你还知道什么花是在秋天开的吗为什么（你还知道什么花是在秋天开的吗为什么用英语）-花百科-策花网

1、你还知道什么花是在秋天开的吗为什么

秋天盛开的迷人花卉

秋天，当许多花卉已经凋谢时，一些特定的花卉却在此时绽放出迷人的色彩。这些花卉不仅增添了秋日的景致，也为花园和景观增添了活力。

1. 菊花

菊花是秋天最具代表性的花卉之一。它们以其多样化的颜色、形状和大小而闻名。菊花耐寒，在凉爽的天气中长得很好。它们是花束和布置的绝佳选择。

2. 矢车菊

矢车菊是一种高大的植物，开着蓝色的管状花。它们的叶子呈披针形，边缘有锯齿。矢车菊喜欢阳光充足、排水良好的土壤。

3. 金盏花

金盏花是一种易于种植的开花植物。它们开着黄色或橙色的花，花心呈棕色。金盏花耐高温和干旱，是花园和容器种植的理想选择。

4. 绣球花

绣球花是一种灌木，开着球形的头状花序。它们的叶子呈卵形，边缘有锯齿。绣球花喜欢荫凉、湿润、酸性的土壤。

5. 山茶花

山茶花是一种常绿灌木，开着大而艳丽的花朵。它们的叶子呈椭圆形，边缘有锯齿。山茶花喜欢排水良好的酸性土壤。

为什么这些花在秋天开花？

这些花卉在秋天开花的生理原因是：

光周期：这些花卉对黑暗反应敏感，需要较短的光周期才能开花。当秋天的日照时间减少时，它们收到开花的信号。

温度：凉爽的秋季温度也有助于这些花卉开花。许多花卉在较冷的天气中表现最佳。

养分积累：夏季，这些植物会积累养分。当秋季到来时，这些养分被用来开花。

2、你还知道什么花是在秋天开的吗为什么用英语

What Other Flowers Bloom in Autumn?

Autumn is often associated with falling leaves and chilly temperatures, but there are many flowers that continue to bloom during this season. These flowers often have adaptations that help them survive the cooler weather and shorter days.

1. Chrysanthemums

Chrysanthemums are a classic fall flower, known for their bright colors and long-lasting blooms. They are relatively easy to grow and can be found in a variety of colors, including yellow, red, orange, and purple.

2. Asters

Asters are another popular fall flower, known for their small, daisy-like blooms. They are available in a wide range of colors, including blue, purple, pink, and white. Asters are also known for attracting butterflies and other pollinators.

3. Dahlias

Dahlias are a dramatic addition to any fall garden, with their large, showy blooms. They come in a wide variety of colors and shapes, and can reach up to 12 inches in diameter. Dahlias prefer full sun and well-drained soil.

4. Zinnias

Zinnias are a vibrant and easy-to-grow flower that blooms throughout the summer and into fall. They are known for their bright, cheerful colors and long-lasting blooms. Zinnias attract butterflies and other pollinators, and are a good choice for cut flowers.

5. Marigolds

Marigolds are a popular fall flower that is known for its bright orange or yellow blooms. They are relatively easy to grow and can tolerate a variety of soil conditions. Marigolds are also known for their pest-repellent properties, which can help keep insects away from other plants in the garden.