Franklin Tree vs Natal Plum Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Franklin Tree
Franklinia alatamaha
The Franklin Tree is a deciduous tree or large shrub known for its beautiful camellia-like, fragrant white flowers that bloom in late summer to early fall. It has attractive, glossy green leaves that turn vibrant shades of red and orange in the fall. Sadly, it is extinct in the wild, making it a rare and highly prized ornamental tree. It typically grows to a height of 10-30 feet. People grow it for its stunning floral display, fall color, and historical significance.
Natal Plum
Carissa macrocarpa
Carissa macrocarpa, or Natal Plum, is a dense, evergreen shrub or small tree known for its glossy, dark green leaves and fragrant, star-shaped white flowers. It produces edible, plum-like red fruits that are rich in vitamin C. While it can be grown in containers, it's primarily an outdoor plant, thriving in warm climates. People grow it for its ornamental value, edible fruit, and use as a security hedge due to its thorny branches. It's not ideally suited as an indoor plant due to high light requirements and potential size.
Quick Plant Comparison
| Feature | Franklin Tree | Natal Plum |
|---|---|---|
| Light | Full sun to partial shade | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily to thrive and produce fruit. |
| Watering | 2-3 times per week during the growing season, less frequently in winter, depending on rainfall and soil moisture. | Every 7-14 days, depending on environmental conditions and pot size. |
| Humidity | 40-60% | 40-60% |
| Temperature | 10-24°C | 18-27°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | N/A (Outdoor Tree) | Indoors: Rarely exceeds 1-2 meters. Outdoors: Up to 4 meters. |
| Pet Safety | ✅ Safe | ❌ Toxic To Pets |
| Soil | Well-drained, acidic soil rich in organic matter | Well-draining soil mix, such as a combination of potting soil, perlite, and sand. |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly during growing season. | 30 minutes weekly (including watering, pruning, and pest control) |
🔬 Botanical Information — Comparing These Plants
Franklin Tree
| Scientific Name | Franklinia alatamaha |
|---|---|
| Family | Theaceae |
| Native To | Southeastern United States (Georgia, along the Altamaha River) |
| Also Known As | Franklin Tree |
| Leaves | The leaves are alternate, simple, oblong to obovate, 3-6 inches long, and have finely serrated margins. They are glossy green in summer and turn brilliant shades of red, orange, and purple in the fall. |
| Flowers | The Franklin Tree produces 3-inch wide, cup-shaped, fragrant white flowers that resemble camellias. The flowers have prominent yellow stamens in the center and bloom in late summer to early fall. |
Natal Plum
| Scientific Name | Carissa macrocarpa |
|---|---|
| Family | Apocynaceae |
| Native To | South Africa |
| Also Known As | Natal Plum, Large Num-Num |
| Leaves | The leaves are glossy, dark green, and oval-shaped, measuring 2-5 cm in length. They are arranged oppositely on the stems and have a leathery texture. |
| Flowers | Natal Plum produces fragrant, star-shaped white flowers in spring and summer. While it can flower indoors with sufficient light, fruit production is less common. |
📏 Size & Growth — Plant Comparison
Franklin Tree
Natal Plum
🌱 Propagation — Comparing Plant Growth
Franklin Tree
Methods: Seed, stem cuttings, root cuttings
Difficulty: Difficult
Tips: Seed propagation requires stratification and can be slow. Stem cuttings are best taken in late spring or early summer. Root cuttings can be taken in late winter.
Natal Plum
Methods: Stem cuttings, Seed
Difficulty: Moderate
Tips: Take semi-hardwood cuttings in spring or summer. Dip the cut end in rooting hormone and plant in a well-draining potting mix. Keep the soil moist and provide warmth and humidity.
✨ Benefits & Features — Comparing Plant Value
Franklin Tree
The Franklin Tree is unique because it is extinct in the wild and all existing trees are descended from the Bartram's collection. Its late-season blooms and vibrant fall color make it a standout ornamental tree.
- ✓ Provides late-season blooms for visual interest.
- ✓ Offers stunning fall foliage color.
- ✓ Attracts pollinators to the garden.
- ✓ Adds historical significance to the landscape.
- ✓ Offers a unique and rare specimen for plant collectors.
- 🐾 Pet Safe
Natal Plum
The Natal Plum is unique for its combination of fragrant flowers, edible fruit, and thorny branches. Its drought tolerance makes it a suitable choice for xeriscaping.
- ✓ Provides edible fruit rich in Vitamin C
- ✓ Offers fragrant flowers that attract pollinators
- ✓ Acts as a natural security barrier due to its thorns
- ✓ Adds an ornamental touch to gardens with its glossy foliage
- ✓ Can be used in traditional medicine (with caution and expert knowledge)
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Franklin Tree
Natal Plum
🌞 Light Requirements
Franklin Tree
Full sun to partial shade
Low light tolerant: ❌ No
Natal Plum
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily to thrive and produce fruit.
Low light tolerant: ❌ No
💧 Watering Needs
Franklin Tree
Water deeply and regularly, especially during dry periods. Keep the soil consistently moist, but not waterlogged. Overwatering can lead to root rot. Underwatering will cause leaf drop and stress.
