Magnolia Grandiflora vs Perennial Pea Plant Comparison

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

Magnolia Grandiflora

Magnolia Grandiflora

Magnolia grandiflora

VS
Perennial Pea

Perennial Pea

Lathyrus latifolius

Magnolia Grandiflora

Magnolia Grandiflora

Magnolia grandiflora

Magnolia grandiflora is a large evergreen tree known for its glossy, dark green leaves and large, fragrant, creamy-white flowers. It is native to the southeastern United States and is a popular ornamental tree. It typically grows to a height of 60-80 feet, but can reach over 100 feet in optimal conditions. The tree has a pyramidal or rounded crown and a thick trunk. While prized for its beauty, it's primarily an outdoor specimen due to its size and high light requirements.

Magnoliaceae Southeastern United States
✨ Features: Large, fragrant flowers; evergreen foliage; attractive seed cones.
📖 Read Complete Magnolia Grandiflora Guide
Perennial Pea

Perennial Pea

Lathyrus latifolius

Lathyrus latifolius, commonly known as Perennial Pea, is a climbing perennial vine that can reach lengths of 6 feet or more. It features winged stems and tendrils that allow it to scramble over other plants or structures. The plant produces showy, pea-like flowers in shades of pink, rose, purple, and white during the summer months. While visually appealing, it's primarily an outdoor plant and not suited for indoor cultivation due to its need for full sun and extensive root system. People grow it for its attractive flowers and ability to cover fences or trellises.

Fabaceae Europe
✨ Features: Attractive flowers, ability to attract pollinators
📖 Read Complete Perennial Pea Guide

Quick Plant Comparison

Feature Magnolia Grandiflora Perennial Pea
Light Full sun to partial shade. Requires at least 6 hours of direct sunlight for optimal growth and flowering. Full sun (at least 6 hours of direct sunlight daily)
Watering Water deeply 1-2 times per week during the growing season, reducing frequency in winter. Every 7-10 days, depending on weather conditions
Humidity 40-60% 30-50%
Temperature 15-27°C 15-25°C
Care Level Expert Expert
Growth Rate Moderate Fast
Max Height Rarely grown indoors, outdoor height 18-24 meters (60-80 feet) N/A (Outdoor plant, not suitable for indoor growing)
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-drained, slightly acidic soil rich in organic matter. Well-drained soil, loamy or sandy soil is preferred
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 30 minutes monthly (for established trees) 30 minutes weekly during growing season

🔬 Botanical Information — Comparing These Plants

Magnolia Grandiflora

Scientific Name Magnolia grandiflora
Family Magnoliaceae
Native To Southeastern United States
Also Known As Southern Magnolia, Evergreen Magnolia, Bull Bay
Leaves Large, leathery, oblong leaves that are 5-10 inches long and 2-5 inches wide. They are dark green and glossy on the upper surface and rusty brown and pubescent on the lower surface.
Flowers Flowers are large, fragrant, and creamy-white, measuring 8-12 inches in diameter. They bloom in late spring and summer. Extremely unlikely to flower indoors.

Perennial Pea

Scientific Name Lathyrus latifolius
Family Fabaceae
Native To Europe
Also Known As Perennial Pea, Everlasting Pea, Broad-leaved Everlasting Pea
Leaves The leaves are alternate, pinnately compound with two leaflets and a terminal tendril. The leaflets are lance-shaped, 5-10 cm long, and have a bluish-green color.
Flowers The flowers are pea-like, about 2-3 cm wide, and come in shades of pink, rose, purple, and white. They are borne in clusters on long stalks during the summer months. It will not flower indoors.

📏 Size & Growth — Plant Comparison

Magnolia Grandiflora

Height Rarely grown indoors, outdoor height 18-24 meters (60-80 feet)
Spread Outdoor spread 6-12 meters (20-40 feet)
Growth Rate Moderate
Growth Pattern Upright, pyramidal or rounded crown. It grows into a large tree with a thick trunk and sturdy branches.

Perennial Pea

Height N/A (Outdoor plant, not suitable for indoor growing)
Spread Spreads via rhizomes and seeds, can be aggressive
Growth Rate Fast
Growth Pattern Climbing vine that uses tendrils to attach to supports. It can grow several feet in a single season and spreads both by seed and rhizomes.

