Garden Balsam vs Perennial Pea Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Garden Balsam
Impatiens balsamina
Garden Balsam is an annual flowering plant typically grown outdoors. It features upright, bushy growth reaching heights of 15-75 cm. The plant is characterized by its lance-shaped leaves and showy, camellia-like flowers that bloom in a variety of colors, including pink, red, purple, and white. The flowers are often double or semi-double. Garden Balsam is popular for its ease of cultivation and vibrant blooms, making it a favorite in gardens and borders. It's primarily an outdoor plant and struggles indoors due to high light requirements.
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.
Quick Plant Comparison
| Feature | Garden Balsam | Perennial Pea |
|---|---|---|
| Light | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering. | Full sun (at least 6 hours of direct sunlight daily) |
| Watering | Every 2-3 days in hot weather, less frequently in cooler conditions. Check soil moisture before watering. | Every 7-10 days, depending on weather conditions |
| Humidity | 40-60% | 30-50% |
| Temperature | 18-27°C | 15-25°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Fast |
| Max Height | 30-75 cm (outdoors; significantly less if attempted indoors) | N/A (Outdoor plant, not suitable for indoor growing) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining, fertile soil rich in organic matter. A mix of potting soil, compost, and perlite is suitable. | Well-drained soil, loamy or sandy soil is preferred |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 15 minutes weekly | 30 minutes weekly during growing season |
🔬 Botanical Information — Comparing These Plants
Garden Balsam
| Scientific Name | Impatiens balsamina |
|---|---|
| Family | Balsaminaceae |
| Native To | India and Myanmar |
| Also Known As | Garden Balsam, Rose Balsam, Touch-Me-Not |
| Leaves | Lance-shaped leaves with serrated edges. Leaves are typically green, but some varieties may have reddish or bronze hues. The leaves are arranged alternately along the stem. |
| Flowers | Flowers profusely outdoors in summer. Flowers are typically 2-5 cm in diameter and come in a variety of colors, including pink, red, purple, white, and orange. Double and semi-double forms are common. Rarely flowers indoors due to insufficient light. |
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
Garden Balsam
Perennial Pea
🌱 Propagation — Comparing Plant Growth
Garden Balsam
Methods: Seed, Stem cuttings
Difficulty: Easy
Tips: Seeds can be sown directly into the garden after the last frost or started indoors 6-8 weeks before. Stem cuttings root easily in water or moist soil.
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
Garden Balsam
The seed pods explode when touched, dispersing seeds. The flowers are often double or semi-double, resembling miniature roses or camellias. It is an annual, completing its life cycle in one growing season.
- ✓ Provides vibrant color to gardens.
- ✓ Attracts pollinators like bees and butterflies.
- ✓ Easy to propagate from seed.
- ✓ Fast-growing and fills in spaces quickly.
- ✓ Can be used in cut flower arrangements.
- ⚠️ 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
Garden Balsam
Perennial Pea
🌞 Light Requirements
Garden Balsam
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering.
Low light tolerant: ❌ No
Perennial Pea
Full sun (at least 6 hours of direct sunlight daily)
Low light tolerant: ❌ No
💧 Watering Needs
Garden Balsam
Water regularly, keeping the soil consistently moist but not waterlogged. Allow the top inch of soil to dry out slightly between waterings. Overwatering can lead to root rot, while underwatering can cause wilting and reduced flowering.
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
Garden Balsam
Temperature: 18-27°C
Humidity: 40-60%
Perennial Pea
Temperature: 15-25°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Garden Balsam
Impatiens balsaminaGardeners looking for vibrant, easy-to-grow annual flowers for outdoor beds and borders.
✅ Choose This Plant If...
- You want a fast-growing annual flower for your garden.
- You want a plant that attracts pollinators.
- You want a plant with vibrant, colorful blooms.
- You want a plant that is easy to propagate from seed.
- You are looking for a plant to fill in gaps in your flower beds quickly.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You don't have a sunny outdoor space.
- You are looking for a low-maintenance indoor plant.
Perennial Pea
Lathyrus latifoliusGardeners 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.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Both plants have similar basic care requirements but differ in appearance and specific needs. Compare plants carefully to find the best fit for your space.
💡 Pro Tips For Comparing These Plants
Garden Balsam Care Tips
Garden Balsam is primarily an outdoor plant that requires full sun and consistent moisture. It's challenging to grow indoors due to its high light requirements and susceptibility to pests. Requires regular fertilization and deadheading to promote continuous blooming. Toxicity to pets is a significant concern.
- Provide well-draining soil to prevent root rot.
- Water regularly, especially during hot weather.
- Fertilize every 2-4 weeks during the growing season.
- Deadhead spent flowers to encourage more blooms.
- Protect from strong winds.
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.
⚠️ Common Problems & Solutions — Plant Care Comparison
Garden Balsam
Perennial Pea
❓ Frequently Asked Questions — Comparing These Plants
Garden Balsam
What are the light requirements for Garden Balsam?
Garden Balsam prefers bright, indirect sunlight. Direct sunlight, especially during the hottest part of the day, can scorch the leaves and damage the delicate flowers. An east-facing window or a location with filtered sunlight is ideal. If growing outdoors, choose a spot that receives morning sun and afternoon shade. Insufficient light can result in leggy growth, fewer blooms, and pale foliage. Rotate the plant regularly to ensure even light exposure on all sides. Supplemental lighting, such as a grow light, can be beneficial during the darker winter months to maintain healthy growth and flowering.
How do I care for Garden Balsam?
Garden Balsam thrives in well-draining soil that is rich in organic matter. Water regularly, keeping the soil consistently moist but not waterlogged. Fertilize every 2-3 weeks during the blooming season with a balanced liquid fertilizer diluted to half strength. Provide bright, indirect sunlight for optimal growth and flowering. Avoid exposing the plants to intense afternoon sun, which can scorch the leaves. Deadhead spent flowers to encourage continuous blooming. Pinch back the tips of the stems to promote bushier growth. Protect from frost as Garden Balsam is sensitive to cold temperatures. Regularly inspect the plants for pests such as aphids and spider mites and treat accordingly. Maintain good air circulation to prevent fungal diseases.
How do I propagate Garden Balsam?
Garden Balsam can be easily propagated from stem cuttings. Take a 4-6 inch stem cutting from a healthy plant, removing the lower leaves. Dip the cut end in rooting hormone and plant it in a well-draining potting mix. Keep the soil consistently moist and provide bright, indirect light. Roots should develop in 2-3 weeks. Garden Balsam can also be propagated from seed. Collect seeds from mature seed pods and sow them directly into the soil in spring. Keep the soil consistently moist and provide warmth. Division is not typically used for Garden Balsam. Keiki propagation is not applicable to Garden Balsam.
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: April 24, 2026 — Plant care data reviewed and verified by our editorial team.