Linden Tree vs Pickerel Weed Plant Comparison

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

Linden Tree

Linden Tree

Tilia spp.

VS
Pickerel Weed

Pickerel Weed

Pontederia cordata

Linden Tree

Linden Tree

Tilia spp.

Linden trees are deciduous trees known for their heart-shaped leaves, fragrant flowers, and medicinal properties. They are typically large trees, reaching heights of 20-40 meters (65-130 feet) in the wild. Linden trees are primarily outdoor trees, valued for their shade, ornamental appeal, and the honey produced from their flowers. They are not typically grown indoors due to their size and need for specific environmental conditions. People grow them for their beauty, shade, and the fragrant flowers used in herbal teas.

Malvaceae Temperate regions of the Northern Hemisphere, including Europe, Asia, and North America
✨ Features: Fragrant flowers attract pollinators, medicinal properties in flowers and bark, provides shade.
📖 Read Complete Linden Tree Guide
Pickerel Weed

Pickerel Weed

Pontederia cordata

Pickerelweed is an aquatic perennial herb typically found in shallow water habitats like ponds, marshes, and streams. It features distinctive heart-shaped leaves and a prominent flower spike that blooms in summer. The plant grows from rhizomes, forming dense colonies. While primarily an outdoor plant, it is occasionally grown in large water gardens or aquariums. It is valued for its attractive foliage and flowers, which attract pollinators and provide habitat for aquatic wildlife.

Pontederiaceae North America, South America
✨ Features: Attracts pollinators, provides habitat for aquatic wildlife, helps filter water.
📖 Read Complete Pickerel Weed Guide

Quick Plant Comparison

Feature Linden Tree Pickerel Weed
Light Full sun to partial shade Full sun to partial shade
Watering Once or twice a week during the growing season, less frequently in winter. Daily to maintain water levels
Humidity 30-50% 60-90%
Temperature 10-25°C 15-27°C
Care Level Expert Expert
Growth Rate Moderate Fast
Max Height Not applicable for indoor growing. Outdoor: 20-40 meters (65-130 feet) 0.3-1 meter (outdoor, less in containers)
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining soil, loamy or sandy loam is best Heavy clay soil or aquatic planting mix
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 1-2 hours per month for pruning, fertilizing, and pest control. 30 minutes weekly (including algae control, pruning, and water level maintenance)

🔬 Botanical Information — Comparing These Plants

Linden Tree

Scientific Name Tilia spp.
Family Malvaceae
Native To Temperate regions of the Northern Hemisphere, including Europe, Asia, and North America
Also Known As Linden, Basswood, Lime Tree
Leaves The leaves of linden trees are heart-shaped, typically 5-15 cm (2-6 inches) long and wide. They are dark green in summer, turning yellow in the fall. The leaf margins are serrated.
Flowers Linden trees produce fragrant, yellowish-white flowers in late spring or early summer. The flowers are small and hang in clusters from a leafy bract. They are highly attractive to bees and other pollinators. Flowering does not occur indoors.

Pickerel Weed

Scientific Name Pontederia cordata
Family Pontederiaceae
Native To North America, South America
Also Known As Pickerelweed, Pickerel Weed, Heartleaf Pickerelweed
Leaves Heart-shaped (cordate) leaves, typically 10-25 cm long and 5-15 cm wide. The leaves are smooth, glossy green, and have prominent veins. They are attached to long petioles that emerge from the rhizomes.
Flowers Produces a dense spike of small, violet-blue flowers in summer. The flowers are about 1 cm long and have six petals. They are arranged spirally around the spike and bloom sequentially from the bottom up. Rarely flowers indoors.

📏 Size & Growth — Plant Comparison

Linden Tree

Height Not applicable for indoor growing. Outdoor: 20-40 meters (65-130 feet)
Spread Not applicable for indoor growing. Outdoor: 10-20 meters (33-65 feet)
Growth Rate Moderate
Growth Pattern Linden trees have an upright, pyramidal growth habit when young, becoming more rounded and spreading with age. They develop a strong central trunk and well-branched canopy.

Pickerel Weed

Height 0.3-1 meter (outdoor, less in containers)
Spread 0.3-0.6 meters (spreads via rhizomes)
Growth Rate Fast
Growth Pattern Upright, emergent aquatic plant that grows from rhizomes, forming dense colonies in shallow water. It sends up stalks with heart-shaped leaves and flower spikes.

🌱 Propagation — Comparing Plant Growth

Linden Tree

Methods: Seed, cuttings, grafting

Difficulty: Moderate

Tips: Collect seeds in the fall and stratify them over winter. Take softwood cuttings in late spring or early summer.

