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比利时杜鹃(Rhododendron hybridn)是杜鹃花科杜鹃花属的常绿或半落叶灌木。系由皋月杜鹃(R. indicum)、映山红(R. simsii)及毛白杜鹃(R. mucronatum)等反复杂交而成的,是花色和花型最多、最美的一类,因而深受人们青睐。其主要特征是株型矮壮,树冠紧密,分枝呈半开张形,习性娇嫩,怕冻怕晒,生长缓慢。其当年生枝通常呈红色或绿色,且枝条颜色与花色有一定相关性。如红枝对应红花,绿枝对应白、淡红、桃红色或杂色花。一般自然花期在4～5月。要使比利时杜鹃具有较高的商品价值,幼苗期及时进行摘心摘蕾是非常必要和重要的,但在整形过程中应具体情况具体分析,以促使侧枝萌发,形成丰满完整的株型。现略举几例加以剖析。
Rhododendron hybridn is an evergreen or deciduous shrub belonging to the genus Azalea. It is a hybrid of R. indicum, R. simsii and R. mucronatum, and is favored by the people with the most beautiful flowers and the most beautiful flowers. . Its main features are short stature plant type, dense canopy, branches were semi-open shape, delicate habits, fear of fear of the sun, slow growth. Its year branches are usually red or green, and branches color and color have a certain relevance. Such as red branches corresponding safflower, green branches corresponding to white, pink, pink or variegated flowers. General natural flowering in April to May. It is very necessary and important for the Rhododendrons of Belgium to have a high commercial value. It is very necessary and important to take time to pick the buds in seedlings. However, it should be analyzed concretely in the process of shaping to promote the germination of the lateral branches and to form a full and complete plant type. Now a few examples to be analyzed.