The Well-Tended Perennial Garden The Essential Guide to Planting and Pruning Techniques, Third Edition

14. erennials to deadhead to prolong bloom or P
    for rebloom

Achillea

Aconitum

Agastache

Alcea rosea

Anchusa azurea

Aquilegia hybrids

Armeria maritima

Asclepias tuberosa

Aster ×frikartii

‘Mönch’

Astrantia major

Begonia grandis

Campanula

Centaurea montana

Centranthus ruber

Clinopodium

Coreopsis

Cota tinctoria

Delphinium

Dianthus ×allwoodii

Dianthus

gratianopolitanus

Dicentra formosa

‘Luxuriant’

Digitalis

Echinacea purpurea

Echinops ritro

Filipendula ulmaria

Gaillardia

×grandiflora

Gaura lindheimeri

Geranium phaeum

Geum hybrids

Gypsophila

paniculata

Helenium autumnale

Heliopsis

helianthoides

Hemerocallis

Hesperis matronalis

Heuchera sanguinea

Hibiscus moscheutos

Inula

Knautia macedonica

Kniphofia hybrids

Lavandula

Leucanthemum

×superbum

Liatris spicata

Limonium

platyphyllum

Linaria purpurea

Lupinus hybrids

Lysimachia punctata

Malva alcea

‘Fastigiata’

Monarda didyma

Oenothera

macrocarpa

Oenothera speciosa

Patrinia scabiosifolia

Penstemon barbatus

Persicaria amplexi-

caulis ‘Firetail’

Phlomis

Phlox maculata

Phlox paniculata

Platycodon

grandiflorus

Potentilla

Pseudofumaria lutea

Salvia ×sylvestris

Scabiosa

Sidalcea malviflora

Silene coronaria

Spigelia marilandica

Stokesia laevis

Symphytum

Tiarella cordifolia

Tradescantia

×andersoniana

Veronica spicata

Veronicastrum

virginicum

Agastache