Kids Gardening Projects

Question

Can you give me some ideas for a project for kids 7-12 yrs old? This ‘workshop’ will be 1-2 hrs long, 6-12 kids inside a greenhouse on tables. I need to use fairly inexpensive materials. Have available all kinds of plants-greenhouse and nursery. Past projects have included: moss garden, herbs, built a birdhouse.

Answer 1

You could try a "grocery store garden". You can pot up things like pineapple tops, avocado seeds, potatoes, sweet potatoes and carrot tops, which will all grow for them. Here is information on these:
https://www.gardeningknowhow.com/special/children/planting-pineapple-tops.htm
https://www.gardeningknowhow.com/special/children/sprouting-avocado-pits-how-to-root-an-avocado-seed.htm
https://www.gardeningknowhow.com/edible/vegetables/sweet-potato/grow-sweet-potato-plant.htm
https://www.gardeningknowhow.com/edible/vegetables/potato/how-to-grow-potatoes-when-to-plant-potatoes.htm
http://www.weekendgardener.net/blog/2007/09/grow-carrot-top.htm

I don't know if you have enough time for this one, but you could do a potato bonsai. You chit the potatoes (chitting is what happens when a potato sprouts before planted) and then the kids can trim them like bonsai trees:
https://www.gardeningknowhow.com/edible/vegetables/potato/sprouting-seed-potatoes.htm

You might also build a mason bee house (to attract pollinators to the garden) or a bird nester (which provides materials for birds to build their nests): http://www.nwf.org/Get-Outside/Outdoor-Activities/Garden-for-Wildlife/Gardening-Tips/Build-a-Bee-House.aspx?CFID=28625570&CFTOKEN=64ada46852abd4d-4CFC037F-5056-A868-A085CD4C912568A8