Comfrey vs Fragrant Sumac Plant Comparison

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

Comfrey

Comfrey

Symphytum officinale

VS
Fragrant Sumac

Fragrant Sumac

Rhus aromatica

Comfrey

Comfrey

Symphytum officinale

Comfrey is a perennial herb known for its historical use in traditional medicine, though its internal use is now discouraged due to toxicity concerns. It features coarse, hairy leaves and bell-shaped flowers that are typically purple, blue, pink, or white. It grows outdoors to a height of about 1-3 feet and spreads via rhizomes. People grow it for its attractive foliage and flowers, and historically for its medicinal properties (though this is now largely avoided). It is primarily an outdoor plant and does not thrive indoors.

Boraginaceae Europe and Asia
✨ Features: Historically used in herbal medicine (though now discouraged), attracts pollinators.
📖 Read Complete Comfrey Guide
Fragrant Sumac

Fragrant Sumac

Rhus aromatica

Fragrant Sumac is a deciduous shrub typically growing 1-3 feet tall and 6-8 feet wide. It's known for its aromatic foliage, which releases a pleasant scent when crushed. The leaves are trifoliate, resembling poison ivy but without the toxicity. Inconspicuous yellowish flowers appear in spring, followed by fuzzy red berries that persist into winter. Primarily an outdoor plant, it's valued for erosion control, wildlife habitat, and fall color, which ranges from orange to red. It is not suited as an indoor plant.

Anacardiaceae Eastern and Central North America
✨ Features: Aromatic foliage, attractive fall color, drought tolerance, erosion control, wildlife value.
📖 Read Complete Fragrant Sumac Guide

Quick Plant Comparison

Feature Comfrey Fragrant Sumac
Light Full sun to partial shade Full sun to partial shade
Watering Every 1-2 weeks, depending on weather and soil drainage Once established, water deeply every 2-4 weeks during dry periods.
Humidity 30-50% 30-50%
Temperature 10-25°C 10-30°C
Care Level Expert Expert
Growth Rate Fast Moderate
Max Height N/A - Not suitable for indoor growing 2-3 feet (outdoor)
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-drained soil, loamy or sandy soil is best. Tolerates a wide range of soil types, including poor soil. Well-drained soil; adaptable to various soil types, including rocky and sandy soils.
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 10 minutes weekly (mostly weeding and watering) 15 minutes monthly (outdoor)

🔬 Botanical Information — Comparing These Plants

Comfrey

Scientific Name Symphytum officinale
Family Boraginaceae
Native To Europe and Asia
Also Known As Comfrey, Common Comfrey, Knitbone, Boneset
Leaves The leaves are large, coarse, and hairy, with an oval to lanceolate shape. They are typically dark green and can grow up to 10 inches long. The texture is rough due to the presence of bristly hairs.
Flowers Comfrey produces bell-shaped flowers that hang in clusters. The flowers are typically purple, blue, pink, or white. It rarely flowers indoors.

Fragrant Sumac

Scientific Name Rhus aromatica
Family Anacardiaceae
Native To Eastern and Central North America
Also Known As Fragrant Sumac, Aromatic Sumac, Gro-Low Sumac, Skunkbush
Leaves Trifoliate leaves, 1-3 inches long, with three leaflets. The leaflets are ovate to elliptic, with coarsely toothed margins. The leaves are dark green in summer and turn orange to red in fall.
Flowers Inconspicuous yellowish-green flowers appear in spring in dense clusters (catkins). Flowering is not a feature for indoor growing.

📏 Size & Growth — Plant Comparison

Comfrey

Height N/A - Not suitable for indoor growing
Spread N/A - Not suitable for indoor growing
Growth Rate Fast
Growth Pattern Comfrey grows as an upright, bushy perennial. It spreads aggressively via rhizomes, forming dense clumps.

Fragrant Sumac

Height 2-3 feet (outdoor)
Spread 6-8 feet (outdoor)
Growth Rate Moderate
Growth Pattern Spreading shrub with a low, mounding habit. It spreads by rhizomes and can form colonies.

🌱 Propagation — Comparing Plant Growth

Comfrey

Methods: Root cuttings, Division, Seed

Difficulty: Easy

Tips: Divide established plants in spring or fall. Root cuttings should be taken in late fall or early spring. Sow seeds directly in the garden in spring or fall.

Fragrant Sumac

Methods: Seed, Cuttings, Layering, Root Suckers

Difficulty: Moderate

Tips: For seed propagation, scarify seeds and cold stratify for 2-3 months. Take semi-hardwood cuttings in summer. Layering can be done in spring or fall. Root suckers can be dug up and transplanted.

