Flowering Cherry vs Sweet Pea Plant Comparison

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

Flowering Cherry

Flowering Cherry

Prunus serrulata

VS
Sweet Pea

Sweet Pea

Lathyrus odoratus

Flowering Cherry

Flowering Cherry

Prunus serrulata

Prunus serrulata, commonly known as Japanese Flowering Cherry, is a deciduous tree prized for its spectacular spring blossoms. Typically grown outdoors, it features a rounded crown and can reach heights of 15-25 feet. The main attraction is its profusion of pink or white flowers that appear before or during leaf emergence. While beautiful, it is not suited for indoor cultivation due to its size, light requirements, and dormancy needs. People grow it for its ornamental value and the beauty it brings to landscapes during the flowering season.

Rosaceae Japan, Korea, China
✨ Features: Spectacular spring blossoms, ornamental value
📖 Read Complete Flowering Cherry Guide
Sweet Pea

Sweet Pea

Lathyrus odoratus

Sweet peas are annual climbing plants, known for their beautiful, fragrant flowers. They are not naturally indoor plants and are typically grown outdoors in gardens. They feature delicate, papery petals in a wide range of colors, including pink, purple, red, white, and bi-colors. Sweet peas climb using tendrils, reaching heights of 1 to 2 meters. People grow them for their ornamental value, the delightful fragrance of their blooms, and their use as cut flowers.

Fabaceae Sicily, Cyprus, Southern Italy, and the Aegean Islands
✨ Features: Highly fragrant flowers, attractive to pollinators.
📖 Read Complete Sweet Pea Guide

Quick Plant Comparison

Feature Flowering Cherry Sweet Pea
Light Full sun (at least 6 hours of direct sunlight daily) Full sun (at least 6-8 hours of direct sunlight per day)
Watering Weekly during the growing season, less frequently during dormancy Every 2-3 days outdoors, depending on weather conditions. Less frequent if grown indoors.
Humidity 30-50% 40-60%
Temperature 10-24°C 13-18°C
Care Level Expert Expert
Growth Rate Moderate Fast
Max Height N/A (Outdoor tree, not suitable for indoor growing) 1-2 meters (outdoors). Significantly smaller if grown indoors.
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining loamy soil Well-draining, fertile soil rich in organic matter. A mix of garden soil, compost, and perlite is suitable.
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 30 minutes monthly (pruning, fertilizing, pest control) 30 minutes weekly

🔬 Botanical Information — Comparing These Plants

Flowering Cherry

Scientific Name Prunus serrulata
Family Rosaceae
Native To Japan, Korea, China
Also Known As Japanese Flowering Cherry, Hill Cherry, Oriental Cherry
Leaves The leaves are ovate to lanceolate in shape, typically 5-12 cm long and 2.5-5 cm wide. They are serrated along the edges and have a glossy green color. In the fall, the leaves may turn yellow or reddish-bronze before dropping.
Flowers Flowering cherries rarely, if ever, flower indoors. Outdoors, they produce abundant clusters of pink or white flowers in spring before or as the leaves emerge. The flowers are typically 2-4 cm in diameter and have a delicate, sweet fragrance.

Sweet Pea

Scientific Name Lathyrus odoratus
Family Fabaceae
Native To Sicily, Cyprus, Southern Italy, and the Aegean Islands
Also Known As Sweet Pea
Leaves The leaves are ovate to lanceolate, with a bluish-green color. They are arranged alternately along the stem and have prominent veins. The plant also produces tendrils that aid in climbing.
Flowers Sweet peas produce fragrant, papery flowers in a wide range of colors, including pink, purple, red, white, and bi-colors. They bloom profusely outdoors during the summer months. Flowering is rare and limited indoors.

📏 Size & Growth — Plant Comparison

Flowering Cherry

Height N/A (Outdoor tree, not suitable for indoor growing)
Spread N/A (Outdoor tree, not suitable for indoor growing)
Growth Rate Moderate
Growth Pattern This tree exhibits an upright, spreading growth habit, forming a rounded crown as it matures. It is a deciduous tree, losing its leaves in the fall and entering a period of dormancy during the winter months.

