The Seek app won’t ID the species, just says it’s part of the onion family.
I’m not big on purple flowers, probably because of all of the jacaranda trees around. The leaves they drop onto the sidewalk are extremely slippery and a real hazard when I’m running or even walking.
These haven’t attacked me … yet. (Tomorrow’s another day, filled with opportunities!)
We Love The Stars Too Fondly 
Looks like an agapanthus species. Its flowers are more slender and delicate than mine, but the rest matches. Originate from South Africa š
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