What green seedlings are commonly used in Hebei Expressway? The more detailed, the better. Thanks in advance.

Trees: Sophora japonica, poplar, willow, Fraxinus mandshurica, paulownia, Toona sinensis, Pistacia chinensis, etc.

Shrubs: peach, plum, red rosewood, precious wood, crape myrtle, pearl plum, all kinds of begonia, cherry blossoms, hibiscus flowers, etc.

Hedge: cypress, juniper, Ligustrum lucidum, boxwood, honeysuckle, etc.

In the northern region, freezing injury of some varieties should be considered.