Sempervivum – Evergreens, are a genus of 30 accepted species of perennials of short stems, succulents or succulents of the family Crassulaceas, which grow in rosette.
They are original plants of the Canary Islands (Spain), although coming from tropical zones and by extension in great mountainous zones of Europe, this is, Iberian Peninsula, Pyrenees, the Alps, the Carpathians, the Balkans, the Caucasus.
They are called Sempervivum or everlasting, because being perennial plants, they keep their leaves in winter and are quite resistant to difficult conditions.
The most recognized species of evergreens are Sempervivum arachnoideum or spider everlasting, Sempervivum tectorum or Greater Everlasting, Sempervivum calcaratum, Sempervivum grandiflorum, Sempervivum montanum, among others.
Description of Sempervivum also known as Houseleek
They are plants that form a fleshy rosette with oblong hairs and leaves with touches of purple or reddish colors.
Its water storage capacity in its leaves, allows them to live in sunny rocky places and in alpine areas.
The Sempervivum, or Siemprevivas, are succulent plants that are very easy to grow and generous to make micro gardens or varied compositions, in small containers.
There are many varieties of evergreens and all are distinguished by having a central leaf rosette, which is opening with branches, which are emerging new suckers.
The flowers of the Houseleek plant.
They are flowering plants . In some varieties, pink-hued florets may emerge from the stem, although other varieties generate many stems that expand the plant and give the central rosette a larger size.
After flowering, it is better to cut the flower stem from the base and this way we will be able to regenerate the plant to grow more.
The flowers can have different colors, white, yellow, pink, reddish and appear at the end of a long peduncle. They bloom in summer.
After flowering, the plant dies, generating many new shoots, which will give continuity to the plant.
How to care for the Sempervivum – Siemprevivas. Substrate and irrigation.
To grow the Evergreens, we will use pots or planters with not too much soil.
The houseleek endure well with little water and also withstand the cold outside.
Irrigation in summer, may be infrequent, , depending on the intensity of the ambient heat. In winter, suppress watering completely.
In these Sempervivum ( Houseleek), it is better to have water shortage, than excess. Excess moisture causes root rot and fungal diseases.
They do not require a fertilisers
It is essential that they have good drainage.
We will use substratum for succulent plants or cacti, with a good mix of sand that makes the everlasting drained correctly.
If we are going to transplant the evergreen, we will remove it from its pot and plant it in a new container. The transplant is best done in the spring or in the fall.
It would be good and advisable to place a quarry of gravel. They can be kept outside, in rockery plantations or indoors in low and wide pots.
Sempervivum – Houseleek , need a good exposure to the sun and are able to resist drought and cold.
They are not very demanding plants with the substrate, but better to be limestone and as always, well drained.
Irrigations will be moderate since this plant withstands drought well. It will not be necessary special fertilisers although it is good to renew the substrate every 2 years.
How to multiply the Sempervivum – Siemprevivas.
The Sempervivum – , multiply from seeds or, better yet, separating the buds .
When we transplant the Evergreens, some buds are usually broken. We will transplant these buds with their roots, so we will be able to reproduce them.
Then we will put them in special substrate for cactus, we press the fertilized soil and burying the roots in the ground.
They are resistant plants and are not usually attacked by pests and diseases.
The most known species of sempervivum
Everlasting spider. They receive this name, because of the typical characteristic of this species because of the fuzz or villus, which in the form of a spider’s web grows around the rosette of leaves of the plant.
These villi can cover almost the entire plant. This plant has been very hybridized, finding many varieties today.
This villus forms in the center of the rosette, which is thrown outward as the leaves grow. It is a kind of protection of the plant.
In open terrain, the plant releases suckers that end up colonizing the entire land, if conditions permit. It grows very well in pebbles or stony soils.
They flower in summer, although their first flowering is late.
It is very simple in your needs. It does not need periodic irrigations, it withstands the cold well and admits any substrate, however poor it may be. They are very rustic in terms of climate and soil richness.
Of course, it needs good sun exposure and good drainage.
To multiply the Arachnoideum evergrey, the most useful thing is to take advantage of the division of buds of the mother plant.
Acting with care and making clean cuts. The best time is the vegetative rest in winter.
Always greater life. Other common names are, Jupiter’s Beard, Consolva, Cats Artichoke, Jupiter Beards.
This species of Sempervivum – Everlasting, has its origin in the European mountainous areas, Alps, Pyrenees, Apennines, Balkans. In the Iberian Peninsula it is very widespread.
It is a crasa or succulent plant, which forms rosettes, about 15 to 30 cm wide and 20 to 30 high.
The leaves are very green and the tips of these are purple, being the underside of the leaves whitish.
The flowering is in the form of flowers of pink or reddish color with straight stems and of 30 to 50 cm of height. It blooms in summer.
They go very well, like almost all the Evergreens, in seedlings and pots.
They are very rustic in terms of care. They need full sun, they resist frost and cold and the substrate can be poor.
They resist drought times well and require little irrigation.
To multiply them, the easiest thing is to separate the buds that are born to the mother plant.
This Sempervivum – Siemprevivas, commonly called Siempreviva nails of women.
It is a small plant, perennial and attractive for its symmetrical rosettes, elongated leaves.
They are mostly green and the tips of the leaves are purple, both the beam and the underside of the leaves.
It is usually about 8 cm in height and about 8 to 12 cm in diameter.
They are flowering plants unique in their life and it is produced after long years of waiting.
The flowers are star-shaped, with different colors, yellow, reddish and pink, this being the most common.
They are very easy to grow and keep healthy plants for this we must give them good light, full sun and good ventilation.
It can withstand cold climates and high temperatures. The ideal temperature for it to develop properly is between 20 and 30º C.
It feeds on undemanding substrates, but they must be permeable with sand and small rocks of various sizes.
They require little irrigation and when we water the substrate must be dry. Do not puddle and must have good drainage.
To reproduce the woman’s fingernail, also separate the bud from the mother plant and root them in another flowerpot.