LATHYRUS VERNUS (SPRING PEA) 'RAINBOW'

I first posted about Lathyrus vernus in April 2020, a year after I first planted it and now, seven years later, it is still putting on a show.  It remains in place, a neat and beautiful clump of foliage and flowers, not wandering and never growing very big. I can see that a ground cover geranium is encroaching so I'll need to check that out and move the geranium if it is going to cause a problem.  

Lathyrus vernus (spring pea) 'Rainbow'
Mine grows in a situation near the bottom of my garden where it gets partial sun and a moist neutral soil.  According to the RHS Lathyrus vernus, is category H6, which means it is hardy down to -20c, and it has the RHS AGM (Award of Garden Merit).