Dallas Blues switch grass, Panicum virgatum 'Dallas Blues', Growing outdoor.

Prairie gentian, Eustoma grandiflorium, Studio shot of mauve flower.

Prairie gentian, Eustoma grandiflorum, Close up of white flowers showing stamen.

Prairie mallow, Sidalcea malviflora, White-tailed Bumble bee, Bombus lucorum, flying to pollinate pink flowers.

Verbena, Brazilian verbena, Purple top, Verbena bonariensis, with Veronicastrum, Calamagrostis x acutiflora 'Karl Foerster' and Gaura, all tall plants in a late summer prairie style planted mixed bord...

Switchgrass, Panicum virgatum 'Prairie Sky'.

Switchgrass, Panicum virgatum 'Prairie Sky'.

Coneflower, Black-eyed Susan, Rudbeckia 'Prairie sun'.

Crabapple, Malus Ioensis.

Flax, Blue flax, Linum lewisii.

Rudbeckia hirta Prairie Sun with central green cones surrounded by orange petals radiationg back to yellow tips.

Switchgrass, Panicum virgatum.

Dallas Blues switch grass, Panicum virgatum 'Dallas Blues', Growing outdoor.

Prairie gentian, Eustoma grandiflorium, Studio shot of mauve flower.

Prairie gentian, Eustoma grandiflorum, Close up of white flowers showing stamen.

Prairie mallow, Sidalcea malviflora, White-tailed Bumble bee, Bombus lucorum, flying to pollinate pink flowers.

Verbena, Brazilian verbena, Purple top, Verbena bonariensis, with Veronicastrum, Calamagrostis x acutiflora 'Karl Foerster' and Gaura, all tall plants in a late summer prairie style planted mixed bord...

Switchgrass, Panicum virgatum 'Prairie Sky'.

Switchgrass, Panicum virgatum 'Prairie Sky'.

Coneflower, Black-eyed Susan, Rudbeckia 'Prairie sun'.

Crabapple, Malus Ioensis.

Flax, Blue flax, Linum lewisii.

Rudbeckia hirta Prairie Sun with central green cones surrounded by orange petals radiationg back to yellow tips.

Switchgrass, Panicum virgatum.

Allium, Allium Hollandicum 'Purple sensation'.

Allium, Allium Hollandicum 'Purple sensation'.

Allium, Allium Hollandicum 'Purple sensation'.

Allium, Allium Hollandicum 'Purple sensation'.

Allium, Allium Hollandicum 'Purple sensation'.

Allium, Allium Hollandicum 'Purple sensation'.

Allium', Allium Hollandicum 'Purple Sensation.

Allium, Allium Hollandicum 'Purple Sensation'.

Allium, Allium Hollandicum 'Purple Sensation'.

Allium, Allium Hollandicum 'Purple Sensation'.

Umbellifer flower head of Allium Hollandicum Purple Sensation emerging from protective green bracts in tightly clustered sphere of buds.

Umbellifer flower head of Allium Hollandicum Purple Sensation emerging from protective green bracts in tight cluster of buds, fully open at top and fading from purple to closed and green at base.