • ✓ Provides habitat for native pollinators.
  • ✓ Adds visual interest to the garden with its evergreen foliage and flowers.
  • ✓ Offers a unique aroma to the surrounding area.
  • ✓ Historically used for medicinal purposes (use with caution).
  • ✓ Can be used as a tea substitute (use with extreme caution).
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Asarum

Repotting Not applicable for outdoor groundcover. If attempting indoors, repot annually in spring to accommodate rhizome growth.
Pruning Remove dead or damaged foliage as needed.
Fertilizing Apply a balanced, slow-release fertilizer in early spring. Avoid over-fertilizing.
Seasonal Care In spring, apply fertilizer and remove any dead foliage. In summer, ensure adequate moisture during dry spells. In fall, divide rhizomes if desired. In winter, the foliage dies back, and the plant goes dormant.

Labrador Tea

Repotting N/A (Primarily an outdoor plant)
Pruning Prune lightly after flowering to maintain shape and remove dead or damaged branches.
Fertilizing Acid-loving plant fertilizer, diluted to half strength, applied in spring and early summer.
Seasonal Care In winter, protect from harsh winds and heavy snow. In summer, ensure adequate moisture and avoid scorching sun.

🌞 Light Requirements

Asarum

Full to partial shade. Cannot tolerate direct sunlight.

Low light tolerant: ❌ No

Labrador Tea

Full sun to partial shade

Low light tolerant: ❌ No

💧 Watering Needs

Asarum

Keep soil consistently moist, but not waterlogged. Water when the top inch of soil feels dry. Overwatering can lead to root rot, while underwatering will cause the leaves to wilt and brown.

Labrador Tea

Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Ensure good drainage. Signs of overwatering include yellowing leaves and a musty smell. Underwatering is indicated by wilting and dry, brittle leaves.

🌡️ Temperature & Humidity

Asarum

Temperature: 10-24°C

Humidity: 50-70%

Labrador Tea

Temperature: 10-24°C

Humidity: 30-50%

🤔 Which Plant Is Right For You?

Asarum

Asarum

Asarum canadense
Care: Expert Time: 10 minutes weekly (weeding, watering) Beginner: No

Gardeners looking for a shade-loving groundcover in woodland settings.

✅ Choose This Plant If...

  • You have a shady woodland garden and need a groundcover
  • You want a deer-resistant plant
  • You appreciate unique foliage textures
  • You want to attract pollinators to your garden (though flowers are hidden)
  • You are looking for a native plant to support local ecosystems.

❌ Skip This Plant If...

  • You have pets that might ingest the plant
  • You do not have a suitable outdoor location with shade and moist soil
  • You are looking for a low-maintenance indoor plant.
📍 Ideal Location: Shady woodland garden or shaded area under trees.
🎨 Style: Woodland, Naturalistic, Cottage
🏠 Apartment Friendly: No
⚠️ Contains aristolochic acids, which are toxic to dogs, cats, and horses. Symptoms include vomiting, diarrhea, and kidney damage. All parts of the plant are considered toxic.
Labrador Tea

Labrador Tea

Rhododendron groenlandicum (syn. Ledum groenlandicum)
Care: Expert Time: 30 minutes weekly (mostly weeding and watering) Beginner: No

Experienced gardeners in cooler climates with acidic soil who want to grow native plants.

✅ Choose This Plant If...

  • You live in a cool climate with acidic soil.
  • You are interested in native plants of North America.
  • You want an evergreen shrub with aromatic foliage.
  • You are an experienced gardener looking for a challenge.
  • You are interested in the historical uses of plants.

❌ Skip This Plant If...

  • You live in a warm climate with alkaline soil.
  • You are a beginner gardener.
  • You have pets that might ingest the plant.
  • You are looking for an easy-to-grow indoor plant.
📍 Ideal Location: Outdoor garden or woodland setting with acidic soil and partial to full sun.
🎨 Style: Naturalistic, Woodland, Cottage
🏠 Apartment Friendly: No
⚠️ Contains grayanotoxins which can cause gastrointestinal upset, cardiovascular problems, and neurological issues in dogs, cats, and horses. All parts of the plant are considered toxic.

🎯 Quick Verdict

Best for Beginners Neither ideal
Pet Friendly Neither - caution
Less Maintenance Similar effort
Apartment Friendly Check space

⚡ Key Differences Between These Plants

📈

Asarum has moderate growth, while Labrador Tea grows slow.

💡 Pro Tips For Comparing These Plants

Asarum Care Tips

Asarum canadense is primarily an outdoor plant and is very difficult to grow indoors. It requires specific shade and moisture conditions that are hard to replicate indoors. It also spreads via rhizomes, which would quickly outgrow a container. Toxicity to pets is a major concern.

  • Ensure excellent drainage to prevent root rot
  • Provide consistent moisture, especially during dry periods
  • Apply a layer of mulch to retain moisture and suppress weeds
  • Divide rhizomes every few years to prevent overcrowding
  • Monitor for slugs and snails and take appropriate action
❄️ Winter: The foliage dies back in winter, and the plant goes dormant. A layer of mulch can help protect the rhizomes from extreme cold.
☀️ Summer: Ensure adequate moisture during dry spells. Provide shade to protect the leaves from scorching.

