A spell components pouch is all of 5 gp (
Link), and is assumed to contain any focus and material component that:
a) is not too big to fit in a pouch (focuses only) (so a divination counters for Find the Path are in there, but the staff for Spellstaff is not)
b) does not have a specific cost (so spiders for Spider Climb are in there, but the diamond dust for Restoration is not)
c) not a holy symbol (not really applicable to a Druid - the Holly and Mistletoe have an expense line of -, so you have it free of charge, but included for completeness)
Expensive material components can be placed in your Spell Component Pouch (and are thus readily available), but must be purchased and tracked.