Eryngium

The genus Eryngium consists of 230 species of herbaceous perennial taproot plants. These plants have a strong stem and prickly whole or pinnate leaves; spines are even present on the bracts around the inflorescences. The flowers are small, in glabrous blue-blue inflorescences surrounded by prickly wrapper leaves. The color of flowers usually does not change for a long time, and therefore eryngium is used in dry bouquets. Eryngium agavifolium is a species up to 2 m tall. The leaves on the stems are prickly, and the succulent basal ones are collected in a rosette. The leaves of the wrapper of green baskets are light, greenish. Eryngium alpinum - the Italians call it the "Alpine queen" - is a stable species with a height of 60-70 cm; its head inflorescence is initially spherical, later almost cylindrical in shape; blooms in July-August. The leaves are toothed, divided, green-blue, basal prickly and heart-shaped. Eryngium amethystinum - a species with a height of 70-100 cm. It has egg-shaped flower heads of intense blue color, blooming until October. The basal leaves are oblong, dissected and prickly. Eryngium bourgatii is a stable species with a height of 50 cm with three-lobed grayish-white leaves and silvery head inflorescences. Eryngium bromeliifolium is a delicate species up to 1.20 m tall with elongated fragile toothed leaves and light green inflorescences. Eryngium maritinum - a stable species with a height of 40-50 cm forms hemispherical dense bushes. The heads are spherical, steel-blue in color, blooming in July.

The genus Eryngium consists of 230 species of herbaceous perennial taproot plants. These plants have a strong stem and prickly whole or pinnate leaves; spines are even present on the bracts around the inflorescences. The flowers are small, in glabrous blue-blue inflorescences surrounded by prickly wrapper leaves. The color of flowers usually does not change for a long time, and therefore eryngium is used in dry bouquets.

Eryngium agavifolium is a species up to 2 m tall. The leaves on the stems are prickly, and the succulent basal ones are collected in a rosette. The leaves of the wrapper of green baskets are light, greenish.

Eryngium alpinum - the Italians call it the "Alpine queen" - is a stable species with a height of 60-70 cm; its head inflorescence is initially spherical, later almost cylindrical in shape; blooms in July-August. The leaves are toothed, divided, green-blue, basal prickly and heart-shaped.

Eryngium amethystinum - a species with a height of 70-100 cm. It has egg-shaped flower heads of intense blue color, blooming until October. The basal leaves are oblong, dissected and prickly.

Eryngium bourgatii is a stable species with a height of 50 cm with three-lobed grayish-white leaves and silvery head inflorescences.

Eryngium bromeliifolium is a delicate species up to 1.20 m tall with elongated fragile toothed leaves and light green inflorescences.

Eryngium maritinum - a stable species with a height of 40-50 cm forms hemispherical dense bushes. The heads are spherical, steel-blue in color, blooming in July.

Cultivation

Eryngium is used in gardens in borders and group plantings in mixborders, for cutting, especially for winter bouquets. The ground should be light, sandy, and drained. Alpine blueberry prefers acidic soil. Plant in a permanent place in the ground in autumn or spring. The distance between plants is from 30 cm to 1 m and depends on the degree of plant development. Tall species require supports. After flowering, the peduncles are cut to the root. Adult plants do not tolerate transplanting well.

Location

All types of bluehead prefer a place in the open sun.

Temperature

Blueberry agave and bromeliad can only be grown in mild, warm climates. The rest are resistant to both high and low air temperatures.

Watering

Plants are drought-resistant and do not tolerate high humidity. Water a little.

Reproduction

Propagate by sowing seeds in spring, in containers with loose and poorly fertilized soil or directly in the open ground. From the containers, the grown seedlings are transplanted into cups, and then in the fall or next spring they are finally planted. You can use root cuttings for propagation by planting them in a mixture of peat and agroperlite under glass. Immediately after the development of the stem and leaves, seedlings are placed in the open ground in a protected place. Alpine bluebottle can also be propagated by dividing the bush in the spring, immediately planting the resulting parts on a permanent planting site.

Propagate by sowing seeds in spring, in containers with loose and poorly fertilized soil or directly in the open ground. From the containers, the grown seedlings are transplanted into cups, and then in the fall or next spring they are finally planted. You can use root cuttings for propagation by planting them in a mixture of peat and agroperlite under glass. Immediately after the development of the stem and leaves, seedlings are placed in the open ground in a protected place.

Alpine bluebottle can also be propagated by dividing the bush in the spring, immediately planting the resulting parts on a permanent planting site.

Diseases

Eryngium is rarely exposed to serious diseases and pest attacks when it is impossible to do without chemical treatment. Sometimes there are spots on the leaves and rotting peduncles. It is recommended to remove the affected parts or the entire plant.

Acquisition

Seeds and seedlings are purchased in flower nurseries and gardening centers that offer a wide range of plants.