Flower Garden Gatherings Backgrounds Jelly Roll by Primitive Gatherings for Moda 1241JR. 42 strips 2-1/2" wide. 100% Premium Cotton. Click Here to View all Fabrics in Jelly Roll. To give my garden the foundation it needs to bloom, we’ve used my favorite muslin shades of Tallow, Paper Bag and Pie Crust and created Flower Garden Backgrounds. These shirting-like prints are the sort that I’ll use for years to come, they’re like “heirloom seeds”… or the seeds for my heirlooms and yours.