Heuchera Seeds - Ruby Bells2nd Year Maturity. Ruby Bells heuchera seeds promise one of the most tolerant and versatile perennial grows in any garden. Ruby Bells heuchera seeds grow 12 18 tall creeping mounds famous for their bright pink and red blooming spikes bursting with bell shaped blooms ideal for invigorating any tired flower bed, walkway, or patio. Ruby Bells are a vibrant and exciting substitute to Babys Breath in your next fresh cut basket or bouquet. Ruby Bells