The database
Perennials
Herbaceous perennials that return year after year.
1,429 plants

Joe Pye Weed
Eupatorium Purpureum
Full · Zones 4–8

Johnson's Blue Cranesbill
Geranium 'Johnson's Blue'
Full · Zones 2–10

Judith Daylily
Hemerocallis 'Judith'
Full · Zones 6–11

June Hosta
Hosta 'June'
Half · Zones 3–9

Jupiter's Beard, Red Valerian
Centranthus Ruber
Full · Zones 4–10

Kahili Ginger
Hedychium Gardnerianum
Full · Zones 8–10

Kalanchoe
Kalanchoe Blossfeldiana
Full · Zones 10–11

Kangaroo Paws, Red
Anigozanthos Hybrids
Full · Zones 9–11

Kangaroo Paw 'Yellow'
Anigozanthos 'Yellow'
Full · Zones 8–10

Karl Rosenfield Peony
Paeonia 'Karl Rosenfield'
Full · Zones 3–8

Kenilworth Ivy
Cymbalaria Muralis
Deep Shade · Zones 5–8

Kent Beauty Oregano
Origanum 'Kent Beauty'
Full · Zones 5–9

Key Lime Pie Coral Bells
Heuchera 'Key Lime Pie'
Half · Zones 3–10

Kim's Knee High Coneflower
Echinacea 'Kim's Knee High'
Full · Zones 3–9

King Of Bleeding Hearts
Dicentra 'King Of Hearts'
Half · Zones 3–9

Kirengeshoma
Kirengeshoma Koreana
Deep Shade · Zones 5–8

'Kit Kat' Catmint
Nepeta X Faassenii 'Kit Kat'
Full · Zones 3–8

Knotweed
Persicaria Affinis 'Superba'
Full · Zones 4–7

Kopper King Hardy Hibiscus
Hibiscus moscheutos 'Kopper King'
Full · Zones 4–9

Kreb's African Daisy
Gazania Krebsiana
Full · Zones 7–10

Kris Plant
Alocasia Sanderiana
Shade · Zones 9–11

Krossa Regal Hosta
Hosta 'Krossa Regal'
Half · Zones 2–9

Kudos Coral Dwarf Hummingbird Mint
Agastache 'Kudos Coral'
Full · Zones 4–10

Kudos Mandarin Dwarf Hummingbird Mi
Agastache 'Kudos Mandarin'
Full · Zones 4–9