Introducing the Sempervivum tectorum, also known as common houseleek, which is a popular mat-forming variety of Hen and chicks Sempervivum genus. With its rosette-shaped clusters of fleshy leaves and its ability to produce numerous offsets, the house leek plant embodies the classic hen and chick growth pattern.  

Native to the mountains of Southern Europe, the Sempervivum tectorum has several other names such as roof houseleek, St. Patrick cabbage, bullocks eye, Jupiter's beard, thunder plant, and live forever. These names highlight different aspects of the house leek plant, such as its ability to grow on rooftops (roof houseleek), its association with the Irish holiday (St. Patrick cabbage), or its resilience and longevity (live forever).  

Sempervivum tectorum is a succulent with thick, fleshy green leaves, variably tinged with red and purple tips.

It grows 4 inches in diameter and produces offsets attached to the mother rosette by horizontal stems.

The Sempervivum tectorum flowers produce tall, slender stalks topped with clusters of small, star-shaped blooms. In the summer, it produces red-purple flowers.

After flowering, the individual rosettes die, leaving the chicks to fill the space and spread, hence the common name of hens and chicks.

This Sempervivum tectorum plant is commonly used in rock gardens, as a border front, in rock crevices, along stone walls, as a small area of ground cover, and as an edging or foundation. It makes an excellent container plant and can be planted in rock walls for a balance of drainage, radiant heat, and root protection. When grouped together or massed, as in a small area ground cover, hens and chicks flourish. 

When and How to Water Your Common Houseleek 

When it comes to watering your Sempervivum tectorum, you don't want to overwater it and risk root rot, but you also don't want to let it completely dry out.   

In the spring and summer, during the growing season, you can water your sempervivum once every 1-2 weeks. Make sure to water this common houseleek plant thoroughly, allowing the water to soak into the soil. But here's the trick: before watering again, make sure the soil is dry about an inch deep. This will prevent overwatering.   

In the winter, when your Sempervivum tectorum plant goes into a dormant phase, you can reduce watering to once every 4-6 weeks. Remember, succulents like the common houseleek store water in their leaves, so they're pretty good at surviving dry periods. Just keep an eye on the soil moisture and adjust your watering schedule accordingly. 

Light Requirements - Where to Place Your Sempervivum tectorum 

When grown indoors, it's important to provide your plant with bright, indirect light. Place your plants near a window that receives plenty of sunlight throughout the day. If you don't have a window with enough light, you can also use grow lights to supplement your houseleek plant light needs. Aim for about 6-8 hours of light per day for these lovely succulents. 

For outdoor cultivation, your Sempervivum tectorum hens and chicks love the full sun. These houseleek plants thrive in bright, direct sunlight. Find a spot in your garden or balcony where they can receive at least 6-8 hours of direct sunlight each day. 

Remember, it is hardy succulent and can tolerate some shade, but it won't grow as compact and vibrant as it would in full sun. So, if you want them to look their best, give them plenty of sunshine. 

Whether you're growing them indoors or outdoors, just keep an eye on the leaves. If they start to stretch or become pale, it's a sign that they're not getting enough light. On the other hand, if the leaves turn brown or scorched, it might be a sign of too much direct sunlight. 

Optimal Soil & Fertilizer Needs 

When it comes to soil, these succulents prefer well-drained soils that allow excess water to flow out easily. A good option is sandy or gravelly soils, which you can find at your local garden center or make yourself by combining regular potting soil with sand or perlite. This mixture helps prevent water from pooling around the roots and causing rot. 

As an alternative, you can create your own potting mix by combining equal portions of perlite, coarse sand, and good natural potting soil. Ideally, you want to use our specialized succulent potting mix that contains 5 natural substrates and organic mycorrhizae to promote the development of a strong root system that helps your common houseleek succulent to thrive.  

As for fertilizing, sempervivum tectorum doesn't require a lot of nutrients. You can fertilize them sparingly, about once a year, in the spring. A balanced (5-10-5), diluted succulent NPK fertilizer can be used. Just make sure to follow the instructions and avoid over-fertilizing, as it can lead to leggy growth and weak plants.  

Remember, these houseleek succulents are adapted to survive in nutrient-poor conditions, so they don't need a lot of extra feeding. In fact, too much fertilizer or poor soil can actually harm them. It's better to err on the side of caution and provide them with a lean diet. 

Hardiness Zone & More 

When it comes to growing Sempervivum tectorum indoors, they are quite hardy and can tolerate a wide range of temperatures, but they thrive in temperatures between 60°F and 75°F during the day. At night, they can handle slightly cooler temperatures, around 45°F to 55°F. So, keeping them in a room with moderate temperatures should work well. Also, they prefer low humidity levels, similar to what you would find in a typical indoor environment. So, you don't need to worry too much about humidity levels when growing them indoors. 

Sempervivum tectorum is a cold-hardy plant suitable for outdoor cultivation anywhere in the US, growing in hardiness zones 3-8. 

It can tolerate temperatures as low as -30°F in winter and as high as 90°F in summer, making it ideal for outdoor gardens and handling seasonal temperature fluctuations.  

They prefer lower humidity levels and can handle dry conditions. So, if you live in a region with higher humidity, make sure to provide them with well-draining soil and avoid overwatering to prevent any potential issues. 

Wildlife - Sempervivum tectorum Attracts the Following Friendly Pollinators

Sempervivum tectorum is not just a visual delight but also a magnet for pollinators. Its vibrant summer flowers, often in shades of pink, purple, or red, attract bees, butterflies, hummingbirds, and other beneficial insects. These pollinators play a vital role in maintaining the health of your garden by encouraging biodiversity and supporting the ecosystem.

Butterflies

Bees

Hummingbirds

Lady Bugs

Multi Pollinators

Other Birds

According to ASPCA, the Sempervivum tectorum is considered non-toxic to humans, cats, dogs, and horses. This makes it an ideal plant choice for pet-friendly households where curious animals might nibble on foliage. Its non-toxic nature ensures that your furry friends remain safe while you enjoy the beauty and resilience of this hardy succulent.

How to Propagate Your Sempervivum tectorum

When it comes to propagation, sempervivum is a relatively easy plant to propagate. It can be grown from seeds, but the most common method is through offsets. These offsets, or chicks, can be carefully separated from the mother plant and planted in their own pots or directly in the garden. Over time with proper Sempervivum tectorum care, they will grow into mature plants, continuing the cycle of hens and chicks. 

Key Takeaways

The Bottom Line 

Overall, the Sempervivum tectorum is a popular and delightful hen and chick succulent plant that brings beauty and charm to any garden or container. With its unique growth habit of producing clusters of smaller offsets around the mother plant, it creates a lovely family of hens and chicks. The thick, fleshy leaves in various colors and the delicate star-shaped flowers add to its appeal. The house leek plants spread to about 4 inches. This very cold hardy and resilient plant can thrive in USDA zones 3-9 and is easy to propagate through offsets. Plus, it's generally non-toxic, making it a safe choice for households with pets or children. So, if you're looking for a low-maintenance and visually appealing plant, hens and chicks are a fantastic option to consider.