Natal Plum
Water deeply when the top inch of soil is dry. Avoid overwatering, which can lead to root rot. Allow the soil to dry slightly between waterings. Signs of underwatering include wilting leaves; overwatering includes yellowing leaves and soggy soil.
🌡️ Temperature & Humidity
Franklin Tree
Temperature: 10-24°C
Humidity: 40-60%
Natal Plum
Temperature: 18-27°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Franklin Tree
Franklinia alatamahaExperienced gardeners looking for a unique and historically significant ornamental tree for their landscape.
✅ Choose This Plant If...
- You want a rare and historically significant tree in your garden.
- You desire late-season blooms when many other plants have finished flowering.
- You appreciate vibrant fall foliage.
- You have acidic, well-drained soil.
- You are an experienced gardener willing to provide specific care.
❌ Skip This Plant If...
- You live in a climate with alkaline soil.
- You are a beginner gardener.
- You want a low-maintenance plant.
Natal Plum
Carissa macrocarpaExperienced gardeners in warm climates who want an ornamental shrub with edible fruit, and who can ensure it is kept away from pets.
✅ Choose This Plant If...
- You live in a warm climate with plenty of sunshine.
- You want an ornamental shrub with fragrant flowers and edible fruit.
- You need a natural barrier or security hedge.
- You are an experienced gardener looking for a new challenge.
- You are willing to provide the specific care this plant needs.
❌ Skip This Plant If...
- You have pets or small children due to the plant's toxicity.
- You live in a cold climate with limited sunlight.
- You are a beginner gardener.
- You don't have space for a large shrub.
- You are looking for a low-maintenance indoor plant.
🎯 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
Franklin Tree Care Tips
The Franklin Tree is primarily an outdoor tree and is not suitable for indoor growing. It requires specific soil conditions, consistent moisture, and protection from extreme temperatures. Maintaining proper acidity and drainage is crucial for its survival. Indoor growing is not recommended due to its size and environmental needs.
- Ensure the soil is consistently moist but not waterlogged.
- Apply an acid-forming fertilizer in early spring.
- Mulch around the base of the tree to retain moisture and suppress weeds.
- Protect from harsh winds and extreme cold in winter.
- Monitor for pests and diseases and treat promptly.
Natal Plum Care Tips
Natal Plum is primarily an outdoor plant and requires significant sunlight to thrive. Growing it indoors is challenging due to its high light needs and potential size. It needs well-draining soil, moderate watering, and occasional fertilization. Toxicity to pets is a major concern.
- Provide at least 6 hours of direct sunlight daily for optimal growth and fruit production.
- Water deeply but infrequently, allowing the soil to dry slightly between waterings.
- Fertilize regularly during the growing season with a balanced fertilizer.
- Prune regularly to maintain shape and encourage new growth.
- Protect from frost in colder climates.
⚠️ Common Problems & Solutions — Plant Care Comparison
Franklin Tree
Natal Plum
❓ Frequently Asked Questions — Comparing These Plants
Franklin Tree
What are the light requirements for Franklin Tree?
Franklin Trees thrive in bright, indirect light. Avoid direct sunlight, especially during the hottest parts of the day, as it can scorch the leaves. An east-facing window is often ideal, providing gentle morning sun. A south- or west-facing window can also work, but be sure to filter the light with a sheer curtain to prevent leaf burn. Insufficient light can lead to leggy growth and reduced flowering.
How do I care for Franklin Tree?
To successfully grow a Franklin Tree indoors, begin with a well-draining potting mix in a pot at least 12 inches in diameter. Place it in a location with bright, indirect light. Water thoroughly when the top inch of soil feels dry, ensuring proper drainage to avoid root rot. Maintain moderate humidity levels, ideally around 50-60%, using a humidifier if necessary.
How do I propagate Franklin Tree?
Franklin Trees can be propagated through stem cuttings and air layering, though both methods can be challenging. For stem cuttings, take a 4-6 inch cutting from new growth 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 and humid. Place a plastic bag over the cutting to retain humidity. Rooting can take several weeks to months.
Natal Plum
What are the light requirements for Natal Plum?
Natal Plum requires ample sunlight to flourish and produce its characteristic blooms and fruits. Ideally, it should receive at least 6 hours of direct sunlight per day. In regions with intense sunlight, particularly during the hottest part of the day, providing some afternoon shade can prevent leaf scorch.
How do I care for Natal Plum?
Natal Plum thrives in full sun to partial shade. Ensure at least 6 hours of sunlight daily for optimal flowering and fruit production. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain. Avoid overwatering, which can lead to root rot. Maintain moderate humidity, especially indoors.
How do I propagate Natal Plum?
Natal Plum can be propagated through stem cuttings. Take 4-6 inch stem cuttings from healthy, non-flowering shoots in spring or summer. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cuttings in a well-draining potting mix. Keep the soil moist and provide bright, indirect light. Rooting typically occurs within 4-8 weeks.
Last updated: May 4, 2026 — Plant care data reviewed and verified by our editorial team.