Mother of Thyme vs Sedum Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
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.
Sedum
Sedum spp.
Sedum is a large genus of succulent plants known for their fleshy leaves and star-shaped flowers. They range in size from ground-hugging creepers to upright, bushy plants. Most Sedum species are outdoor plants, thriving in well-drained soil and full sun. They are popular for rock gardens, green roofs, and borders. People grow them for their drought tolerance, attractive foliage, and late-season blooms that attract pollinators. While some smaller species can be grown indoors, they often struggle to get enough light and may become leggy.
Quick Plant Comparison
| Feature | Mother of Thyme | Sedum |
|---|---|---|
| Light | Full sun (at least 6 hours of direct sunlight daily) | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal growth and flowering. |
| Watering | Every 1-2 weeks, depending on weather and soil drainage | Every 2-4 weeks, depending on environmental conditions and pot size. |
| Humidity | 30-50% | 20-50% |
| Temperature | 15-27°C | 18-27°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate To Fast, Depending On The Species. Some Species Are Aggressive Spreaders. |
| Max Height | 2-8 cm (outdoor) | Varies greatly by species, from 5cm to 60cm indoors. |
| Pet Safety | ✅ Safe | ❌ Toxic To Pets |
| Soil | Well-draining, sandy or gravelly soil | Well-draining succulent or cactus mix. |
| Beginner Friendly | ❌ No | With Caution |
| Weekly Maintenance | 5 minutes weekly | 5-10 minutes weekly outdoors; 15-20 minutes weekly indoors (including supplemental lighting adjustments). |
🔬 Botanical Information — Comparing These Plants
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. |
Sedum
| Scientific Name | Sedum spp. |
|---|---|
| Family | Crassulaceae |
| Native To | Varies widely depending on the species; found in temperate and subtropical regions worldwide. |
| Also Known As | Stonecrop, Hylotelephium |
| Leaves | Leaves are typically fleshy and succulent, ranging in shape from rounded to lance-shaped. Colors vary from green to blue-green to reddish-purple. Some species have variegated leaves. |
| Flowers | Many Sedum species produce clusters of star-shaped flowers in late summer or fall. Flower colors range from white to pink to red to yellow. Flowering is rare indoors unless provided with optimal conditions. |
📏 Size & Growth — Plant Comparison
Mother of Thyme
Sedum
🌱 Propagation — Comparing Plant Growth
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.
Sedum
Methods: Stem cuttings, Leaf cuttings, Division, Seed
Difficulty: Easy
Tips: Allow cuttings to callous over for a few days before planting in well-draining soil. For leaf cuttings, lay the leaf on top of the soil and mist occasionally.
✨ Benefits & Features — Comparing Plant Value
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
Sedum
Sedums are known for their drought tolerance and ability to thrive in poor soil conditions. Their fleshy leaves store water, allowing them to survive long periods without rainfall. Many species also have attractive, late-season blooms that attract pollinators.
- ✓ Drought-tolerant landscaping
- ✓ Attracts pollinators to the garden
- ✓ Provides late-season color
- ✓ Low maintenance once established outdoors
- ✓ Adds textural interest to rock gardens
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Mother of Thyme
Sedum
🌞 Light Requirements
Mother of Thyme
Full sun (at least 6 hours of direct sunlight daily)
Low light tolerant: ❌ No
Sedum
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal growth and flowering.
Low light tolerant: ❌ No
💧 Watering Needs
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.
Sedum
Allow the soil to dry out completely between waterings. Overwatering can lead to root rot. Water thoroughly when the soil is dry to the touch, and then allow excess water to drain away. Reduce watering frequency during the dormant season.
🌡️ Temperature & Humidity
Mother of Thyme
Temperature: 15-27°C
Humidity: 30-50%
Sedum
Temperature: 18-27°C
Humidity: 20-50%
🤔 Which Plant Is Right For You?
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.
Sedum
Sedum spp.Experienced gardeners who can provide adequate light and drainage for succulents.
✅ Choose This Plant If...
- You want a drought-tolerant plant for a sunny outdoor space.
- You are looking for a plant that attracts pollinators.
- You want a plant with interesting foliage and late-season blooms.
- You have experience growing succulents and can provide adequate light.
- You want a plant that is relatively low-maintenance once established outdoors.
❌ Skip This Plant If...
- You cannot provide at least 6 hours of direct sunlight daily.
- You tend to overwater plants.
- You have pets that might ingest the 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
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.
Sedum Care Tips
Sedum are primarily outdoor plants. Indoor cultivation is challenging due to high light requirements. They need very well-draining soil and infrequent watering. Overwatering is a common problem indoors. Supplemental lighting is often necessary.
- Ensure excellent drainage to prevent root rot.
- Provide at least 6 hours of direct sunlight daily, especially when grown indoors.
- Allow the soil to dry out completely between waterings.
- Fertilize sparingly, only during the growing season.
- Monitor for pests and treat promptly.
⚠️ Common Problems & Solutions — Plant Care Comparison
Mother of Thyme
Sedum
❓ Frequently Asked Questions — Comparing These Plants
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.
Sedum
What are the light requirements for Sedum?
Sedum require bright, indirect sunlight to thrive. Insufficient light can lead to etiolation, where the stems become stretched and the leaves pale. Ideally, place your Sedum near a south-facing window if indoors, providing at least six hours of sunlight daily. If direct sunlight is too intense, filter it with a sheer curtain.
How do I care for Sedum?
Sedum thrive in bright, indirect sunlight, needing at least 6 hours of direct sun daily if grown outdoors. Use a well-draining succulent mix to prevent root rot. Water thoroughly only when the soil is completely dry, typically every 2-4 weeks, and less frequently in winter. Avoid overwatering, as this is the most common cause of Sedum problems.
How do I propagate Sedum?
Sedum are easily propagated through leaf cuttings, stem cuttings, and offsets. For leaf cuttings, gently remove a healthy leaf from the stem and allow it to callous over for a few days. Place the leaf on top of well-draining succulent mix and mist lightly. Roots and new growth will emerge in a few weeks.
Last updated: May 20, 2026 — Plant care data reviewed and verified by our editorial team.