Related by context. Frequent words. (Click for all words.) 66 stem cuttings 63 P. ramorum 62 self pollinating 61 Solanum 61 Flowering plants 61 plantlets 61 mycorrhizal fungi 60 perennial herb 60 herbicide resistant crops 60 cotoneaster 60 Artemisia annua 60 Prunus 59 salt tolerant 59 cucurbits 59 deciduous shrubs 59 glyphosate resistant 58 germ plasm 58 rootstocks 58 hybridizing 58 Garlic mustard 58 scented geraniums 58 Phytophthora 58 epiphytes 58 Fertilization 57 corms 57 leafhoppers 57 mealybug 57 Genetic modification 57 pest resistant 57 tansy 57 Euphorbia 57 nutrient uptake 57 pasture grasses 57 ornamental shrubs 57 croton 57 pondweed 57 flowering annuals 57 Bt gene 57 broad leafed 57 canadensis 57 woody plants 57 herbaceous plants 57 mullein 56 spp 56 inoculants 56 Penicillium 56 herbaceous perennials 56 taproots 56 seedheads 56 ageratum 56 Bt maize 56 drought tolerant crops 56 alkaline soils 56 fungal pathogens 56 tree peonies 56 flowering 56 serviceberry 56 sweetgum 56 Variegated 56 pussy willow 56 yellow flowered 56 Drip irrigation 56 Rhododendrons 56 Impatiens 56 endophyte 56 pearl millet 56 nitrogen fixing 56 desiccation 56 mealy bugs 56 shade tolerant 56 flowering bulbs 56 fruiting bodies 56 Botrytis 55 unsprayed 55 Hessian fly 55 secondary metabolites 55 shrub roses 55 fungal pathogen 55 cultivars 55 phalaenopsis 55 milkweeds 55 hybridized 55 insect pest 55 whitefly 55 hay meadows 55 unfertilized 55 hybridizers 55 culinary herbs 55 flowering shrub 55 sago palm 55 oxalis 55 insect resistant 55 Powdery mildew 55 tillering 55 sweet alyssum 55 trellising 55 Germination 55 Aloe vera 55 xylem 55 apple scab 55 catmint