✨ Benefits & Features — Comparing Plant Value

Comfrey

Comfrey is known for its rapid growth and ability to accumulate nutrients from the soil. It's also notable for its historical use in traditional medicine, although this is now largely discouraged due to toxicity concerns.

  • ✓ Attracts pollinators
  • ✓ Provides ground cover
  • ✓ Tolerates poor soil
  • ✓ Low maintenance
  • ✓ Historically used in herbal medicine
  • ⚠️ Toxic to pets

Fragrant Sumac

Fragrant Sumac is unique for its aromatic foliage and drought tolerance. Its trifoliate leaves resemble poison ivy but are not toxic to humans. It is also valued for its attractive fall color and wildlife value.

  • ✓ Erosion control
  • ✓ Wildlife habitat
  • ✓ Attractive fall color
  • ✓ Drought tolerance
  • ✓ Fragrant foliage
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Comfrey

Repotting N/A - Not suitable for indoor growing
Pruning Cut back foliage after flowering to encourage new growth. Remove any dead or damaged leaves.
Fertilizing Apply a balanced fertilizer (10-10-10) in early spring. Avoid over-fertilizing, as this can reduce flowering.
Seasonal Care In spring, apply fertilizer and divide plants if needed. In summer, water regularly and monitor for pests and diseases. In fall, cut back foliage after flowering. In winter, the plant will die back to the ground.

Fragrant Sumac

Repotting Not applicable as it is not suitable for indoor growing.
Pruning Prune in late winter or early spring to remove dead or damaged wood and to maintain shape.
Fertilizing Apply a balanced fertilizer (10-10-10) in early spring if needed. Avoid over-fertilizing.
Seasonal Care In winter, protect young plants from harsh weather. Prune in late winter or early spring to remove dead or damaged wood. In summer, ensure adequate moisture during dry spells.

🌞 Light Requirements

Comfrey

Full sun to partial shade

Low light tolerant: ❌ No

Fragrant Sumac

Full sun to partial shade

Low light tolerant: ❌ No

💧 Watering Needs

Comfrey

Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Comfrey prefers consistently moist soil but doesn't like to sit in standing water. Signs of underwatering include wilting leaves; overwatering signs include yellowing leaves and a musty smell.

Fragrant Sumac

Water deeply when planting and during establishment. Once established, it is drought-tolerant. Overwatering can lead to root rot. Check soil moisture before watering; allow the soil to dry out slightly between waterings.

🌡️ Temperature & Humidity

Comfrey

Temperature: 10-25°C

Humidity: 30-50%

Fragrant Sumac

Temperature: 10-30°C

Humidity: 30-50%

🤔 Which Plant Is Right For You?

Comfrey

Comfrey

Symphytum officinale
Care: Expert Time: 10 minutes weekly (mostly weeding and watering) Beginner: No

Experienced gardeners looking for a low-maintenance, fast-growing ground cover in a large outdoor space, understanding the toxicity risks.

✅ Choose This Plant If...

  • You have a large outdoor space and need a fast-growing ground cover.
  • You are interested in attracting pollinators to your garden.
  • You are an experienced gardener familiar with the plant's toxicity.
  • You want a low-maintenance plant that can tolerate a wide range of soil conditions.
  • You appreciate plants with a rich history of traditional use (though not for internal consumption).

❌ Skip This Plant If...

  • You have pets or small children who might ingest the plant.
  • You have limited space, as comfrey spreads aggressively.
  • You are looking for an easy-to-grow indoor plant.
📍 Ideal Location: Outdoor garden or meadow with full sun to partial shade.
🎨 Style: Cottage garden, Naturalistic
🏠 Apartment Friendly: No
⚠️ Comfrey contains pyrrolizidine alkaloids (PAs), which are toxic to dogs, cats, and horses. Symptoms include liver damage, vomiting, diarrhea, and abdominal pain. All parts of the plant are toxic, but the roots contain the highest concentration of PAs.
Fragrant Sumac

Fragrant Sumac

Rhus aromatica
Care: Expert Time: 15 minutes monthly (outdoor) Beginner: No

Gardeners looking for a low-maintenance, drought-tolerant shrub for erosion control, fall color, and wildlife habitat.

✅ Choose This Plant If...

  • You need a drought-tolerant ground cover for a sunny location.
  • You want a shrub with attractive fall color.
  • You want to attract birds and other wildlife to your yard.
  • You need a plant for erosion control on a slope.
  • You appreciate fragrant foliage.

