here are five blue succulents with pictures:
Echeveria is a succulent, perennial plant, very widespread because it is robust and quite decorative.
It produces rosettes of leaves, very compact and fleshy, which differ from each other in the color that changes according to the species: the most common are green-gray or light green but it is possible to find a little all the shades of green and some reddish shades.
The inflorescences sprout in the axil of the leaves or on lateral branches. The flowers, red or yellow, are bell-shaped and gathered in spikes. They are easy to grow plants, often used to form borders and embellish rock gardens.
The stem tends to wood as it ages the plant; remember that they are plants that live many years.
The genus Pachyveria includes several species of succulent perennial plants of the Crassulaceae family appreciated in our latitudes for the beauty of the foliage and for its resistance to adversity.
It is a hybrid plant whose leaves, although varying in size and apex, are all arranged to form dense rosettes from whose center and from the leaf intersections during the flowering period, particular inflorescences appear, composed of small tubular flowers of yellow, orange-yellow or orange-colored flowers. deep pink.
Exhibition: like aeonium and other types of succulent plants, it loves bright and sunny places. In regions characterized by very hot summers, the plant should be sheltered from direct sunlight with a shade cloth only in the hottest hours of the day. Even if it tolerates temperatures below 7 ° C, it is advisable to place it in a place not exposed to strong temperature changes. The specimens grown overgrown during the winter must be sheltered from the frost of winter.
Soil: Prefers soft soil mixed with sand and well-drained. The optimal cultivation substrate must be loose, porous, and mixed with coarse sand to facilitate the drainage of the water.
Watering: it must be regularly watered in the period of the vegetative restart, (May-October), however avoiding to soak the soil and waiting for it to be completely dry. Irrigation must be reduced in autumn and completely suspended in winter.
Fertilization: from the vegetative restart, give specific fertilizer for succulent plants at least once a month. The first fertilization of the year should be done at the second irrigation of Pachyveria and by administering a product with a high phosphorus content (mineral superphosphate-18 at a dose of 1 gram per liter) a fertilizer useful to stimulate the production of flowers.
Subsequently and on average, once a month, a mixed fertilizer consisting of low nitrogen content and higher phosphorus (P) and potassium (K) content is administered, such as NPK 6-18-36 or 5-15 -30 with the addition of all the microelements useful for adequate growth and normal development of Pachyveria. The fertilizer must be diluted in the irrigating water at a dose of 1-2 grams per liter, as indicated on the package.
The genus Aeonium belongs to the large family of Crassulaceae. Their name derives from the Greek term aiònios, which means eternal, immortal: a name that has earned both for its robustness and for its affinity with the genus Sempervivum. In fact, Aeoniums are extremely robust plants even by the standards of the large succulent family; in addition to prolonged periods of drought, in fact, they also manage to face short periods of intense cold.
They are perennials: sometimes they take the form of small shrubs, others of herbaceous plants. The fleshy and swollen leaves form symmetrical rosettes and have colors that can vary from light green to dark purple, up to black, depending on the species and exposure to the sun. It is however a very heterogeneous genus: the shape of the rosettes, the size of the plants, the colors vary according to the species observed. The flowers, a sign of the full maturation of the plant, can arrive as early as the second year of life (in the smallest species) as well as after four or five years (in the shrub species). The individual flowers are very small, with just 1 or 1.5 cm in diameter. However, they are gathered in corymbose inflorescences which in some species can also be very showy. They have colors that vary from white to yellow, to pink. The overall effect becomes very suggestive, even more for those varieties of Aeonium that have light flowers but very dark foliage. It is therefore a highly appreciated plant in the decorative field. Often different species are placed side by side in the same vase, obtaining really pleasant contrasting effects both in shapes and colors.
Cultivation: They require an environment in full sun and well ventilated. It loves high temperatures, but it also resists short periods of cold well as long as not below 0 ° C.
Curiosity: Plants of the genus Aeonium are very efficient in the purification of environments and very robust. For these characteristics, they are among the plants studied by NASA in view of future uses within spaceships.
Also known as Agave ‘Artichoke’ is a beautiful compact Agave with symmetrical rosettes that resemble those of an artichoke. It produces suckers from the base.
Although they grow slowly they reach a diameter of 90 cm, and a height of 60 cm depending on the subspecies. The variety is very interesting: Agave Parryi var Truncata with more core and compact sheets.
The rosettes are symmetrical and are formed by compact gray/silvery leaves tending to blue which resemble petals. Along the margins, it has small, small reddish-brown teeth set apart and a terminal spine at the tip.
When it blooms, it generates bright yellow and fragrant flowers.
Cultivation: Easy, it is a plant very resistant both to heat and drought. It is perfect for urban and rocky gardens, despite having slow growth it requires very low maintenance. Ensure a soil with good drainage and, in winter even if it is tolerant to cold (-8 ° C dry), it is always better to keep the soil as dry as possible. Throughout the year, guarantee exposure in full sun or, in summer, light shade. As with many plants, where possible, the idea is to let them receive full morning sun and high shade for the rest of the day. In the vegetative period from March to November wet abundantly but only when it is dry.
A. potatorum is a small Agave, which grows solitary, and only over the years, it forms clusters from the base by emitting suckers from the root. It forms a very symmetrical and compact succulent rosette. Its shape makes it attractive to collectors.
However, it is a very polymorphic species and variable variability, the same maximum size can vary from about ten cem to over 50 cm in width or more.
The stems are generally short and have 30 to 80 rosette leaves, slightly fleshy, ovate, oblong, or short lanceolate, but very variable in shape, size, and color. They are about 10 cm wide and 20 to 40 cm long. The leaves are of a beautiful glaucous green color or silvery blue-gray. In the tips, they end with a backbone often twisted or slightly wavy, reddish, or dark brown up to 2 cm long. The short marginal spines are instead reduced to pronounced prominences. The margins are slightly indented.
The flowers sprout in late summer only on mature plants from a raceme and can be up to 3-6 m tall. They have light green flowers tinged with red bracts.
Cultivation: Agave potatorum is relatively easy to grow species, although not as cold-resistant as many of the same genus. I have had some specimens that I have mistakenly treated like the others but they are inexorably rotted. For this reason, at least in my experience, I recommend wintering them at least 5 degrees minimum avoiding frosts. However, the books declare that it is dry resistant up to about -3 ° C).
It requires a bright exposure to remain compact but in summer it does not mind high shade avoiding direct sun. Grow in well-drained soil, and in summer wet abundantly always leaving to dry completely before watering again. In winter leave dry.
Propagation: from seeds or from suckers (although rarely emits before 10 years or more)
Curiosity: agave potatorum is used in Mexico to make “pulque” a Mexican wine. In Sonora (Mexico) the hearts of the plants (central part of the rosettes and base of the leaves) are placed in underground ovens and the resulting fermented juice is distilled to create a spirit called Bacanora.