Box Elder vs Mother of Thyme Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Box Elder
Acer negundo
Boxelder is a medium-sized deciduous tree typically reaching 30-50 feet in height, though it can grow larger. It's distinguished by its compound leaves, resembling those of ash trees, with 3-9 leaflets. Unlike most maples, it doesn't have the typical maple leaf shape. It's a fast-growing but relatively short-lived tree, often found in disturbed areas and along waterways. While it can provide shade and is adaptable to various soil conditions, it's often considered a 'weed tree' due to its weak wood, susceptibility to pests, and tendency to self-seed aggressively. It is not suitable as an indoor plant.
Mother of Thyme
Thymus serpyllum
Thymus serpyllum, commonly known as Mother of Thyme or Creeping Thyme, is a low-growing, mat-forming perennial herb. It typically reaches only 1-3 inches in height but spreads widely. Its small, oval leaves are aromatic, releasing a pleasant fragrance when crushed. Tiny pink to purple flowers bloom in summer, attracting pollinators. Primarily an outdoor plant, it's often used as a ground cover in gardens, rockeries, and between paving stones. People grow it for its ornamental value, fragrant foliage, and culinary uses.
Quick Plant Comparison
| Feature | Box Elder | Mother of Thyme |
|---|---|---|
| Light | Full sun to partial shade | Full sun (at least 6 hours of direct sunlight daily) |
| Watering | Water deeply once or twice a week during the first year, then as needed during dry spells. | Every 1-2 weeks, depending on weather and soil drainage |
| Humidity | 30-60% | 30-50% |
| Temperature | 10-30°C | 15-27°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Moderate |
| Max Height | N/A (Outdoor tree) | 2-8 cm (outdoor) |
| Pet Safety | ❌ Toxic To Pets | ✅ Safe |
| Soil | Adaptable to a wide range of soils, including clay, loam, and sand. Prefers well-drained soil but tolerates wet conditions. | Well-draining, sandy or gravelly soil |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes monthly (pruning, pest control) | 5 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Box Elder
| Scientific Name | Acer negundo |
|---|---|
| Family | Sapindaceae |
| Native To | North America |
| Also Known As | Boxelder, Box Elder Maple, Ash-leaved Maple |
| Leaves | The leaves are compound, with 3-9 leaflets. Leaflets are typically 2-4 inches long, ovate to lanceolate in shape, and have coarsely toothed margins. The color is medium green, turning yellow in the fall. |
| Flowers | Boxelder is dioecious, meaning that male and female flowers are borne on separate trees. The flowers are small, greenish-yellow, and appear in early spring. Flowering is not a significant ornamental feature. |
Mother of Thyme
| Scientific Name | Thymus serpyllum |
|---|---|
| Family | Lamiaceae |
| Native To | Europe and North Africa |
| Also Known As | Mother of Thyme, Creeping Thyme, Wild Thyme |
| Leaves | Small, oval-shaped leaves, typically 0.5-1 cm long, with a slightly fuzzy texture. The leaves are dark green and highly aromatic, releasing a thyme scent when crushed. |
| Flowers | Produces small, tubular flowers in shades of pink to purple during the summer months. Flowering is more prolific outdoors in full sun. Rarely flowers indoors. |
📏 Size & Growth — Plant Comparison
Box Elder
Mother of Thyme
🌱 Propagation — Comparing Plant Growth
Box Elder
Methods: Seed, cuttings
Difficulty: Easy
Tips: Collect seeds in the fall and stratify them over winter. Take softwood cuttings in the spring.
Mother of Thyme
Methods: Stem cuttings, Division, Seed
Difficulty: Easy
Tips: Take stem cuttings in spring or summer and root them in well-draining soil. Division can be done in spring or fall. Seeds can be sown in spring after the last frost.
✨ Benefits & Features — Comparing Plant Value
Box Elder
Boxelder is unique among maples for its compound leaves, resembling those of ash trees. It is also known for its tolerance of poor soil conditions and its rapid growth rate.
- ✓ Provides shade during hot weather.
- ✓ Attracts birds and other wildlife to the yard.
- ✓ Can help stabilize soil and prevent erosion.
- ✓ Relatively fast growth provides quick results.
- ✓ Tolerates a wide range of soil conditions.
- ⚠️ Toxic to pets
Mother of Thyme
Mother of Thyme is known for its ability to release a pleasant fragrance when stepped on, making it a popular choice for pathways and ground cover. Its drought tolerance and low-maintenance nature make it a versatile addition to various garden settings.
- ✓ Provides fragrant ground cover
- ✓ Attracts pollinators to the garden
- ✓ Edible herb for culinary use
- ✓ Drought-tolerant and low-maintenance
- ✓ Adds visual interest to rock gardens and pathways
- 🐾 Pet Safe
📅 Maintenance Schedule — Plant Care Comparison
Box Elder
Mother of Thyme
🌞 Light Requirements
Box Elder
Full sun to partial shade
Low light tolerant: ❌ No
Mother of Thyme
Full sun (at least 6 hours of direct sunlight daily)
Low light tolerant: ❌ No
💧 Watering Needs
Box Elder
Water deeply during dry periods, especially when young. Mature trees are relatively drought-tolerant. Avoid overwatering, which can lead to root rot. Check soil moisture before watering.
Mother of Thyme
Water thoroughly when the soil surface feels dry to the touch. Avoid overwatering, as this can lead to root rot. Allow the soil to dry out slightly between waterings. Signs of overwatering include yellowing leaves and a musty smell. Underwatering results in wilting and dry, brittle leaves.
