'Katherine Dykes' Shrubby Cinquefoil 'Katherine Havemeyer' Common Lilac
'Katherine' Summer Phlox 'Katherine' Yaupon Holly
'Katie Pink' Mexican Petunia 'Katsura' Japanese Maple
Katsura Tree Katsura Tree (spp.)
Katsura Tree 'Ruby' Katsura Tree, Weeping
Kauri Pine Kauri, Moore
Kauri, Queensland Kauri, Santa Cruz
Kauri, Smooth Bark Kawaka
'Keepsake' Mountain Laurel Kei Cycad
'Keith Davey' Chinese Pistachio 'Kelleriis' Japanese Barberry
'Kelleriis Viridis' American Arborvitae 'Kelly's Gold' Boxelder
'Kelsae Sweet Giant' Onion 'Kelseys Gold' Red Osier Dogwood
'Kelwayi' Golden Marguerite 'Kembu' False Holly
'Ken Clifford' Spiderwort: hybrid 'Ken Taylor' Flannel Bush
'Ken Taylor' Rosemary Kencur
Kennedy's Buckwheat 'Kentish Belle' Flowering Maple
Kentucky Blue Grass Kentucky Coffee Tree Variegated
'Kentucky Colonel' Spearmint 'Keown' Monterey Cypress
Kerme's Oak Kerria, Japanese (spp.)
Kerria, Japanese 'Albaflora' Kerria, Japanese 'Aureovitla'
Kerria, Japanese 'Golden Guinea' Kerria, Japanese 'Picta'
Kerria, Japanese 'Shannon' 'Kesselringii' White Dogwood
'Keteleeri' Eastern Red Cedar 'Kew Blue' Blue Mist Spirea
'Kew Green' Skimmia 'Kew Rose' Tree Lavatera
'Kewensis' Primrose: hybrid 'Kewensis' Wintercreeper
Key Thatch Palm Keyflower (spp.)
Kiepersol 'Kiku-Shidari' Oriental Cherry
'Kimberly Queen' Boston Fern 'Kimono' Foamy Bells
'Kim's Knee High' Purple Coneflower 'Kim's Mophead' Purple Coneflower
'Kindly Light' Daylily King Alexander Palm
'King Arthur' Sweet Corn 'King Creole' Louisiana Iris
'King Edward VII' Red Flowering Currant 'King Edward' Yarrow
'King George' Rhododendron 'King of Kings' Bromeliad: hybrid
King Protea 'King Rose' Magnolia
King Sago Palm 'King TutŪ' Egyptian Paper Reed
King's Crown King's Mantle
King's Spear (spp.) King's Spear: himalaicus
King's Spear: robustus 'Kingston Cardinal' Hellebore
'Kingsville 1' Japanese Maple 'Kingsville Green Cushion' Japanese Holly
'Kingswood Gold' Jewels Of Opar 'Kinkaku' Ginger Lily
'Kinkaku' Hosta: montana 'Kinlochruei' Scotch Heather
Kinnikinick (spp.) Kinnikinick 'Massachusetts'
Kinnikinick 'Microphylla' Kinnikinick 'Point Reyes'
Kinnikinick 'Radiant' 'Kinshi' Japanese Tree Peony
'Kintoki' Japanese Cornel Dogwood Kirengeshoma: palmata
Kirk's Kohuhu 'Kiss Yellow' Treasure Flower
Kite Tree Kiwi Fruit, Ferguson
'Kiwi' New Zealand Tea Tree Kiwi (spp.)
Kiwi 'Arctic Beauty' Kiwi, Fuzzy Skinned