关于“友谊如花”的英语作文写作素材，可参考以下分类整理：

一、比喻手法类

1. Friendship is like a flower that blossoms with understanding and grows stronger with time.（友谊就像一朵随着理解绽放并随时间愈发坚强的花。）

2. Just as a flower needs soil and sunlight to grow, friendship thrives on mutual respect and care.（正如花朵需要土壤和阳光才能生长，友谊也依赖相互尊重与关怀而繁荣。）

3. True friendship is like a perennial flower, enduring through seasons and weather changes.（真正的友谊就像常青花，经得起四季更迭的考验。）

二、品质升华类

1. Friendship is the fragrance that guides us to a world of fresh perspectives and endless possibilities.（友谊如同一缕芬芳，引领我们走向充满新视角与无限可能的世界。）

2. In the garden of life, friendship is the rarest flower that never fades, even in the harshest of circumstances.（在人生的花园里，友谊是最稀有且永不凋零的花朵，即便在困境中亦能保持生机。）

3. It's not the grandeur of the flower that matters, but the way it connects souls, much like a flower's ability to inspire and uplift.（重要的不是花朵的华丽，而它连接灵魂的能力，正如花朵能鼓舞人心、提升精神。）

三、哲理启示类

1. Just as a flower starts from a seed, so does friendship begin with a single act of kindness.（正如花朵从种子萌发，友谊也始于一个善举。）

2. Friendship teaches us that the best flowers are those that come in shades of gray, showing resilience in adversity.（友谊教会我们，最坚韧的花朵往往能在逆境中绽放出别样的光彩。）

3. In the end, friendship is like a flower that transcends time, leaving a lasting impression on our hearts.（最终，友谊如同一朵跨越时空的花朵，在我们心中留下永恒的印记。）

这些句子可用于作文的开头、结尾或段落中，通过比喻、品质升华或哲理思考，将友谊与花朵的意象巧妙结合，提升文章的感染力与深度。