🌱 Propagation — Comparing Plant Growth

Magnolia Grandiflora

Methods: Seed, stem cuttings, air layering

Difficulty: Moderate

Tips: For stem cuttings, take semi-hardwood cuttings in late summer. Use rooting hormone and keep the cuttings in a humid environment. Seed propagation requires scarification and stratification.

Perennial Pea

Methods: Seed, Division, Root cuttings

Difficulty: Easy

Tips: Soak seeds in warm water for 24 hours before planting to improve germination. Divide established plants in spring or fall. Root cuttings can be taken in late fall or early spring.

✨ Benefits & Features — Comparing Plant Value

Magnolia Grandiflora

Magnolia grandiflora is unique for its large, fragrant flowers and glossy, evergreen foliage. Its seed cones are also quite attractive. The combination of these features makes it a highly desirable ornamental tree.

  • ✓ Provides shade and privacy
  • ✓ Adds beauty and fragrance to the landscape
  • ✓ Attracts pollinators
  • ✓ Provides habitat for birds and other wildlife
  • ✓ Increases property value
  • ⚠️ Toxic to pets

Perennial Pea

The Perennial Pea is a long-lived perennial vine with showy flowers. Unlike some other pea species, it does not produce edible pods.

  • ✓ Attracts pollinators like bees and butterflies.
  • ✓ Provides beautiful vertical interest in the garden.
  • ✓ Relatively low maintenance once established.
  • ✓ Can help to stabilize soil on slopes.
  • ✓ Offers a long blooming period throughout the summer.
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Magnolia Grandiflora

Repotting Not applicable for outdoor trees. Container-grown specimens (not recommended) would require frequent repotting.
Pruning Prune in late winter or early spring to remove dead or damaged branches and to shape the tree. Avoid heavy pruning, as it can stimulate excessive growth.
Fertilizing Use a balanced fertilizer (10-10-10) in early spring and late summer. Apply according to package instructions.
Seasonal Care In winter, protect young trees from frost damage. In summer, ensure adequate watering during dry periods. Mulch around the base of the tree to retain moisture and suppress weeds.

Perennial Pea

Repotting N/A (Outdoor plant)
Pruning Prune regularly to control spread and remove dead or damaged foliage. Cut back hard in fall after flowering.
Fertilizing Balanced fertilizer (10-10-10) in spring, diluted to half strength. Avoid over-fertilizing.
Seasonal Care In spring, fertilize and provide support for climbing. In summer, water regularly and deadhead spent flowers. In fall, cut back foliage after flowering. In winter, allow the plant to rest.

🌞 Light Requirements

Magnolia Grandiflora

Full sun to partial shade. Requires at least 6 hours of direct sunlight for optimal growth and flowering.

Low light tolerant: ❌ No

Perennial Pea

Full sun (at least 6 hours of direct sunlight daily)

Low light tolerant: ❌ No

💧 Watering Needs

Magnolia Grandiflora

Water deeply and regularly, especially during the first few years after planting. Once established, it is relatively drought-tolerant. Overwatering can lead to root rot, so ensure good drainage. Signs of underwatering include wilting and leaf drop. Signs of overwatering include yellowing leaves and soggy soil.

Perennial Pea

Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. During hot, dry periods, more frequent watering may be necessary. Allow the soil to drain well after watering.

🌡️ Temperature & Humidity

Magnolia Grandiflora

Temperature: 15-27°C

Humidity: 40-60%

Perennial Pea

Temperature: 15-25°C

Humidity: 30-50%

🤔 Which Plant Is Right For You?

Magnolia Grandiflora

Magnolia Grandiflora

Magnolia grandiflora
Care: Expert Time: 30 minutes monthly (for established trees) Beginner: No

Gardeners with large outdoor spaces who desire a beautiful, fragrant, and stately tree.

✅ Choose This Plant If...

  • You have a large outdoor space and desire a beautiful, fragrant shade tree.
  • You live in a warm climate where Magnolia grandiflora thrives.
  • You appreciate the classic Southern charm and elegance of this tree.
  • You want to attract pollinators to your garden with its large, fragrant flowers.
  • You are willing to provide the necessary care and maintenance to keep the tree healthy and thriving.

❌ Skip This Plant If...

