How to create perfect floral arrangements San Francisco floral designer shares secrets you can use at home Tricks of the trade With a name like Erin Rosenow, it’s no wonder she became a floral designter. Fortuitous name aside, we’re obsessed with Rosenow and her eponymous floral-design studio for the beautiful arrangements she makes using everyday objects such as old tomato jars as vases.“I like quirky and vintage-inspired designs,” says Rosenow, who was co-owner of San Francisco flower shop Birch and a floral designer at Fiori before opening her own business. “I don’t think that flowers have to be so pretentious.” Her advice for beginners? “Be sure to use the freshest flowers you can find and practice, practice, practice!”INFO Rosenow Floral (rosenow floral.com or 415/424-7437) Pinterest Keep it simple You don’t need a fancy shop to make designer bouquets and arrangements. A sink, some counter space, and a drawer for tools will do nicely. Rosenow recommends devoting one or two shelves in a kitchen cabinet for storing extra vases, and having a green bin handy for composting clippings.Find tools at floral-supply or craft stores (we like save-on-crafts.com and redrock nursery.com). Your home floral-design studio A checklist of essential tools1. Floral tape 2. Rose stripper3. twine (pictured: Bordeaux baker’s twine; $7 for 60 ft.; raffit.com)4. Lighter (to heat-seal the cut stems of flowers with milky sap)5. Swiss Army Knife6. Wire cutters 7. Pruning shears 8. Rubber bands9. 22-gauge paddle wire10. Sponge11. Florist scissors Simplicity multiplied “I like to have multiple bud vases on hand,” says Rosenow, who snapped up these vintage bottles at a gift shop (similar diffuser bottles $3 each at save-on-crafts.com).“If I need more of a punch with single flowers, I’ll use three of the same bud vases in a row.” Think outside the vase “I like any type of vintage vessel,” says Rosenow, whose vases include flea-market finds like old trophies and milk glass.“It makes your flowers feel so much more personal if they’re sitting in one of your great-grandmother’s old water pitchers.” Support system “It’s helpful to make a grid when you are using a vase that has a wide mouth,” says Rosenow.“You can use either clear cellophane or floral tape to support top-heavy flowers. Just cut the stems and insert in grid openings.” Make a cork coaster Prevent water rings and spills. “Cork tiles from a hardware or craft store make great coasters for underneath vases,” says Rosenow. “Place the vase on top of the cork, trace around the vase bottom, and cut to size.”Attach with small pieces of double-stick foam mounting tape.