Explanation:

Seasonal flowering annuals are quick growing herbaceous plants which complete their life cycle in one season i.e. 3-6 months. They tend to produce some of the most beautiful, attractive, colourful flowers while they last.                                                                                                                                        Zinnia: A popular garden annual various in height from very dwarf to tall types. Flowers are of different forms and various colours such as Pink, Orange, white, Crimson, Purple, golden yellow etc
Cleome: A tall spiny plant with large clusters of flowers with long prominent stamens. The flowers are scented & may be pink, light purple, rose or white in colour.
Salvia: The plants may be tall or dwarf and bushy. Tubular bright scarlet flowers are born above foliage on top.