Pickerel Weed

Methods: Division of rhizomes, Seed

Difficulty: Easy

Tips: Divide rhizomes in spring or early summer. Ensure each division has healthy roots and shoots. Plant in aquatic soil and keep submerged in water. Seeds can be sown in shallow water in spring.

✨ Benefits & Features — Comparing Plant Value

Linden Tree

Linden trees are known for their fragrant flowers and heart-shaped leaves. They are also valued for their medicinal properties and the honey produced from their flowers. The flowers are highly attractive to bees.

  • ✓ Provides shade in the summer
  • ✓ Fragrant flowers attract pollinators
  • ✓ Flowers can be used to make calming tea
  • ✓ Adds beauty and elegance to a landscape
  • ✓ Provides habitat for wildlife
  • ⚠️ Toxic to pets

Pickerel Weed

Pickerelweed is a native aquatic plant that provides important habitat and food sources for wildlife. Its distinctive heart-shaped leaves and purple flower spikes make it an attractive addition to water gardens. It is also known for its ability to help filter and oxygenate water.

  • ✓ Provides habitat for aquatic wildlife
  • ✓ Attracts pollinators such as bees and butterflies
  • ✓ Helps to filter and oxygenate water in ponds and aquariums
  • ✓ Adds visual interest with its unique foliage and flowers
  • ✓ Contributes to a natural and balanced ecosystem in aquatic environments
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Linden Tree

Repotting Not applicable for trees planted in the ground.
Pruning Prune to remove dead or damaged branches and to shape the tree. Avoid heavy pruning, which can stress the tree.
Fertilizing Balanced fertilizer (10-10-10) in spring
Seasonal Care Water regularly during the growing season (spring and summer). Protect young trees from frost in winter. Prune in late winter or early spring before new growth begins.

Pickerel Weed

Repotting Divide and replant every 1-2 years to control spread and maintain vigor.
Pruning Remove dead or yellowing leaves regularly. Trim back excessive growth to control spread.
Fertilizing Aquatic plant fertilizer tablets or slow-release fertilizer formulated for aquatic plants, applied according to package instructions during the growing season (spring/summer).
Seasonal Care In winter, cut back dead foliage. In colder climates, rhizomes may need protection from freezing. In summer, ensure adequate water levels and sunlight.

🌞 Light Requirements

Linden Tree

Full sun to partial shade

Low light tolerant: ❌ No

Pickerel Weed

Full sun to partial shade

Low light tolerant: ❌ No

💧 Watering Needs

Linden Tree

Water deeply when the topsoil feels dry to the touch. Avoid overwatering, which can lead to root rot. Established trees are relatively drought-tolerant. Signs of underwatering include wilting leaves and dry soil. Overwatering can cause yellowing leaves and soggy soil.

Pickerel Weed

Requires consistently moist to wet conditions. If grown in a container, ensure the pot is sitting in a tray of water or submerged in a larger water feature. Overwatering is not a concern as it is an aquatic plant. Underwatering will cause the leaves to wilt and brown.

🌡️ Temperature & Humidity

Linden Tree

Temperature: 10-25°C

Humidity: 30-50%

Pickerel Weed

Temperature: 15-27°C

Humidity: 60-90%

🤔 Which Plant Is Right For You?

Linden Tree

Linden Tree

Tilia spp.
Care: Expert Time: 1-2 hours per month for pruning, fertilizing, and pest control. Beginner: No

Gardeners with large outdoor spaces who want a shade tree and enjoy fragrant flowers.

✅ Choose This Plant If...

  • You have a large outdoor space and want a shade tree.
  • You appreciate fragrant flowers that attract pollinators.
  • You are interested in the medicinal properties of linden flowers.
  • You want a tree with a classic, elegant appearance.
  • You are willing to provide the necessary outdoor care and maintenance.

❌ Skip This Plant If...

  • You have limited space and want an indoor plant.
  • You are looking for a low-maintenance plant.
  • You have pets that might ingest the plant.
  • You live in a climate unsuitable for linden trees.
📍 Ideal Location: Outdoors in a large garden or park.
🎨 Style: Traditional, Cottage, Natural
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, Tilia species contain tremorgenic glycosides which are toxic to horses, causing incoordination, tremors, and seizures. Toxicity data for dogs and cats is less clear, but due to the potential presence of these glycosides, it is best to assume toxicity and prevent ingestion.
Pickerel Weed

Pickerel Weed

Pontederia cordata
Care: Expert Time: 30 minutes weekly (including algae control, pruning, and water level maintenance) Beginner: No

Experienced gardeners with ponds, water gardens, or large aquariums who want to add a native aquatic plant.

✅ Choose This Plant If...

