Article in English: Hostas aren't overly sensitive to cold, so you can plant them as soon as the ground is warm enough to work in the spring. Spring and late summer are the ideal times to plant hostas, because they are in active growth phases and will take root easily. If you're going to plant hostas in late summer, do it at least six weeks before the first frost. Hostas are shade-tolerant plants that require minimal amounts of sunlight – though they also won’t thrive in deep shade. The ideal location is somewhere protected from strong winds and hail, that’s shaded between the hours of noon and 4 p.m., and that receives some filtered sunlight.   You can protect hostas from sun, wind, and hail by planting them under established trees. Make sure you don’t plant them too close to the roots, however, or the hostas will have to compete for nutrients. Hosta’s shade tolerance depends on the type. As a rule, those with yellow leaves can survive more sunlight than hostas with green, blue, or white leaves. Blue hostas need the most protection from the sun.  Hostas will also thrive near outer building corners that still get some mild sun exposure. In the area where you want to plant the hostas, till the ground to a depth of 8 inches (20 cm) using a manual tiller, rototiller, or hoe. Amend the soil with organic matter that will loosen the soil, discourage rodents, and acidify the soil slightly.  Good organic matter for hostas includes aged manure or compost, peat moss, and leaf mulch. The ideal pH for hostas is between 6 and 6.5. Hostas don’t need a large space for planting. If you're planting individual hostas, the hole only needs to be as wide as the root system.

Summary in Vietnamese:
Chờ thời điểm thuận lợi. Chọn vị trí có bóng râm thích hợp. Điều chỉnh và xới đất.