A century plant (Agave havardiana) blooms only once35A century plant (Agave havardiana) blooms only once"Captain's Choice"  (tall bearded Siberian iris)36"Captain's Choice" (tall bearded Siberian iris)Bubbling Waves Iris - Tall Bearded48Bubbling Waves Iris - Tall BeardedMexican Bird of Paradise40Mexican Bird of ParadiseWildflowers on Sahale Arm70Wildflowers on Sahale ArmBluebell Wood - Brecon Beacons National Park, Wales72Bluebell Wood - Brecon Beacons National Park, WalesThe almost extinct Snowdonia Hawkweed35The almost extinct Snowdonia HawkweedSpring brings wildflowers to Estes Park in Colorado70Spring brings wildflowers to Estes Park in ColoradoSilversword plants with spike blossom72Silversword plants with spike blossomEnglemann's Prickly Pear cactus in blossom60Englemann's Prickly Pear cactus in blossomAvalanche Lilies in Olympic National Park48Avalanche Lilies in Olympic National ParkFlowers at the Mill -  Voorhout , Nederland70Flowers at the Mill - Voorhout , NederlandSome of the flora of the Cairngorms60Some of the flora of the CairngormsPurple Columbine means Spring!48Purple Columbine means Spring!Campanula Morettiana (wildflower)63Campanula Morettiana (wildflower)Weißensee, Nationalpark Hohe Tauern, Austria35Weißensee, Nationalpark Hohe Tauern, AustriaHedgehog Cactus Flowers at Joshua Tree National Park60Hedgehog Cactus Flowers at Joshua Tree National ParkEdelweiss bloom42Edelweiss bloomDark clouds over field of daffodils- Voorhout , Nederland70Dark clouds over field of daffodils- Voorhout , NederlandDesert Zinnias and Hedgehog cactus blooming together60Desert Zinnias and Hedgehog cactus blooming together