Frequent heavy rain.
The rain has been getting more insistent. Pollen gathers at the edge of puddles:
Tufted Vetch leaves have appeared, so the blue flowers should be obvious soon.
When I see leaves spun together (left) I get very curious. A little investigation revealed the larva of the Red-line Quaker moth - Agrochola lota
Pineapple Mayweed is a daisy. The flowerheads are just short of a petal or two.