❌ Skip This Plant If...

  • You need an indoor plant.
  • You have limited space in your garden.
  • You are looking for a plant that is pet-safe.
📍 Ideal Location: Outdoor garden or landscape with full sun and well-drained soil.
🎨 Style: Naturalistic, Native Plant Garden, Cottage Garden
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, Rhus species contain irritant oil which can cause gastrointestinal upset (e.g., vomiting, diarrhea), skin irritation, and/or dermatitis in dogs, cats, and horses. All parts of the plant are potentially 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

📈

Comfrey has fast growth, while Fragrant Sumac grows moderate.

💡 Pro Tips For Comparing These Plants

Comfrey Care Tips

Comfrey is an outdoor plant that is very difficult to grow indoors due to its need for full sun and its aggressive growth habit. It spreads via rhizomes and requires a large space to thrive. Indoor cultivation is not recommended due to these challenges and the plant's toxicity.

  • Plant in a location where it can spread freely.
  • Water deeply but infrequently.
  • Avoid over-fertilizing.
  • Monitor for pests and diseases.
  • Be aware of the plant's toxicity and take precautions to prevent ingestion.
❄️ Winter: Comfrey is dormant in winter. Cut back foliage after it dies back. No watering or fertilizing is needed.
☀️ Summer: Water regularly during dry periods. Monitor for pests and diseases. Provide shade during the hottest part of the day in very hot climates.

Fragrant Sumac Care Tips

Fragrant Sumac is an outdoor shrub that is not suitable for indoor growing. It requires full sun and well-drained soil. It is drought-tolerant once established. Indoor cultivation is extremely challenging due to light and space requirements.

  • Plant in well-drained soil to prevent root rot.
  • Provide full sun for best fall color.
  • Prune in late winter or early spring to maintain shape.
  • Avoid over-fertilizing.
  • Monitor for pests and diseases.
❄️ Winter: Protect young plants from harsh winter weather. Mulch around the base of the plant to insulate the roots.
☀️ Summer: Ensure adequate moisture during dry spells. Monitor for pests and diseases.

⚠️ Common Problems & Solutions — Plant Care Comparison

Comfrey

Common Issues: Powdery mildew, Rust, Slugs and snails
Solutions: Powdery mildew: Improve air circulation and apply a fungicide. | Rust: Remove infected leaves and apply a fungicide. | Slugs and snails: Use slug bait or handpick them off the plants.

Fragrant Sumac

Common Issues: Leaf spot, Gall aphids, Spider mites, Chlorosis (yellowing leaves)
Solutions: Leaf spot: Remove affected leaves and apply a fungicide. | Gall aphids: Prune infested branches. | Spider mites: Spray with insecticidal soap or horticultural oil. | Chlorosis: Check soil pH and nutrient levels; amend soil as needed.

❓ Frequently Asked Questions — Comparing These Plants

Comfrey

What are the light requirements for Comfrey?

Comfrey thrives in partial to full sunlight, requiring at least 4-6 hours of direct sunlight per day for optimal growth and flowering. However, it can also tolerate partial shade, especially in hotter climates where intense afternoon sun can scorch its leaves. When grown in full sun, ensure adequate watering to prevent the soil from drying out.

How do I care for Comfrey?

Comfrey is relatively easy to care for. Plant in a location with partial to full sunlight, although it tolerates shade. Soil should be well-draining and fertile, but Comfrey is adaptable to various soil types. Water regularly, especially during dry periods, keeping the soil consistently moist but not waterlogged. Fertilize in spring with a balanced fertilizer to promote healthy growth and flowering.

How do I propagate Comfrey?

Comfrey is easily propagated through division, stem cuttings, or root cuttings.

Fragrant Sumac

What are the light requirements for Fragrant Sumac?

Fragrant Sumac as an indoor tree requires bright, indirect light to thrive. Insufficient light can lead to leggy growth and reduced foliage density. Place your plant near an east- or west-facing window where it can receive several hours of filtered sunlight each day. Avoid direct sunlight, especially during the hottest part of the day, as it can scorch the leaves.

How do I care for Fragrant Sumac?

Fragrant Sumac thrives indoors with bright, indirect light; avoid direct sunlight which can scorch the leaves. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Use a well-draining potting mix designed for trees/shrubs. Maintain moderate humidity levels; misting occasionally can be beneficial. Fertilize sparingly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength.

How do I propagate Fragrant Sumac?

Fragrant Sumac can be propagated through stem cuttings or air layering.

Last updated: May 4, 2026 — Plant care data reviewed and verified by our editorial team.