Some of my best ideas, resources, and references come from the following catalogs.
I have listed a few to guide you along. I prefer catalogs that suggest planting zones and have good descriptions and sometimes a guarantee. And, possibly, they might have someone you can talk to along the way if you have a question. Some companies are very good about this.
www.Burpee.com (Warminister, PA )
www.seedsofchange.com (Santa Fe, NM - 100% Certified Organic seeds)
Johnny's Selected Seeds, 955 Benton Ave, Winslow, Maine 04901 www.Johnnyseeds.com/catalog/index.html
www.jungseed.com (Randolph, WI)
www.pinetreeseeds.com (Gloucester, ME)
www.parkseed.com (Greenwood, SC)
www.rareseeds.com Mansfield, MO)
www.waysidegardens.com (Hodges, SC)
www.territorial-seed.com (Cottage Grove, OR)
www.waltersgarden.com (Zeeland, MI)
www.rootsrhizomes.com (Randolph, WI)
www.whiteflowerfarm.com Litchfield, CT)
www.shepherdseeds.com (Torrington, CT)
www.kvb.com (gotta ck this one out)
www.gardencityseeds.com (Hamilton, MT )
www.thompson-morgan.com (Jackson, NJ)
www.dutchbulbs.com (Babylon, NY)
www.SEEDSofDISTINCTION.com (Toronto, ON)
www.gurneys.com (Yankton, SD)
www.seymourseedusa.com (Randolph, WI)
www.wildseedfarms.com (great wildflower selection for the all areas of the country Fredericksburg,TX)
www.henryfields.com (Shenandoah, IO) (castor beans)
www.mzbulb.com (McClure and Zimmerman - Friesland, WI)
www.totallytomato.com (tomatoes - Fort Meyers, FL)
www.plantdelights.com (located in Raleigh, NC)
www.jacksonandperkins.com (roses - Medford, OR)
www.dutchbulbs.com (bulbs - Babylon, NY)
www.starkbros.com (Louisiana, MO)
www.dutchgardens.com Lakewood, NJ)
www.eBurgess.com (Bloomington, IL)
www.peterpauls.com (carnivorous - Canandaigua, NY)
www.daylilyworld.com (daylilies - Sanford, FL)
www.homesteadfarms.com (hostas - Owensville, MO)