Use good quality, well drained soil and make sure there are adequate drain holes.

使用优质，排水良好的土壤，并确保有足够的排水孔。

youdao

Convolvulus cneorum cultivation notes: Convolvulus prefers a well drained soil - flourishing in sandy or chalky soils.

栽培本种要注意的地方：本种喜排水良好的土壤，在砂质或石灰质土壤中生长良好。

youdao

This is an Oriental hybrid and so is slightly more demanding to grow, needing well-drained, but rich, soil to grow well.

这是一品东方杂交品种，所以生长条件要求有点高，排水良好、肥沃的土壤里才长得好。

youdao

The soil should be kept moist but well drained so it does not get too wet.

VOA: special.2010.06.29

For potatoes, the best soil is fertile and well drained,not wet.

VOA: special.2009.03.10