May is a fabulous time to walk, cycle or drive through the mountains to see the early summer wildflowers in the Sierra de Grazalema. Roadside verges, pastures and scrubland turn glorious colours with a varied selection of flowering plants. The springtime rains have ensured a vivid display and many plants compete for space in a hurry to flower and set their seeds before the ground dries out and bakes during the summer months. Hillsides can turn yellow with shrubby Retama, whereas the many meadows are a tapestry of pastel shades brimming with annuals. Many plants from the April wildflowers page still continue to bloom.

Wild flowers adorn every corner with a riot of colour, there are far too many to mention and only being amongst them will you sense the variety. As for the impressive, then the giant fennel lives up to its name with a 2-3 metre stalk! Crambe filiformis has to be the opposite end of the scale with its minute wispy white flowers on delicate strands.

The unusual Blue aphyllanthes has starry flowers amongst a hedgehog dome of rush-like leaves, while the giant squill makes a pyramid of individual blooms which attract some lovely green beetles. The exotic looking Spanish nigella is lovely in bud, flower or seed, with each stage attractive on its own.