Crabapple vs Sweet Pea Plant Comparison

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

Crabapple

Crabapple

Malus spp.

VS
Sweet Pea

Sweet Pea

Lathyrus odoratus

Crabapple

Crabapple

Malus spp.

Crabapples are deciduous trees or shrubs known for their profuse spring blossoms and small, apple-like fruits. They range in size from small shrubs to medium-sized trees. The flowers are typically pink or white, and the fruits can be red, yellow, or green. Crabapples are primarily grown for their ornamental value, adding beauty to landscapes with their showy flowers and colorful fruits. They are not typically grown indoors due to their size and high light requirements. The fruit is edible but often tart.

Rosaceae Native to North America, Asia, and Europe
✨ Features: Beautiful spring blossoms, colorful fruit in fall and winter, attracts birds
📖 Read Complete Crabapple 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 Crabapple Sweet Pea
Light Full sun (at least 6 hours of direct sunlight per day) 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 Not applicable for indoor growing. Outdoors: 6-30 feet 1-2 meters (outdoors). Significantly smaller if grown indoors.
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining soil, slightly acidic to neutral pH 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 weekly (including watering, pruning, and pest control) 30 minutes weekly

🔬 Botanical Information — Comparing These Plants

Crabapple

Scientific Name Malus spp.
Family Rosaceae
Native To Native to North America, Asia, and Europe
Also Known As Crabapple, Wild Apple
Leaves The leaves are typically oval or elliptical, with serrated edges. They are usually green, but some varieties may have reddish or purplish foliage. The leaves are deciduous and turn yellow or reddish in the fall.
Flowers Crabapples produce abundant flowers in the spring. The flowers are typically pink or white, but some varieties may have red or purple flowers. The flowers are usually fragrant and attract pollinators.

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

Crabapple

Height Not applicable for indoor growing. Outdoors: 6-30 feet
Spread Not applicable for indoor growing. Outdoors: 6-30 feet
Growth Rate Moderate
Growth Pattern Crabapples typically grow as small to medium-sized trees with a rounded or spreading crown. Some varieties can also be shrub-like.

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

Crabapple

Methods: Seed, Grafting, Cuttings

Difficulty: Moderate

Tips: Grafting is the most reliable method for propagating specific cultivars. Take semi-hardwood cuttings in summer. Stratify seeds before planting.

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

Crabapple

Crabapples are known for their showy spring blossoms and persistent fruit that provides winter interest. They are also important pollinators for apple orchards and attract birds to the garden.

  • ✓ Provides beautiful spring blossoms.
  • ✓ Attracts birds and wildlife.
  • ✓ Offers colorful fruit in the fall and winter.
  • ✓ Can be used to make jams and jellies.
  • ✓ Provides shade in the summer.
  • ⚠️ 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

Crabapple

Repotting Not applicable for outdoor trees.
Pruning Prune in late winter or early spring to remove dead, damaged, or crossing branches. Shape the tree for optimal air circulation and sunlight penetration.
Fertilizing Balanced fertilizer (10-10-10) in early spring
Seasonal Care In spring, fertilize and prune. In summer, monitor for pests and diseases. In fall, collect fallen leaves and fruits. In winter, protect young trees from frost damage.

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

Crabapple

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

Low light tolerant: ❌ No

Sweet Pea

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

Low light tolerant: ❌ No

💧 Watering Needs

Crabapple

Water deeply when the top few inches of soil are dry. Avoid overwatering, which can lead to root rot. During the growing season, water more frequently. Reduce watering in the dormant season. Signs of overwatering include yellowing leaves and soggy soil. Underwatering is indicated by wilting leaves and dry 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

Crabapple

Temperature: 10-24°C

Humidity: 30-50%

Sweet Pea

Temperature: 13-18°C

Humidity: 40-60%

🤔 Which Plant Is Right For You?

Crabapple

Crabapple

Malus spp.
Care: Expert Time: 30 minutes weekly (including watering, pruning, and pest control) Beginner: No

Gardeners with outdoor space who want ornamental trees with spring blossoms and colorful fruit.

✅ Choose This Plant If...

  • You want a tree with beautiful spring flowers.
  • You want a tree that attracts birds to your yard.
  • You enjoy making homemade jams and jellies.
  • You have a sunny location in your yard.
  • You want a tree with year-round interest due to its fruit.

❌ Skip This Plant If...

  • You have limited outdoor space.
  • You are looking for an indoor plant.
  • You have pets that might ingest the plant.
  • You live in an area prone to apple scab or fire blight.
📍 Ideal Location: Outdoor garden or landscape with full sun exposure
🎨 Style: Traditional, Cottage, Country
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, the stems, leaves, and seeds of crabapples contain cyanide and can be toxic to dogs, cats, and horses. Symptoms include dilated pupils, difficulty breathing, panting, and shock.
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

☀️

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

📈

Crabapple has moderate growth, while Sweet Pea grows fast.

💡 Pro Tips For Comparing These Plants

Crabapple Care Tips

Crabapples are outdoor trees and are not suitable for indoor growing. They require full sun, well-draining soil, and regular pruning. Indoor attempts will likely fail due to insufficient light and space.

  • Plant in well-draining soil to prevent root rot.
  • Prune annually to maintain shape and remove deadwood.
  • Monitor for pests and diseases regularly.
  • Fertilize in early spring with a balanced fertilizer.
  • Water deeply during dry periods.
❄️ Winter: Protect young trees from frost damage by wrapping the trunk with burlap. Water sparingly during the winter months. Remove any fallen leaves or fruits to prevent disease.
☀️ Summer: Monitor for pests and diseases regularly. Water deeply during dry periods. Mulch around the base of the tree to retain moisture and suppress weeds.

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

Crabapple

Common Issues: Apple scab, Fire blight, Aphids, Japanese beetles
Solutions: Apply fungicides for apple scab and bactericides for fire blight. Use insecticidal soap for aphids and handpick Japanese beetles. Ensure good air circulation to prevent fungal diseases.

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

Crabapple

What are the light requirements for Crabapple?

Crabapple trees thrive in bright, indirect light indoors. A south-facing or east-facing window is ideal, providing ample sunlight without direct, harsh rays that can scorch leaves. If a south-facing window is too intense, diffuse the light with a sheer curtain. Insufficient light can lead to leggy growth, reduced flowering, and a lack of fruit production. Rotate the plant regularly to ensure all sides receive adequate light. During winter months, supplemental lighting may be necessary to compensate for shorter days and lower light levels. Consider using a grow light to provide additional illumination, especially if natural light is limited.

How do I care for Crabapple?

Indoor Crabapple trees require well-draining potting mix and a pot with drainage holes to prevent waterlogging. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain away. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Provide bright, indirect light, ideally near a sunny window. Prune regularly to maintain shape and encourage branching. Rotate the plant periodically to ensure even growth. Maintain stable temperatures between 60-75°F (15-24°C) and avoid sudden changes. Provide adequate humidity, especially during winter months, using a humidifier or pebble tray. Repot every 2-3 years as needed, using a slightly larger container. Monitor for pests and diseases, and treat promptly if necessary.

How do I propagate Crabapple?

Crabapples can be propagated through stem cuttings or air layering.

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: April 24, 2026 — Plant care data reviewed and verified by our editorial team.