The unusual and immensely pretty Mirabilis Jalapa opens its gorgeous flowers in mid-afternoon on sunny days in the height of summer - only to close them again at night, hence one of its common names \'The Four O\'Clock Plant\'. Incredibly, each plant produces its flowers in a mix of colours - from deep-magenta, to pure-white, bicolour, and even bright-yellow - it\'s no wonder its called the \'Marvel of Peru\'! Plant this beauty in beds and borders, and it will form a neat, bushy shrub that will grow to about 1m (3ft) tall.