  • You have a pond or water garden and want a native plant.
  • You want to attract pollinators and wildlife to your water feature.
  • You need a plant that can tolerate consistently wet conditions.
  • You appreciate the unique heart-shaped foliage and flower spikes.
  • You are an experienced gardener looking for a rewarding aquatic plant challenge.

❌ Skip This Plant If...

  • You do not have a suitable aquatic environment (pond, water garden, large aquarium).
  • You are looking for a low-maintenance indoor plant.
  • You have pets that might ingest the plant, as it is toxic to them.
📍 Ideal Location: Outdoor pond, water garden, or large aquarium.
🎨 Style: Naturalistic, Cottagecore, Wild Garden
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, Pickerel Weed contains calcium oxalates, which are toxic to dogs, cats, and horses. Symptoms include oral irritation, excessive drooling, vomiting, and difficulty swallowing.

🎯 Quick Verdict

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

⚡ Key Differences Between These Plants

📈

Linden Tree has moderate growth, while Pickerel Weed grows fast.

💡 Pro Tips For Comparing These Plants

Linden Tree Care Tips

Linden trees are not suitable for indoor growing due to their large size and need for full sun. Attempting to grow them indoors will likely result in a stressed and unhealthy plant. They require significant outdoor space and specific climate conditions.

  • Plant in well-draining soil in a sunny location.
  • Water deeply during dry periods, especially when the tree is young.
  • Fertilize in spring with a balanced fertilizer.
  • Prune in late winter or early spring to remove dead or damaged branches.
  • Monitor for pests and diseases and treat promptly.
❄️ Winter: Protect young trees from frost and wind. Water sparingly during dormancy. Avoid fertilizing in winter.
☀️ Summer: Water deeply during dry periods. Monitor for pests and diseases. Provide shade for young trees during the hottest part of the day.

Pickerel Weed Care Tips

Pickerelweed is best suited for outdoor water gardens or large aquariums. It requires full sun and consistently wet conditions. Indoor cultivation is challenging due to the need for specialized aquatic environments and intense lighting. It is an aggressive spreader and needs containment.

  • Ensure consistent water levels, especially during hot weather.
  • Provide full sun for optimal flowering.
  • Use aquatic plant fertilizer to promote healthy growth.
  • Control algae growth to prevent it from smothering the plant.
  • Protect rhizomes from freezing in colder climates.
❄️ Winter: Cut back dead foliage. In colder climates, protect rhizomes from freezing by moving them to a deeper part of the pond or covering them with mulch.
☀️ Summer: Ensure adequate water levels, especially during hot weather. Provide full sun for optimal flowering. Monitor for pests and diseases.

⚠️ Common Problems & Solutions — Plant Care Comparison

Linden Tree

Common Issues: Aphids, Japanese beetles, powdery mildew, verticillium wilt
Solutions: Use insecticidal soap for aphids and Japanese beetles. Apply fungicide for powdery mildew. Ensure good air circulation to prevent fungal diseases. Verticillium wilt is difficult to treat; remove affected branches.

Pickerel Weed

Common Issues: Algae growth, Nutrient deficiencies, Aphids, Root rot (if water quality is poor)
Solutions: Control algae with appropriate algaecides or by improving water circulation. Supplement with aquatic plant fertilizer. Treat aphids with insecticidal soap. Ensure good water quality to prevent root rot.

❓ Frequently Asked Questions — Comparing These Plants

Linden Tree

What are the light requirements for Linden Tree?

Linden trees require bright, indirect light to flourish indoors. An east-facing window that provides morning sunlight is ideal. A south-facing window can also work if you diffuse the light with a sheer curtain to prevent leaf burn. Insufficient light can lead to leggy growth and reduced leaf production.

How do I care for Linden Tree?

Linden trees thrive indoors with proper care. Provide bright, indirect light, avoiding direct sunlight which can scorch the leaves. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Maintain moderate humidity levels, especially during dry winter months, by misting regularly or using a humidifier.

How do I propagate Linden Tree?

Linden trees can be propagated using stem cuttings or air layering.

Pickerel Weed

What are the light requirements for Pickerel Weed?

Pickerel Weed thrives best in full sun, requiring at least six hours of direct sunlight daily. However, it can also tolerate partial shade, especially during the hottest part of the day. Insufficient light can lead to leggy growth, reduced flowering, and overall weaker plants.

How do I care for Pickerel Weed?

Pickerel Weed thrives in shallow water or moist soil. Plant in a pond, water garden, or a container submerged in water. Full sun to partial shade is ideal. Ensure the water is clean and well-oxygenated. Add aquatic plant fertilizer sparingly during the growing season (spring and summer). Remove dead leaves and flowers regularly.

How do I propagate Pickerel Weed?

Pickerel Weed can be easily propagated through division or cuttings.

Last updated: April 25, 2026 — Plant care data reviewed and verified by our editorial team.