Walking Iris – National Arboretum, Washington DC Purple and White Zinnia – National Arboretum, Wash… Coreopsis "Sweet Dreams" – National Arboretum, Was… "Purple Dome" Aster – National Arboretum, Washingt… Bonsai Japanese Yew – National Arboretum, Washingt… Giant Hibiscus – National Arboretum, Washington D.… Zephyranthes Rosea – National Arboretum, Washingto… Dancing on a "Moonbeam" – National Arboretum, Wash… "Black Flamingo" – National Arboretum, Washington… Coreopsis "Red Shift" – National Arboretum, Washin… Eupatorium fortunei – National Arboretum, Washingt… Leopard "Lily" – National Arboretum, Washington D… He Had High Hopes – National Arboretum, Washington… Old Capitol Columns #4 – National Arboretum, Washi… Purple Zinnia, Brown Skipper – National Arboretum,… Japanese Stone Lantern #3 – National Arboretum, Wa… What's Upside Down Tiger Lily? – National Arboretu… Seeing Spots – National Arboretum, Washington DC Chinese Trumpet Vine – National Arboretum, Washing… Crape Myrtle – National Arboretum, Washington DC Purple Zinnia – National Arboretum, Washington DC "Twist-n-Shout" Hydrangea – National Arboretum, Wa… Crape Myrtle Flowers – National Arboretum, Washing… Yellow Vanda Orchid – National Arboretum, Washingt… Orange Marigold – National Arboretum, Washington D… Blooming Pearls – National Arboretum, Washington D… Banana Flower – National Arboretum, Washington DC Frangipani Flower – National Arboretum, Washington… Formosa Pine #2 – National Arboretum, Washington D… Balloon Flower – National Arboretum, Washington DC Persian Silk Tree – National Arboretum, Washington… A Study in Orange – National Arboretum, Washington… "Lady in Red" Hydrangea – National Arboretum, Wash… Bonsai Ginkgo – National Arboretum, Washington DC Japanese Beetle – National Arboretum, Washington D… Windswept – National Arboretum, Washington DC The Green-eyed Monster – National Arboretum, Washi… Desert Willow – National Arboretum, Washington DC Bonsai Chinese Juniper – National Arboretum, Washi… Cicada-Killer Wasp – National Arboretum, Washingto… The Other Side of the Ponderosa Pine – National Ar… Smokin' – National Arboretum, Washington DC Red Means "Stop" and Green Means "Go" – National A… "Solar Flare" Orchid – National Arboretum, Washing… Peruvian Lily – National Arboretum, Washington DC Hollyhock and Company – National Arboretum, Washin… "Franz Schubert" Phlox – National Arboretum, Washi… Bonsai English Hawthorn – National Arboretum, Wash… Bonsai Bougainvillea Flowers – National Arboretum,… Crape Myrtle in Autumn #2 – National Arboretum, Wa… Bleeding Heart Vine – National Arboretum, Washingt… Upping the Ante – National Arboretum, Washington D… Crape Myrtle in Autumn #1 – National Arboretum, Wa… Japanese Cedar #1 – National Arboretum, Washington… Japanese Cedar #2 – National Arboretum, Washington… Amidst the Sheffied Pinks – National Arboretum, Wa… The Zither Player – National Arboretum, Washington… Bonsai Japanese Maple – National Arboretum, Washin… Bonsai Lantana Tree – National Arboretum, Washingt… White Spider Chrysanthemum Buds – National Arboret… Dwarf Hinoki Cypress – National Arboretum, Washing… Bonsai American Hornbeam – National Arboretum, Was… Formosa Pine #2 – National Arboretum, Washington D… Japanese Maple – National Arboretum, Washington DC Bonsai Kurume Azalea – National Arboretum, Washing… Japanese Black Pine – National Arboretum, Washingt… Bonsai Red Maple – National Arboretum, Washington… Japanese Cedar – National Arboretum, Washington DC Lilac Explosion – National Arboretum, Washington D… Gilding the Lily – Ikebana Exhibition, National Ar… Japanese Stone Lantern #2 – National Arboretum, Wa… Bonsai Red Maple – National Arboretum, Washington… Tangentially Dreaming – National Arboretum, Washin… Cat's Cradle – Ikebana Exhibition, National Arbore… Bonsai Japanese Premna – National Arboretum, Washi… Allium Among the Tulips – National Arboretum, Wash… "Hozan" Bonzai Azaleas – National Arboretum, Washi… Cohabitation – National Arboretum, Washington DC "Homare" Bonzai Azaleas – National Arboretum, Wash… "Nikko" Bonzai Azaleas – National Arboretum, Washi… "Eikan" Bonzai Azaleas – National Arboretum, Washi… Taiwan Red Pine – National Arboretum, Washington D… 'Kinsei' Bonzai Azaleas – National Arboretum, Wash… Leatherleaf Mahonia – National Arboretum, Washingt… Laying Her Eggs – National Arboretum, Washington D… Tiny Hope Asian Lilies – National Arboretum, Washi… Japanese Maple – National Arboretum, Washington DC Lilies on the Rocks – National Arboretum, Washingt… Sunflower Burst – National Arboretum, Washington D… Rose Hip – National Arboretum, Washington DC Potinara Hoku Gem – National Arboretum, Washington… The Big Bang Theory – National Arboretum, Washingt… Keowee Newberry – National Arboretum, Washington D… Daffodils – National Arboretum, Washington DC Tulips Blowin' in the Wind – National Arboretum, W… Stargazer Lily – Ikebana Exhibition, National Arbo… Yoshino Cherry Blossoms – National Arboretum, Wash… Cherry Branch – Ikebana Exhibition, National Arbor… Camellias and Parasols – Ikebana Exhibition, Natio… "Leucantha" Japanese Camellia – Asian Collection,… Tongues of Fire – Ikebana Exhibition, National Arb… The Coppertone Furl – Ikebana Exhibition, National… Bonsai English Hawthorn – National Arboretum, Wash… Pink Lilies – Ikebana Exhibition, National Arboret… Calla Lily Arrangement – Ikebana Exhibition, Natio… Torch Azalea – Asian Collection, National Arboretu… Peacock Feathers and Baskets – Ikebana Exhibition,… Bonsai Chinese Quince – National Arboretum, Washin… Dandelion Parachute Ball – National Arboretum, Was… A Three Ring Circle – Ikebana Exhibition, National… Cherry Blossom Pink – National Arboretum, Washingt… Bonsai Trident Maple – National Arboretum, Washing… Bonsai Western Yellow Pine – National Arboretum, W… Bonsai Japanese Wisteria – National Arboretum, Was… Bees Rampant on a Field Argent Supporting a Peony… Bonsai European Olive Trees – National Arboretum,… Duckies on the Dashboard A Bower of Lilacs – National Arboretum, Washington… Japanese Camellia – National Arboretum, Washington… Nature's Lantern – National Arboretum, Washington… Bonsai Bird's Nest Spruce – National Arboretum, Wa… Low Hanging Fruit – National Arboretum, Washington… Bonsai Kurume Azalea – National Arboretum, Washing… Royal Burgundy Cherry Blossoms – National Arboretu… Moon Orchid – National Arboretum, Washington D.C.