关于前院的树，请指教

amybear

前院有棵树很不好看，希望能去掉重新栽一棵。不知什么时候栽好呢？

找了2种树，还没去查过，好不好养，长得快不快，请有经验的朋友指点。谢谢了
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pring Snow Crabapple (Malus x 'Spring Snow')

5 V; n; F7 W% z+ SThis is an attractive tree that is covered with very fragrant, white flowers in the spring. It has an oval form, glossy green foliage, and produces little to no fruit.
       
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Thunderchild Crabapple (Malus x 'Thunderchild')

  L( L: I. X8 }& b# U% [This tree is an outstanding flowering crabapple with an oval crown and leaves that turn from greenish purple to deep purple during the growing season. It has delicate rose-pink flowers early in the spring and very small fruit that is dark red. It is resistant to fireblight.
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ceramistpalace

Crabapples are easy trees for the climate of AB, but tons of fruits will be produced and scattered all over the yard. Be prepared for clearing of them if you want your frontyard look neat and tidy.