In what environment does the butterfly flower grow most advantageously?

Alternative names of the butterfly flower (pansy)
Also known as pansy, Japanese iris, open-throat arrow, orchid grass, flat bamboo, sword grass.
Morphological characteristics of the butterfly flower (pansy)
The butterfly flower is a biennial or perennial herbaceous plant, about 10-40 cm tall. The above-ground stem is relatively thick, upright or slanting, single or branched, and angular. The basal leaves are long ovate or lanceolate with long petioles; the stem leaves are ovate, oblong-round or oblong-lanceolate, with rounded or blunt tips, relatively round bases, and the margins have sparse round serrations or blunt serrations; the upper leaves have relatively long petioles, while the lower ones are shorter.
The flowers are large, about 4-6 cm in diameter, with about 3-10 per stem. As the name pansy implies, a single flower usually has three colors: purple, white, and yellow. The upper petal is deep violet, and the side and lower petals are all tricolor with purple stripes; the inside base of the side petals is densely covered with fine hairs, and the lower petal has a relatively thin spur, 5-8 mm long; the ovary is hairless, the style is short, the base is distinctly geniculate, the stigma is swollen and spherical, with a large stigma opening at the front.
Common varieties of the butterfly flower (pansy)
Colossus: flower diameter 10-12 cm, with colors including red, pink, purple, blue, yellow, and also blue/white and red/yellow bicolor varieties.
Smile: an early-flowering variety, with colors including blue, purple, red, yellow, white, and rose red.
Imperial: plant height 15-18 cm, an early-flowering variety, flower diameter 7-9 cm, among which the purple/white bicolor variety is the most famous.
The flower language of the butterfly flower (pansy)
Red pansy: a beautiful red flower, its flower language is "worry, longing", and its attribute is fire.
Yellow pansy: a pansy with yellow petals, its flower language is "mixed joy and sorrow", and its attribute is earth.
Purple pansy: a pansy with purple petals, its flower language is "silence" and "unconditional love", and its attribute is dark.
Large pansy: bondage.
Common flower language of pansy: contemplation, happiness, please miss me.