  • You have limited space, as this tree grows very large.
  • You live in a cold climate with harsh winters.
  • You have pets, as all parts of the plant are toxic to them.
📍 Ideal Location: Outdoors in a sunny or partially shaded location with well-drained soil.
🎨 Style: Traditional, Southern, Formal
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, Magnolia grandiflora is toxic to dogs, cats, and horses. The toxic principle is unknown. Symptoms include vomiting, depression, and diarrhea. All parts of the plant are considered toxic.
Perennial Pea

Perennial Pea

Lathyrus latifolius
Care: Expert Time: 30 minutes weekly during growing season Beginner: No

Gardeners looking for a flowering vine to cover fences, trellises, or walls in a sunny location.

✅ Choose This Plant If...

  • You want a fast-growing vine to cover a fence or trellis.
  • You have a sunny garden and want to attract pollinators.
  • You enjoy the look of pea-like flowers in various colors.
  • You are looking for a low-maintenance perennial once established.
  • You want a plant that can tolerate a wide range of soil conditions.

❌ Skip This Plant If...

  • You have pets or small children who might ingest the plant.
  • You have a small garden and are concerned about aggressive spreading.
  • You are looking for an indoor plant.
  • You don't have a location with full sun.
  • You are sensitive to plants that may cause skin irritation.
📍 Ideal Location: Outdoor garden, fence, trellis, or wall in a sunny location.
🎨 Style: Cottage, Traditional, Romantic
🏠 Apartment Friendly: No
⚠️ The seeds of Lathyrus species contain lathyrogens, which are toxic to animals including dogs, cats, and horses. Symptoms include neurological issues, weakness, and paralysis. All parts of the plant should be considered 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

📈

Magnolia Grandiflora has moderate growth, while Perennial Pea grows fast.

💡 Pro Tips For Comparing These Plants

Magnolia Grandiflora Care Tips

Magnolia grandiflora is primarily an outdoor tree and is extremely challenging to grow indoors due to its size, high light requirements, and need for specific humidity and temperature conditions. It requires expert care and is not suitable for most indoor environments.

  • Water deeply and regularly, especially during the first few years after planting.
  • Mulch around the base of the tree to retain moisture and suppress weeds.
  • Fertilize in early spring and late summer with a balanced fertilizer.
  • Prune in late winter or early spring to remove dead or damaged branches.
  • Protect young trees from frost damage in winter.
❄️ Winter: Protect young trees from frost damage with burlap or tree wrap. Reduce watering frequency.
☀️ Summer: Ensure adequate watering during dry periods. Mulch around the base of the tree to retain moisture and suppress weeds.

Perennial Pea Care Tips

Perennial Pea is an outdoor plant that requires full sun and well-drained soil. It is not suitable for indoor growing due to its light and space requirements. It can be an aggressive spreader, so containment may be necessary. Toxicity to pets is a significant concern.

  • Provide a sturdy support structure for the vine to climb.
  • Deadhead spent flowers to encourage continued blooming.
  • Monitor for signs of powdery mildew and treat promptly.
  • Control spread by pruning and removing unwanted seedlings.
  • Avoid planting near areas where pets or children have access.
❄️ Winter: Cut back the foliage to the ground in late fall or early winter. The plant will go dormant and re-emerge in the spring.
☀️ Summer: Water regularly during dry periods. Deadhead spent flowers to encourage continued blooming. Monitor for pests and diseases.

⚠️ Common Problems & Solutions — Plant Care Comparison

Magnolia Grandiflora

Common Issues: Leaf spot, scale, nutrient deficiencies, chlorosis (yellowing of leaves due to iron deficiency)
Solutions: Treat leaf spot with a fungicide. Control scale with horticultural oil or insecticidal soap. Address nutrient deficiencies with appropriate fertilizer. Correct chlorosis by amending the soil with iron chelate.

Perennial Pea

Common Issues: Powdery mildew, Aphids, Overgrowth
Solutions: Powdery mildew: Improve air circulation and apply fungicide. Aphids: Insecticidal soap or neem oil. Overgrowth: Prune regularly to control spread.

❓ Frequently Asked Questions — Comparing These Plants

Magnolia Grandiflora

What are the light requirements for Magnolia Grandiflora?

