Related by context. Frequent words. (Click for all words.) 61 heartier 57 hardy 51 sturdier 51 pest resistant 51 stouter 50 tastier 49 warmer winters 49 moister 49 temperate zones 49 cooler climates 48 drought tolerant 48 hybridized 48 thicker 48 overwinter 48 paler 47 milder 47 milder winters 47 salt tolerant 46 overwintering 46 tropical climates 46 drought resistant 46 warmer 46 colder temperatures 46 japonica 46 cultivars 46 genetically diverse 46 cold climates 45 colder climates 45 fresher 45 resistant varieties 45 temperate climates 44 warmer climates 44 dianthus 44 colder 44 coneflowers 44 denser 44 warmer temperatures 44 interbred 44 varieties 44 showier 44 herbaceous plants 43 heirloom varieties 43 shrubby 43 asters 43 hardiest 43 stockier 43 flowering plants 43 temperate 43 hollyhocks 43 tall fescue 43 thirstier 43 perennials 42 chillier 42 creamier 42 delphiniums 42 sleeker 42 crabapple 42 browner 42 cold winters 42 shorter 42 hybridize 42 hardiness 42 drier 42 cultivar 42 bulkier 42 genetically identical 42 thinner 42 plumper 42 sedums 42 heavier 42 hellebores 42 fluffier 42 butterfly bush 41 shinier 41 cannas 41 juncos 41 woody plants 41 hairier 41 crispier 41 sunnier 41 prettier 41 rhizomes 41 Newer 41 impatiens 41 virulent strains 41 stealthier 41 wetter 41 thinner lighter 41 cooler temperatures 41 Dandelions 41 petunias 40 phlox 40 cheaper 40 beefier 40 fruitier 40 grasses 40 harsh winters 40 tubers 40 safer 40 warmer climes 40 hibernated