Hedgehogs can be divided into single row and double row according to planting methods. In China, in order to get quick results, zigzag double-row mode is generally adopted. Some landscape architects advocate single-row pattern on the grounds that single-row pattern is beneficial to the balanced growth of plants, while double-row pattern is not only unfavorable to balanced growth, but also expensive and easy to breed weeds.
Hedgehogs can be divided into natural type and integral type according to the maintenance and management methods. The former usually only needs a small amount of pruning to adjust the growth potential, while the latter needs regular shaping and pruning to maintain the body shape and appearance. In the same scenic spot, natural hedges and whole hedges can form completely different landscapes, so we must make good use of them.
Hedgehogs can be divided into hedgerows, colored leaf hedgerows, flower hedgerows, fruit hedgerows and thorn hedgerows according to plant species and ornamental characteristics, and must be carefully selected and planned according to landscape themes and environmental conditions. For example, both hedges are conifers, and some leaves have the texture of golden velvet, giving people a peaceful, gentle and comfortable feeling; Some leaves are dark green in color and hard in texture, forming a serious and quiet atmosphere; There are many kinds of evergreen broad-leaved trees, each with different functions. Another example is the flower hedge, which is not only different in color and flowering period, but also different in size, shape and fragrance, forming different scenery with different emotional appeal; As for fruit hedges, apart from their different sizes, shapes and colors, they can also attract different kinds of birds.
As a hedge tree species, it must have the habits of strong germination, strong branching, strong callus, strong pruning resistance, strong shade resistance and less pests and diseases. The planting method of hedgerows is to dig deep in the planned planting area, apply base fertilizer, and then plant them separately according to the expected height and type of hedgerows, with the spacing of about 20, 40 and 80 cm. After planting, fully irrigate and trim in time.
The principle of hedge maintenance and pruning is: for the whole hedge, the lower branches and leaves should be exposed to sunlight as much as possible to avoid withering due to excessive shading, so the lower part of the crown should be wide at the top and narrow at the bottom, and it is usually better to adopt a regular trapezoid or steamed bread shape. For natural hedgerows, corresponding measures must be taken to adjust the tree potential, renew and rejuvenate according to the habits of different tree species and local climate.