🌡️ Temperature & Humidity
Box Elder
Temperature: 10-30°C
Humidity: 30-60%
Mother of Thyme
Temperature: 15-27°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Box Elder
Acer negundoLandowners needing a fast-growing shade tree in a challenging environment, understanding its potential drawbacks.
✅ Choose This Plant If...
- You need a fast-growing shade tree for a large property.
- You have poor soil conditions where other trees struggle.
- You want to attract wildlife to your yard.
- You need a tree that can tolerate occasional flooding.
- You are prepared to manage potential pest and disease issues.
❌ Skip This Plant If...
- You have limited space in your yard.
- You are looking for a low-maintenance tree.
- You have horses or other livestock that might ingest the seeds or foliage.
- You want a tree with strong, durable wood.
- You want a tree that is guaranteed to be pest-free.
Mother of Thyme
Thymus serpyllumGardeners looking for a fragrant, low-maintenance ground cover for sunny areas.
✅ Choose This Plant If...
- You want a fragrant ground cover that releases scent when stepped on.
- You need a plant that tolerates dry conditions and full sun.
- You want to attract pollinators to your garden.
- You enjoy using fresh herbs in your cooking.
- You want a low-maintenance plant that requires minimal care.
❌ Skip This Plant If...
- You don't have a sunny outdoor space.
- You tend to overwater your plants.
- You are looking for a tall, showy plant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Box Elder needs full sun to partial shade, while Mother of Thyme prefers full sun (at least 6 hours of direct sunlight daily).
Box Elder has fast growth, while Mother of Thyme grows moderate.
💡 Pro Tips For Comparing These Plants
Box Elder Care Tips
Boxelder is an outdoor tree and is not suitable for indoor cultivation. It requires full sun, ample space, and is prone to pests and diseases. It is a fast-growing tree that can become quite large, making it unsuitable for indoor environments. Attempting to grow it indoors will likely result in a stressed and unhealthy plant.
- Water deeply during the first year to establish a strong root system.
- Prune regularly to maintain shape and remove dead or damaged branches.
- Monitor for pests and diseases and treat promptly.
- Avoid planting near structures due to potential for branch breakage.
- Mulch around the base of the tree to retain moisture and suppress weeds.
Mother of Thyme Care Tips
Mother of Thyme is primarily an outdoor plant that requires full sun and well-draining soil. Growing it indoors is challenging due to its high light requirements. It is prone to root rot if overwatered. Indoor success requires very bright light and careful watering.
- Plant in well-draining soil to prevent root rot.
- Provide at least 6 hours of direct sunlight daily.
- Water deeply but infrequently, allowing the soil to dry out between waterings.
- Prune lightly after flowering to maintain shape.
- Avoid over-fertilizing, as this can lead to leggy growth.
⚠️ Common Problems & Solutions — Plant Care Comparison
Box Elder
Mother of Thyme
❓ Frequently Asked Questions — Comparing These Plants
Box Elder
What are the light requirements for Box Elder?
Box Elder thrives in bright, indirect light. Direct sunlight can scorch its leaves, especially when grown indoors. A location near an east or west-facing window is ideal, providing ample light without the harshness of direct sun. If you only have a south-facing window, filter the light with a sheer curtain. Insufficient light can lead to leggy growth and pale foliage. Rotate the plant regularly to ensure even light exposure on all sides. During winter months, when natural light is scarce, consider supplementing with a grow light to maintain healthy growth.
How do I care for Box Elder?
Caring for a Box Elder indoors requires attention to several key factors. Provide bright, indirect light, avoiding direct sunlight which can scorch the leaves. Water thoroughly when the top inch of soil is dry, ensuring good drainage to prevent root rot. Maintain moderate humidity levels, especially during drier months, by misting the foliage or using a humidifier. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Repot young plants annually in spring to a slightly larger pot with well-draining potting mix. Prune regularly to maintain shape and remove any dead or damaged branches. Monitor for pests and treat promptly with insecticidal soap or neem oil. Provide stable conditions and avoid sudden changes in temperature or environment.
How do I propagate Box Elder?
Box Elder can be propagated through stem cuttings or air layering. For stem cuttings, take a 4-6 inch cutting from a healthy stem in spring or 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. Roots should develop in 4-6 weeks. For air layering, make a small incision in a healthy stem, wrap it with moist sphagnum moss, and cover it with plastic wrap. Secure the wrap with tape. Once roots develop, cut the stem below the moss and pot the new plant. Both methods require patience and consistent moisture.
Mother of Thyme
What are the light requirements for Mother of Thyme?
Mother of Thyme thrives in bright, indirect sunlight. Aim for at least six hours of sunlight per day for optimal growth and flowering. Insufficient light can lead to leggy growth and reduced blooming. An east- or south-facing window is usually ideal, but be mindful of intense afternoon sun, which can scorch the leaves, especially during the summer months.
How do I care for Mother of Thyme?
Mother of Thyme is relatively easy to care for, making it a popular choice for both novice and experienced plant enthusiasts. Provide it with plenty of bright, indirect sunlight; at least 6 hours a day is ideal. Water thoroughly only when the soil is completely dry, as overwatering can lead to root rot. Use well-draining soil, such as a cactus or succulent mix, to ensure proper drainage.
How do I propagate Mother of Thyme?
Mother of Thyme is easily propagated through several methods. Leaf cuttings involve gently twisting off a healthy leaf and allowing it to callous over for a few days before placing it on well-draining soil. Offsets, which are small plantlets that grow around the base of the mother plant, can be carefully separated and planted in their own pots. Stem cuttings are another effective method.
Last updated: April 19, 2026 — Plant care data reviewed and verified by our editorial team.