Labrador Tea Care Tips

Labrador Tea is primarily an outdoor plant and is very difficult to grow indoors. It requires acidic soil, full sun, and well-draining conditions. Indoor cultivation is challenging due to the plant's need for specific environmental conditions and its intolerance of indoor air.

  • Ensure the soil is acidic by adding peat moss or sulfur.
  • Water deeply but infrequently, allowing the soil to dry slightly between waterings.
  • Protect from harsh winter winds.
  • Prune lightly after flowering to maintain shape.
  • Monitor for pests and diseases regularly.
❄️ Winter: Protect from harsh winds and heavy snow. Mulch around the base of the plant to insulate the roots. Reduce watering during dormancy.
☀️ Summer: Ensure adequate moisture, especially during dry spells. Provide some shade during the hottest part of the day to prevent leaf scorch. Monitor for pests and diseases.

⚠️ Common Problems & Solutions — Plant Care Comparison

Asarum

Common Issues: Root rot, slugs and snails, leaf spot
Solutions: Ensure good drainage to prevent root rot. Use slug and snail bait or handpick them off the plants. Apply a fungicide for leaf spot.

Labrador Tea

Common Issues: Iron chlorosis (yellowing leaves due to alkaline soil), Root rot, Spider mites
Solutions: Iron chlorosis: Amend soil with sulfur or iron chelate. Root rot: Improve drainage and reduce watering. Spider mites: Treat with insecticidal soap or neem oil.

❓ Frequently Asked Questions — Comparing These Plants

Asarum

What are the light requirements for Asarum?

Asarum requires shade to partial shade. Direct sunlight can scorch its delicate leaves, leading to browning and stunted growth. Ideal placement is under the canopy of trees or on the north side of a building, where it receives filtered sunlight or dappled shade. Avoid locations that receive intense afternoon sun. If growing Asarum indoors, place it near a north-facing window or use sheer curtains to diffuse the light. Insufficient light can result in leggy growth and reduced flowering. Observe the plant’s foliage for signs of stress, such as pale or yellowing leaves, and adjust the light accordingly. Remember that the intensity of light changes throughout the year, so monitor your Asarum’s light exposure and adjust its placement as needed.

How do I care for Asarum?

Asarum thrives in shady locations with well-draining, humus-rich soil. Water regularly, especially during dry periods, keeping the soil consistently moist but not waterlogged. Fertilize sparingly in early spring with a balanced, slow-release fertilizer to encourage healthy growth and blooming. Avoid direct sunlight, which can scorch the leaves. Mulch around the plants to retain moisture and suppress weeds. Prune away any dead or damaged foliage to maintain appearance and prevent disease. Asarum prefers cool temperatures and high humidity. Provide good air circulation to prevent fungal diseases. Repot container-grown plants every few years in spring. Monitor for pests such as slugs and snails and treat accordingly. With proper care, Asarum will reward you with its beautiful foliage and unique flowers.

How do I propagate Asarum?

Asarum is best propagated by division in early spring or fall. Carefully dig up the plant and divide the rhizomes into sections, ensuring each section has roots and foliage. Replant the divisions in well-draining, humus-rich soil. Keep the soil consistently moist until the plants are established. Stem cuttings are not a reliable method for Asarum propagation. Keiki, or plantlets, do not naturally form on Asarum. Division is the most successful method for propagating this plant. Ensure the divisions are planted at the same depth as the original plant. Mulch around the newly planted divisions to retain moisture and suppress weeds. Water thoroughly after planting.

Labrador Tea

What are the light requirements for Labrador Tea?

Labrador Tea requires bright, indirect light for optimal growth and abundant flowering. Direct sunlight can scorch the leaves, especially during the hottest part of the day. An east-facing window or a location with filtered sunlight is ideal. If grown indoors, supplement with grow lights during the darker winter months to ensure adequate light exposure. Insufficient light can lead to leggy growth and reduced flowering. Rotate the plant regularly to ensure even light exposure on all sides. Monitor the leaves for signs of sunburn (brown spots) or etiolation (pale, stretched growth), adjusting light levels accordingly.

How do I care for Labrador Tea?

Labrador Tea thrives in acidic, well-draining soil. Water deeply when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Provide bright, indirect light for optimal growth and flowering. Fertilize sparingly with an acid-loving fertilizer during the growing season (spring and summer), following package instructions. Maintain moderate humidity, especially indoors. Prune lightly after flowering to encourage bushier growth. Protect from harsh winds and extreme temperatures. Regularly check for pests and address promptly. Repot every 2-3 years into a slightly larger container with fresh acidic potting mix. Avoid overwatering.

How do I propagate Labrador Tea?

Labrador Tea can be propagated by stem cuttings. Take 4-6 inch cuttings from new growth in spring or early summer. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cuttings in a mix of peat moss and perlite. Keep the soil moist and provide high humidity by covering with a plastic bag or humidity dome. Rooting typically occurs in 4-6 weeks. Division can be done in spring or fall by carefully separating the plant into smaller clumps. Replant the divisions in fresh acidic potting mix. Keiki propagation is not applicable for Labrador Tea.

Last updated: May 11, 2026 — Plant care data reviewed and verified by our editorial team.