2nd-year maturity. Heuchera sanguinea. Ruby Bells Heuchera Seeds. Non-GMO, open-pollinated, Perennial. Open Pollinated. Ruby Bells heuchera seeds promise one of the most tolerant and versatile perennial grows in any garden. Ruby Bells heuchera seeds grow 12-18 inch tall creeping mounds famous for their bright pink and red blooming spikes bursting with ½-inch bell-shaped blooms ideal for invigorating any sad flower bed, walkway, or patio. Ruby Bells are a vibrant and exciting substitute to Baby’s Breath in your next fresh-cut basket or bouquet. Ruby Bells heucheras are durable, and a low-maintenance starter for novice gardeners. Pelleted Seeds.