Greetings, @corey1! 
As both a fellow Green Witch and a bit of a hoarder myself, I know the feeling. Traveling usually forces me to be selective with what I hold onto, but after a year and half in one location (thanks, pandemic) I’ve built up a collection too.
The space under my kitchen sink is packed with pots of soil and even a bag of last year’s daffodil bulbs that I didn’t get around to planting. Not to mention the drawer with jars and mismatched lids 
Luckily for folks like us, there are loads of possibilities for jars- have you considered using them for Jar Spells? Jars are also wonderful for storage- such as for organizing herbs or spell ingredients (@roxanne shared some wonderful Witchy Jar Labels). For mundane things, I keep my paintbrushes in one jar 
, and pens and pencils in another 
. Not to mention the spare change jar as well! 
Really great for organizing.
Dead flower bulbs are a bit trickier. You could offer them to a deity of plants and the earth (like Gaia) 
, or to a deity representing the cycle of life and death (such as the Horned God) 
. And there’s always composting- a ritual of giving that which has faded to fuel new life to come 
Hope that helped to spark your creativity! Blessed be, Corey 