Magnolia Grandiflora requires bright, indirect light to flourish indoors. Insufficient light can lead to leggy growth, reduced flowering, and overall weakened health. An east-facing window is often ideal, providing gentle morning sunlight. A south- or west-facing window can also work, but be sure to filter the light with sheer curtains to prevent leaf scorch, especially during the hottest parts of the day. If natural light is limited, supplement with grow lights. Position the grow lights about 12-18 inches above the plant, providing 12-14 hours of light per day. Rotate the plant regularly to ensure all sides receive adequate light exposure. Monitor the leaves for signs of insufficient light, such as pale color or elongated stems. Adjust the plant’s position or supplement with additional light as needed to maintain optimal growth.

How do I care for Magnolia Grandiflora?

Magnolia Grandiflora, when grown indoors, requires specific attention to thrive. Plant in a large, well-draining pot using an acidic potting mix. Ensure the pot has drainage holes to prevent root rot. Provide bright, indirect light for at least 6 hours daily. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain away. Maintain high humidity levels by misting regularly or using a humidifier. Fertilize monthly during the growing season (spring and summer) with a balanced, slow-release fertilizer formulated for acid-loving plants. Prune lightly in late winter or early spring to maintain shape and remove any dead or damaged branches. Repot every 2-3 years as needed, increasing the pot size each time. Keep the plant away from drafts and sudden temperature changes. Monitor for pests such as spider mites and scale, and treat promptly if detected. Consistent care and stable conditions are crucial for the health and well-being of your indoor Magnolia Grandiflora.

How do I propagate Magnolia Grandiflora?

Magnolia Grandiflora can be propagated through stem cuttings or air layering, though success rates can vary. For stem cuttings, take a 4-6 inch semi-hardwood cutting from a healthy plant in late spring or early summer. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cutting in a well-draining potting mix and keep it consistently moist. Cover with a plastic bag to maintain humidity. Rooting can take several weeks. For air layering, select a healthy stem and make a shallow cut about halfway through. Wrap the cut area with moist sphagnum moss and cover with plastic wrap, securing it tightly with tape. Keep the moss moist. Roots should form within a few months. Once roots are visible, carefully cut the stem below the rooted area and plant it in a pot. Provide bright, indirect light and consistent moisture. Both methods require patience and careful attention to humidity and moisture levels.

Perennial Pea

What are the light requirements for Perennial Pea?

Perennial Pea requires at least 6-8 hours of direct sunlight per day to thrive and produce abundant blooms. A south-facing location is ideal, but east or west-facing exposures can also work if they provide sufficient sunlight. In hotter climates, some afternoon shade can be beneficial to prevent scorching of the leaves and flowers. Insufficient light can lead to leggy growth, reduced flowering, and pale foliage. If growing indoors, supplement with grow lights if natural light is limited. Rotate the plant regularly to ensure even light exposure on all sides. Monitor your Perennial Pea closely and adjust its location as needed to ensure it receives adequate sunlight.

How do I care for Perennial Pea?

Perennial Pea thrives in full sun to partial shade and requires well-drained soil. Water regularly, especially during dry periods, but avoid overwatering, which can lead to root rot. Fertilize in spring with a balanced fertilizer to promote healthy growth and abundant blooms. Deadhead spent flowers to encourage continued flowering throughout the season. Provide a sturdy support structure, such as a trellis or fence, for the plant to climb. Prune back in late fall or early spring to control its size and shape. Watch out for common pests like aphids and spider mites, and treat infestations promptly. Mulch around the base of the plant to retain moisture and suppress weeds. Regular monitoring and preventative measures are key to keeping your Perennial Pea healthy and vibrant.

How do I propagate Perennial Pea?

Perennial Pea can be propagated by seed, division, or stem cuttings. For seed propagation, scarify the seeds and soak them in water for 24 hours before planting. Sow seeds indoors in early spring or directly outdoors after the last frost. For division, carefully dig up a mature plant in early spring or late fall and divide the root ball into smaller sections, each with its own set of roots and shoots. Replant the divisions in well-draining soil. For stem cuttings, take 4-6 inch cuttings from healthy stems in late spring or early summer. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cuttings in a well-draining potting mix and keep them moist until they root.

Last updated: May 1, 2026 — Plant care data reviewed and verified by our editorial team.