Middle-aged and elderly friends should pay attention to these things when raising flowers: first, the varieties of flowers should be raised well; second, poisonous flowers should not be raised; and third, work and rest should be combined. Middle-aged and elderly friends should pay attention to these things when raising flowers: first, the varieties of flowers should be raised well; second, poisonous flowers should not be raised; and third, work and rest should be combined. Middle-aged and elderly friends should pay attention to these things when raising flowers: first, the varieties of flowers should be raised well; second, poisonous flowers should not be raised; and third, work and rest should be combined. Middle-aged and elderly friends should pay attention to these things when raising flowers: first, the varieties of flowers should be raised well; second, poisonous flowers should not be raised; and third, work and rest should be combined. Middle-aged and elderly friends should pay attention to these things when raising flowers: first, the varieties of flowers should be raised well; second, poisonous flowers should not be raised; and third, work and rest should be combined.