When is the best time to mow the lawn with crocuses and daffodils in it ?

As a rule, mowing grass strips containing flower bulbs is not started until an average of 6 to 8 weeks after flowering. Grassy areas planted with flower bulbs can be mowed only after all the aerial parts of the flower bulbs have withered back. Some flower bulbs such as Chionodoxa, Scilla and Eranthis propagate by seed, so their seeds should get a chance to mature.