Gymnocladus dioica ( Kentucky Coffee Tree )

Gymnocladus dioica is a large deciduous tree, generally reaching 75 feet tall, 50 feet spread in cultivation. It develops a tall, narrow crown, with vertically ascending branches. The bark is gray brown with scaly ridges, curling outward from the edges. […]

Guzmania ( Guzmania )

Found from South Florida to the West Indies, this rainforest type plant occurs at elevations of 11,500 feet. There are over 120 species in the Guzmania genus. Leaves are lance-shaped atop funnel-shaped rosettes. Flowers are also funnel to tubular, white […]

Guadua velutina ( CommonName Not Available )

The culms of this species have very thick walls. The sheaths of young shoots are maroon and remain on the base internodes. Bamboo is a common term for a large number of giant grasses that include many different species and […]

Graptophyllum ( Graptophyllum )

Evergreen shrub from Australasia and the SW Pacific that has large, oval, sometimes variegated leaves with pinkish midribs. Flowers are two-lipped and produce racemes of crimson to purple flowers. Grow in fertile, well-drained soil in semi-shade.

Gnaphalium spicatum ( Shiny Cudweed )

Annual or biennial weed with broad, uniform-sized green leaves. White hairs beneath surface of leaves. Stands erect with brown or purple flower heads. Appears where conditions are dry, open and sandy. Weed commonly found from the southeastern United States to […]

Gnaphalium pensylvanicum ( Wandering Cudweed )

Annual weed with green leaves whose undersides are covered with thick, white hairs. Stems are of uniform size and also hairy. Small pink to purple flowers. Weed common to the southeastern United States. Will appear up through Pennsylvania and often […]

Gloxinia perennis ( Gloxinia )

G. perennis is a bushy rhizomatous perennial with egg shaped mid-green leaves to 8 inches long with single lavender blue flowers in early summer. Gloxinia require a minimum night temperture of 60 F, the tubers are planted in March and […]