It is a bit too early for most crocus, but in any case, what’s in your picture is not crocus but rather winter aconite, Eranthis hyemalis, one of the earliest blooming spring bulbs. For the earliest blooming crocuses, look for what’s called snow crocus – they are smaller and paler than the more familiar Dutch crocus, but bloom much earlier and provide welcome relief from spring fever. A few other super-early blooming bulbs you might consider:  Siberian squill (Scilla siberica), snowdrops (Galanthus nivalis), and Iris reticulata.