Instructables
Picture of K-cup sead starters
My mother came up with this fantastic idea to reuse her K-cups instead of just throwing them out. (and goodness knows we use enough of them around here.
 
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Step 2: Preparation

Once the cup is cool you can begin to take it appart. start by taking the foil off the top. We use a spoon to remove the grounds and put the on a piece of news paper. Once the grounds are out, remove the filter lining, then rinse the cup.
We save the grounds and the filters and put them in the garden. The filters are biodegradable and the grinds help to keep cats out of the gardens.

Step 3: Growing

Next we fill up the cups with dirt and put a few seeds in each. water them as nessary. (we mist them at first so as not to disturb the seeds by moving them around too much.) tooth picks and popsickle sticks acan be places into the outer cups if you put them in a try like we have, and then covered with a lid or with plastic wrap to keep the moisture in. Also if they are not in a trey you can place other empty cups upside down over them to keep in the moisture.
As the plants grow, the plastic wrap would need to be removed so that thye can continue to grow higher.  
Labellavive6 months ago

I'm so glad you thought of this! I just hated throwing them out and so I bought the re-useable cups and just save the coffee, but my husband loves the cups and I will start to love them even more!! thanks

Marisa8081 year ago
Love this idea! Been feeling guilty throwing these in the trash, I normally save the grounds but I didn't know the filters could go in the compost. Thanks for this!
jeanniedrop2 years ago
I've been putting off getting one of these meachines because the K-cups are not recylclable here but this is a great idea to reuse these things.