A Detailed Guide to Growing Sempervivum tectorum (Houseleek) of the Crassulaceae Family

Sempervivum tectorum of the Crassulaceae family is also known as Hens and Chicks, Guanyin Lotus, and Buddha's Seat Lotus. It originated in the mountainous regions of Spain, France, Italy, and other European countries. Its fleshy leaves live up to its name, arranged in a rosette whorl resembling a lotus seat, giving it high ornamental value. Let's take a look together at how to grow Sempervivum tectorum of the Crassulaceae family!

Propagation Methods for Sempervivum tectorum of the Crassulaceae Family

1. Cuttings: Sempervivum tectorum is generally propagated by cuttings taken from small offsets. These can be placed in sandy soil. After inserting, keep the soil slightly moist. After 2-3 weeks, once roots have formed beneath the small leaf rosette, pot them up directly.

2. Sowing: Sow at around 20°C, and germination occurs in about 10-15 days. Although the seedlings grow slowly, you can obtain a large number of seedlings at once.

3. Leaf cuttings: The survival rate of leaf cuttings is low, so it is rarely used. However, if the leaves have already partially turned to water, you can still give it a try.

4. Tissue culture: For this high-tech method of tissue culturing Sempervivum tectorum of the Crassulaceae family, those with the conditions and interest can give it a try.

How to Grow Sempervivum tectorum of the Crassulaceae Family

1. Soil: The soil in the pot should be fertile, loose, breathable, and well-draining. It is best to use half leaf mold or peat moss and half coarse sand or vermiculite, with a small amount of bone meal or other calcium material mixed in evenly. After newly planting, water as little as possible and keep the soil semi-dry to help the root system recover.

2. Temperature: Sempervivum tectorum likes a semi-shaded, warm environment. Around 25°C is suitable for daily growth. In winter, daytime temperatures above 15°C are sufficient, and as long as nighttime temperatures do not drop below 5°C, the plant can continue to grow, can be watered normally, and can be fertilized appropriately. If watering is controlled to induce dormancy, it can also tolerate temperatures as low as 0°C. Sempervivum is not heat-tolerant. After May, the plant's growth gradually stops and it enters summer dormancy. At home, it can be placed under a corridor or on the inner side of a balcony where there is no direct sunlight, good ventilation, and no rain exposure. Control watering and stop fertilizing to avoid plant rot caused by stuffiness, humidity, and waterlogged soil.

3. Light: During high summer temperatures and cold winter temperatures, the plant is in a dormant state. The main growing season is in the cooler spring and autumn seasons. During the growing season, it requires ample sunlight. If light is insufficient, the plant's shape will become loose and not compact, affecting its ornamental value. Plants grown in sufficient light have thick, plump leaves, a compact shape, and beautiful leaf color.

4. Watering: Watering should follow the principle of "don't water if not dry, water thoroughly if you do." Avoid waterlogging that causes root rot, but do not let it become too dry either, otherwise the plant will grow slowly, turn yellow, or even die. In summer, the plant evaporates heavily, so pay attention to watering more. If the leaves lack water, they will appear withered, so mist the leaves regularly to keep them moist. However, be sure to avoid water accumulating in the pot, otherwise it will cause root rot.

5. Fertilizing: Fertilizing is mainly done with well-rotted dilute liquid fertilizer or a compound fertilizer low in nitrogen and high in phosphorus and potassium, applied once every 20 days. Fertilizing is generally done on a sunny morning or evening. Do not splash the fertilizer solution onto the leaves. Water thoroughly once that evening or the next morning to dilute any residual fertilizer solution in the soil. In winter, place it in a sunny spot indoors. If the nighttime minimum temperature is around 10°C and there is a certain temperature difference between day and night, you can water appropriately and fertilize as needed to keep the plant growing. If such high temperatures cannot be maintained, control watering, keep the potting soil dry, and stop fertilizing to induce dormancy. It can also tolerate temperatures as low as 5°C, and some varieties can even tolerate temperatures as low as 0°C.

6. Propagation: Sempervivum tectorum is propagated by cuttings, which are placed in sandy soil. After inserting, keep the soil slightly moist. After 2-3 weeks, once roots have formed beneath the small leaf rosette, pot them up directly. Leaf cuttings have a low survival rate, so they are rarely used. The second method is sowing. At around 20°C, germination occurs in 10-15 days. Although the seedlings grow slowly, you can obtain a large number of seedlings at once.

7. Repotting: It is best to repot once a year, in spring or autumn. Take the opportunity when repotting to trim the root system, removing dead and old roots. The soil in the pot should be loose, breathable, and fertile. Still use half leaf mold or peat moss and half coarse sand or vermiculite, mixed with a small amount of bone meal or other calcium material, and use after mixing evenly. Since the soil is moist, newly planted specimens do not need much water. Keep the soil semi-dry to help the root system recover.

Precautions for Sempervivum tectorum of the Crassulaceae Family

1. When growing Sempervivum tectorum, watering should follow the principle of "don't water if not dry, water thoroughly if you do." Watering should be done in moderation. Avoid long-term waterlogging that causes root rot, and also prevent excessive drought caused by not watering for a long time.

2. During high summer temperatures, mist the leaves frequently while keeping the environment moist.

3. Newly planted specimens do not need much water. Keeping the soil semi-dry helps the root system recover.

4. Sempervivum tectorum will bloom. The leaves grow in a rosette arrangement, are long-elliptic to obovate, with sharply pointed tips. The inflorescence is a cyme; the small flowers are pale rose-red, and the fruit is a follicle. The flowering period is from June to July.