Buttercup (Latin: Ranunculus).

 Buttercup (Latin: Ranunculus) is a large genus of annual and perennial herbaceous plants in the buttercup family, renowned for its glossy yellow flowers in the wild and lush, multicolored buds in gardens. The scientific name translates as "frog," as many species prefer marshy areas. Important facts about buttercups: Toxicity. Almost all species contain a caustic sap containing protoanemonin. It causes skin irritation and is dangerous to livestock.

Buttercup (Latin: Ranunculus).

 Wild species. The most common in forests and meadows is the acrid buttercup ("night blindness") with its simple, five-petaled flowers. Garden species. The Asian buttercup, better known as ranunculus, is popular in floriculture. Its double inflorescences resemble small roses or peonies. Planting. Garden buttercups are grown from small tubers resembling "goose feet," which are planted in the spring. Care. Plants prefer moderate watering, filtered light, and well-drained soil. Ranunculus tubers are dug up for the winter, as they do not tolerate severe frosts. What exactly are you interested in? If you like, I can:Tell you how to properly plant ranunculus in the garden.

ALDER-LEAFED BARKBERRY. Amelanchier alnifolia (Rosaceae Family).

 GROWING BARKBERRY

 The greatest advantage of the baskberry is its high frost resistance and early ripening of its fruit. The first fruits ripen in late June. The plant produces its first harvest in the third year after planting and continues to bear fruit annually for 40-50 years. It reaches full productivity at 6-8 years of age. It is easy to care for—it grows well and thrives in almost any soil and is highly resistant to diseases and pests.

ALDER-LEAFED BARKBERRY.
Amelanchier alnifolia
(Rosaceae Family).

 GEOGRAPHICAL DISTRIBUTION

 Cultivated varieties of baskberry are descended from the wild form, Amelanchier alnifolia. This genus comprises approximately 25 species, characterized by great diversity and reaching heights from 0.5 m to 15 m. Wild amelanchier grows in the northeastern United States and southwestern Canada. Due to similar climatic conditions, the plant has adapted particularly well to Poland. It can withstand winter temperatures down to -40°C, and the flowers tolerate spring frosts down to -5-7°C.

Feijoa, or Feijoa sellowiana, is a species of evergreen shrub.

 Feijoa has medium-sized, oval leaves, gray-green, glossy above and densely pubescent, silvery below. Beautiful white-pink flowers with numerous red stamens. A single bush yields 2-3 kg when grown indoors. Indoors, select varieties that do not require additional pollination. Feijoa blooms at temperatures between 20-24°C (68-74°F) in late June, and flowering lasts for over a month.

Feijoa

 In 2019, this species was separated into a separate monotypic genus, Feijoa (Feijoa O. Berg), from the genus Acca, to which the plant previously belonged and was known as Acca sellovai (Acca Feijoa). This valuable fruit crop is cultivated in many tropical and subtropical regions of the world.

Kerria (Latin: Kerria) is a deciduous ornamental shrub.

 Kerria (Latin: Kerria) is a deciduous ornamental shrub in the Rosaceae family, represented by only one species: Kerria japonica. Due to its flower shape and bloom time, the plant is often called the "Easter rose." Main plant characteristics: Appearance: The shrub has slender, rod-like shoots of bright green color, which retain their color even in winter. In temperate climates, its height typically reaches about 1–1.5 meters. Flowering: Bright yellow flowers up to 4.5–5 cm in diameter resemble miniature roses or peonies. 

Kerria

 Mass flowering begins in spring (May) and lasts about a month, after which the bush may bloom again during the summer and fall. Popular forms: Simple (natural) - with single five-petaled flowers. Pleniflora (Pleniflora) is the most popular variety with densely double, fluffy golden-yellow inflorescences.