Sweet Pea

Height 1-2 meters (outdoors). Significantly smaller if grown indoors.
Spread 30-60 cm
Growth Rate Fast
Growth Pattern Sweet peas are climbing annuals that use tendrils to attach to supports. They grow vertically, reaching heights of 1 to 2 meters outdoors. Indoors, growth is typically more constrained.

🌱 Propagation — Comparing Plant Growth

Flowering Cherry

Methods: Grafting, Budding, Seed (though not recommended as it doesn't breed true)

Difficulty: Difficult

Tips: Grafting is the most reliable method, typically done in late winter or early spring. Use a compatible rootstock.

Sweet Pea

Methods: Seed

Difficulty: Easy

Tips: Soak seeds in water for 24 hours before sowing to improve germination. Sow directly into the ground or in pots in early spring.

✨ Benefits & Features — Comparing Plant Value

Flowering Cherry

The Japanese Flowering Cherry is known for its profusion of delicate pink or white blossoms in the spring. Its ornamental value and cultural significance make it a popular choice for gardens and landscapes. The bark also provides winter interest.

  • ✓ Provides stunning visual appeal in spring
  • ✓ Attracts pollinators to the garden
  • ✓ Offers shade in the summer
  • ✓ Adds cultural significance to the landscape
  • ✓ Increases property value
  • ⚠️ Toxic to pets

Sweet Pea

Sweet peas are known for their intense fragrance and wide range of colors. Their climbing habit and delicate petals make them a popular choice for cottage gardens and cut flower arrangements.

  • ✓ Beautiful and fragrant flowers
  • ✓ Attracts pollinators to the garden
  • ✓ Provides cut flowers for bouquets
  • ✓ Adds a touch of romance to the garden
  • ✓ Can be grown in a variety of colors
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Flowering Cherry

Repotting N/A (Outdoor tree)
Pruning Prune in late winter or early spring to remove dead, damaged, or crossing branches. Shape the tree as needed.
Fertilizing Balanced fertilizer (10-10-10) in early spring before flowering
Seasonal Care In spring, fertilize before flowering. In summer, monitor for pests and water regularly. In fall, prune dead or diseased branches. In winter, provide protection from extreme cold.

Sweet Pea

Repotting Not applicable as it's an annual. If grown indoors, repotting may be needed if the container is too small.
Pruning Pinch off the tips of young plants to encourage bushier growth. Deadhead spent flowers to promote continued blooming.
Fertilizing Balanced liquid fertilizer (10-10-10) diluted to half strength, every 2-3 weeks during the growing season.
Seasonal Care In spring, sow seeds and provide support for climbing. In summer, water regularly and fertilize. In fall, collect seeds for next year. In winter, the plant dies back as it is an annual.

🌞 Light Requirements

Flowering Cherry

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

Low light tolerant: ❌ No

Sweet Pea

Full sun (at least 6-8 hours of direct sunlight per day)

Low light tolerant: ❌ No

💧 Watering Needs

Flowering Cherry

Water deeply when the topsoil feels dry to the touch, especially during the growing season. Avoid overwatering, which can lead to root rot. Signs of underwatering include wilting leaves and dry soil. Overwatering signs include yellowing leaves and soggy soil.

Sweet Pea

Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Ensure good drainage. Underwatering will cause wilting and reduced flowering.

🌡️ Temperature & Humidity

Flowering Cherry

Temperature: 10-24°C

Humidity: 30-50%

Sweet Pea

Temperature: 13-18°C

Humidity: 40-60%

🤔 Which Plant Is Right For You?

Flowering Cherry

Flowering Cherry

Prunus serrulata
Care: Expert Time: 30 minutes monthly (pruning, fertilizing, pest control) Beginner: No

Gardeners with ample outdoor space who appreciate ornamental flowering trees.

✅ Choose This Plant If...

  • You want a stunning display of pink or white flowers in the spring.
  • You have ample outdoor space and full sun available.
  • You appreciate the cultural significance of cherry blossoms.
  • You are willing to provide the necessary care and maintenance for an outdoor tree.
  • You want to attract pollinators to your garden.

