blue onion
(Allium azureum)

golden threadleaf yucca
(Yucca filamentosa Golden Sword)

pale yellow yarrow
(Achillea filipendula Anthea)

pineleaf beardtongue
(Penstemon pinifolius Shades of Mango)

English lavender Lavandula angustifolia Munstead

Thanks Lauren! P.S. I love all of your garden books. Have you ever given lectures at the Chicago Botanic Garden? I'm a member. I would definitely pay to hear you. I've learned so much from your books :-)

Thanks for your compliments bella rosa. I think the yucca is actually Color Guard not Golden Sword. I designed that hellstrip over a decade ago so i could be wrong. I’ve spoken in Chicago several times over the years. Haven’t been speaking as much nationally the past few years, too busy with public garden projects in Colorado.