They are all winter growers. There are both autumn and spring flowering species.

它们均是冬季种植的球根植物，有春花型和秋花型两个主要类型。

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Spring flowering bulbs have in common that they need to be planted some 3 ~ 4 weeks before the frost is in the ground.

春天开花的块茎有一个共性，种植它们要赶在地面出现霜冻前三到四个星期的时候。

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If the ground hasn't frozen yet, plant spring-flowering bulbs such as crocus , daffodils, tulips and hyacinths as soon as possible to beat the odds.

如果泥土还未冻结，抓紧时机种下番红花，水仙，郁金香和风信花的球茎。

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Fruit on the tree during spring bloom stops the growth of flowering shoots.

VOA: special.2009.11.10

The six-month apple season, from spring flowering to the last harvest in late September, brings people flooding into Himachal Pradesh.

BBC: Apple harvest in the Himalayan foothills

Expect to associate the name with a theme song, a slogan, and--in all likelihood--images of women or children running happily through flowering spring meadows.

FORBES: Magazine Article

It should provide a nice contrast to the monocolor that many yards become by summer, once the spring-blooming trees are done flowering.

WSJ: The Inside Stories of This Season's New Plants--WSJ Weekend Gardener