❌ Skip This Plant If...

  • You live in an apartment or have limited outdoor space.
  • You are looking for an indoor plant.
  • You have pets that may ingest the plant.
  • You are not prepared to provide the necessary care for an outdoor tree.
📍 Ideal Location: Outdoor garden or landscape with full sun exposure
🎨 Style: Traditional, Cottage, Japanese
🏠 Apartment Friendly: No
⚠️ All parts of the plant, especially the stems, leaves, and seeds, contain cyanogenic glycosides, which can release cyanide when ingested. Toxic to dogs, cats, and horses. Symptoms include dilated pupils, difficulty breathing, and bright red mucous membranes.
Sweet Pea

Sweet Pea

Lathyrus odoratus
Care: Expert Time: 30 minutes weekly Beginner: No

Experienced gardeners who want to grow fragrant flowers outdoors.

✅ Choose This Plant If...

  • You love fragrant flowers and have a sunny outdoor garden.
  • You enjoy growing cut flowers for bouquets.
  • You want to attract pollinators to your garden.
  • You are an experienced gardener looking for a rewarding challenge.
  • You appreciate the wide variety of colors and forms available in sweet pea cultivars.

❌ Skip This Plant If...

  • You have pets that might ingest the plant.
  • You lack a sunny outdoor space.
  • You are a beginner gardener looking for an easy-to-grow plant.
📍 Ideal Location: Sunny garden or balcony with support for climbing.
🎨 Style: Cottage, Romantic, Traditional
🏠 Apartment Friendly: Limited
⚠️ All parts of the sweet pea plant, especially the seeds, are toxic to dogs, cats, and horses. Symptoms include weakness, tremors, and seizures. Consult a veterinarian immediately if ingestion is suspected.

🎯 Quick Verdict

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

⚡ Key Differences Between These Plants

☀️

Flowering Cherry needs full sun (at least 6 hours of direct sunlight daily), while Sweet Pea prefers full sun (at least 6-8 hours of direct sunlight per day).

📈

Flowering Cherry has moderate growth, while Sweet Pea grows fast.

💡 Pro Tips For Comparing These Plants

Flowering Cherry Care Tips

Japanese Flowering Cherry is an outdoor tree and is not suitable for indoor cultivation. It requires full sun, well-draining soil, and a period of winter dormancy. Indoor attempts will likely fail due to insufficient light, space, and the inability to replicate natural seasonal changes.

  • Plant in well-draining soil to prevent root rot.
  • Water deeply but infrequently, allowing the soil to dry out slightly between waterings.
  • Fertilize in early spring before flowering with a balanced fertilizer.
  • Prune annually to remove dead or diseased branches and maintain shape.
  • Monitor for pests and diseases and treat promptly.
❄️ Winter: Protect young trees from harsh winter winds and extreme cold. Mulch around the base of the tree to insulate the roots. Avoid pruning during the coldest months.
☀️ Summer: Water regularly during dry spells. Monitor for pests and diseases and treat promptly. Provide shade during periods of intense heat to prevent leaf scorch.

Sweet Pea Care Tips

Sweet peas are challenging to grow indoors due to their high light requirements and need for cool temperatures. They require consistent watering, fertilization, and support for climbing. Without ideal conditions, flowering will be limited.

  • Soak seeds overnight before planting to improve germination.
  • Provide a sturdy trellis or support for climbing.
  • Deadhead spent flowers regularly to encourage more blooms.
  • Fertilize every 2-3 weeks during the growing season.
  • Protect from strong winds.
❄️ Winter: As an annual, the plant will die back in winter. Collect seeds for planting the following spring.
☀️ Summer: Provide regular watering and fertilization during the growing season. Protect from intense afternoon sun in hot climates. Deadhead spent flowers to encourage continued blooming.

⚠️ Common Problems & Solutions — Plant Care Comparison

Flowering Cherry

Common Issues: Aphids, spider mites, bacterial canker, root rot
Solutions: Treat aphids and spider mites with insecticidal soap. Prune out infected branches to prevent bacterial canker. Ensure proper drainage to avoid root rot.

