Wild Ginger Asarum splendens
You really have to look hard in the Herb Garden to spot this flower, as you can see it has mastered the art of camouflage.
Black Pussy Willow Salix gracilistyla var. melanostachys
Just passing by this tree you may not even know it is in flower, but upon close inspection of the catkin pictured above, you can see lots of anthers sticking out.
Panchito Manzanita Arctostaphylos x coloradoensis 'Panchito'
Check out this unique inflorescence on the Sprout House roof.
Skunkbush Sumac Rhus aromatica var. trilobata
Look closely and you can see, the flowers at the bottom of the inflorescence start opening first.
Queen Charlotte Viola odorata 'Konigin Charlotte'
In the Medicinal Garden, you won't be able to miss the sea of bright purple and the sweet scent this violet creates!