Some Perennials to Water Only One Time a Month
This very impressive list of perennial flowering plants is suggested by author Ron Lutsko, in the summer issue of “Pacific Horticulture,” for gardens that “are watered only once a month during dry times.”
It contains fairly common plants and many with unpronounceable names that will be harder to find, but that is the challenge--to find interesting plants that need less water.
Achillea ageratifolia
Achillea clavennae
Achillea umbellata
Achillea ‘Moonshine’
Agapanthus
Agave
Aloe
Armeria maritima
Artemesia absinthium ‘Lambrook Silver’
Artemesia ludoviciana var. albula
Artemesia ‘Powis Castle’
Aurinia saxatilis (Alyssum saxatile) ‘Citrina’
Balotta
Boltonia asteroides ‘Snowbank’
Calamagrotis foliosa
Centranthus ruber
Cerastium bieberstenii
Cerastium tomentosum
Convolvulus cneorum
Convolvulus mauritanicus
Cotinus coggygria ‘Purpureus’
Dietes vegeta
Echeveria
Erigeron glaucus
Erigeron ‘Moerheimii’
Eriogonum giganteum
Eriogonum umbellatum
Eryngium eburneum
Euphorbia characias wulfenii
Euphorbia griffithii ‘Fireglow’
Euphorbia rigida
Felecia amelloides
Festuca amethystina
Festuca californica
Festuca idahoensis
Gaura lindheimeri
Helianthemum
Helichrysum
Helictotrichon sempervirens
Heuchera Bressingham Hybrids
Iberis sempervirens ‘Snowflake’
Iris ‘Canyon Snow’
Iris, tall bearded
Kniphofia
Lavandula angustifolia ‘Hidcote’
Lavandula angustifolia ‘Munstead’
Lavandula dentata
Lavandula stoechas nana
Lechenaultia biloba
Leonotus leonurus
Libertia
Lithodora diffusa ‘Grace Ward’
Lobelia erinus
Malva alcea ‘Fastigata’
Nepeta
Onosma tauricum
Pemstemon heterophyllus
Penstemon spectabilis
Penstemon ‘Evelyn’
Penstemon ‘Holly’s White’
Penstemon ‘Huntington Pink’
Penstemon ‘Midnight’
Perovskia atriplicifolia
Phlomis russeliana
Phlox douglasii ‘Rosea’
Phlox drummondii
Phlox subulata
Phormium
Plecostachys serpyllifolia
Puya
Romneya coulteri
Rudbeckia
Ruta graveolens
Salvia clevelandii
Salvia farinacea ‘Victoria’
Salvia haematodes
Salvia leucantha
Salvia officinalis ‘Purpurea’
Salvia sclarea
Santolina virens
Scabiosa columbaria
Senecio bicolor (S. cineraria)
Senecio bicolor ‘Cirrus’
Senecio leucostachys
Senecio ‘Sunshine’
Sisyrinchium
Sollya heterophylla
Stachys byzantina ‘Silver Carpet’
Stipa cernua
Stipa gigantea
Teucrium chaemedrys
Teucrium cossonii
Teucrium fruticans
Thymus ‘Peter Davis’
Verbascum
Verbena bonariensis
Veronica incana
Yucca whipplei
Zauschneria californica