Sweet Pea

Common Issues: Powdery mildew, aphids, lack of flowering, root rot
Solutions: Powdery mildew: Improve air circulation and apply a fungicide. Aphids: Spray with insecticidal soap. Lack of flowering: Ensure adequate sunlight and fertilization. Root rot: Improve drainage and reduce watering frequency.

❓ Frequently Asked Questions — Comparing These Plants

Flowering Cherry

What are the light requirements for Flowering Cherry?

Flowering Cherries require at least six hours of direct sunlight per day to produce abundant blooms. A location with full sun is ideal, ensuring the tree receives the energy needed for photosynthesis and flower development. While they can tolerate partial shade, reduced sunlight may result in fewer flowers and less vibrant foliage. Morning sun is preferable to hot afternoon sun, especially in warmer climates, as it helps prevent leaf scorch. Ensure the planting site isn’t overshadowed by taller trees or buildings that could block sunlight. If growing in a container, rotate the tree regularly to ensure even light exposure on all sides. Insufficient light can lead to leggy growth and poor flowering.

How do I care for Flowering Cherry?

Flowering Cherries thrive in well-draining soil and prefer a location with full sun to partial shade. Water deeply and regularly, especially during dry periods, but avoid overwatering. Fertilize in early spring with a balanced fertilizer to promote healthy growth and abundant blooms. Prune after flowering to remove dead or crossing branches and to shape the tree. Protect young trees from strong winds and extreme temperatures. Mulch around the base of the tree to retain moisture, suppress weeds, and regulate soil temperature. Monitor for pests and diseases and treat promptly. Provide adequate air circulation to prevent fungal issues. Consider the mature size of the tree when selecting a planting location. Regular care ensures a healthy and vibrant Flowering Cherry.

How do I propagate Flowering Cherry?

Flowering Cherries can be propagated through stem cuttings. In late spring or early summer, take semi-hardwood cuttings from healthy new growth. Cuttings should be 4-6 inches long. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cuttings in a well-draining rooting medium, such as perlite or vermiculite. Keep the rooting medium consistently moist and provide high humidity by covering the cuttings with a plastic bag or dome. Place the cuttings in a warm, bright location, but avoid direct sunlight. Roots should develop in several weeks. Once rooted, transplant the cuttings into individual pots. Division and keiki propagation are not applicable for Flowering Cherries as they are trees.

Sweet Pea

What are the light requirements for Sweet Pea?

Sweet Peas require at least 6-8 hours of direct sunlight per day to thrive and produce abundant blooms. A south-facing location is ideal, especially in cooler climates. If growing indoors, place your Sweet Peas near a sunny window or use grow lights to supplement natural light. Insufficient light can lead to leggy growth, fewer flowers, and pale foliage. Rotate the plants regularly to ensure even light exposure. In hot climates, provide some afternoon shade to prevent scorching. Monitor the leaves for signs of sunburn, such as brown spots, and adjust the plant’s position accordingly. Good air circulation is also important to prevent fungal diseases that can be exacerbated by inadequate light.

How do I care for Sweet Pea?

Sweet Peas thrive in full sun and well-drained soil. Sow seeds directly into the ground in early spring or late fall, depending on your climate. Soaking the seeds overnight can improve germination. Provide a sturdy support system, such as a trellis or netting, for the vines to climb. Water regularly, especially during dry periods, and fertilize every 2-3 weeks with a balanced fertilizer to encourage abundant blooming. Deadhead spent flowers to promote continued flowering. Protect plants from pests like aphids and slugs. Ensure good air circulation to prevent fungal diseases. Sweet Peas prefer cooler temperatures, so provide shade during the hottest part of the day in warmer climates. Monitor for signs of powdery mildew and treat promptly. Proper staking and pruning are crucial for healthy growth and prolific blooms.

How do I propagate Sweet Pea?

Sweet Peas are primarily propagated by seed.

Last updated: May 13, 2026 — Plant care data reviewed and verified by our editorial team.