33 Flowers That Start With K: Complete Guide & Care

Quick Answer: Flowers that start with K includes Kaffir Lily, Kalanchoe, Kalmia, Kalmiopsis, Kangaroo Paw, Kanawao, Kadupul, Kelkiewyn, Kerria, Kigelia, King Protea, King's Mantle, Kirengeshoma, Kiss Me Over the Garden Gate, Kitaibelia, Knautia, Knapweed, Kniphofia, Kobus Magnolia, Kochia, Koki'o, Kolkwitzia, Korean Bellflower, Korean Mint, Korolkowia, Kopsia, Kosteletzkya, Kunzea, Kaempferia, Kingcup, Keckiella, Krigia, Kalimeris.

Flowers starting with K include bright indoor bloomers, bold border flowers, flowering shrubs, unusual tropical plants, and a handful of genuine botanical rarities. Kalanchoe, Kalmia, Kangaroo Paw, King Protea, Knautia, Kerria, and Kniphofia are the most familiar names, but plant type, bloom season, color, space, soil, water, and climate all matter more than the shared first letter. A compact Kalanchoe sits happily in a sunny indoor pot, while a Kobus Magnolia needs real landscape space.

K Named Flowers: At a Glance

Common Name	Botanical Name	Plant Type	Main Colors	Bloom Season	Best Use	Beginner-Friendly	Climate Fit
Kaffir Lily	Clivia miniata	Flowering plant	Orange, red, yellow	Late winter–spring	Indoor pots, shade patios	Yes	Indoors or warm, sheltered
Kalanchoe	Kalanchoe blossfeldiana	Flowering succulent	Red, pink, orange, yellow, white	Winter–spring	Indoor pots, containers	Yes	Indoors or warm climates
Kalmia	Kalmia latifolia	Flowering shrub	Pink, white	Late spring–early summer	Woodland gardens	Moderate	Cooler–moderate climates
Kalmiopsis	Kalmiopsis leachiana	Flowering shrub	Pink	Spring–early summer	Rock gardens, specialty	Moderate	Cooler, well-drained
Kangaroo Paw	Anigozanthos spp.	Perennial flower	Red, orange, yellow, green	Spring–summer	Accent planting, cut flowers	Moderate	Warm sunny climates
Kanawao	Broussaisia arguta	Flowering shrub	White, pink, blue	Seasonal	Regional botanical interest	No	Humid tropical–subtropical
Kadupul	Epiphyllum oxypetalum	Flowering cactus	White	Night-blooming, warm season	Specialty containers	Moderate	Warm sheltered spaces
Kelkiewyn	Babiana ringens	Bulbous flower	Red	Spring	Specialty bulb gardens	Moderate	Mild, well-drained
Kerria	Kerria japonica	Flowering shrub	Yellow	Spring	Shrub borders, cottage gardens	Yes	Moderate climates
Kigelia	Kigelia africana	Flowering tree	Dark red, maroon	Warm season	Large landscapes	No	Warm climates
King Protea	Protea cynaroides	Flowering shrub	Pink, cream, red	Spring–fall by climate	Focal bloom, bouquets	Moderate	Warm dry climates
King’s Mantle	Thunbergia erecta	Flowering shrub	Purple, blue-violet	Warm season	Tropical borders, hedges	Moderate	Warm climates
Kirengeshoma	Kirengeshoma palmata	Perennial flower	Soft yellow	Late summer–fall	Shade gardens	Moderate	Cooler shaded gardens
Kiss Me Over the Garden Gate	Persicaria orientalis	Annual flowering plant	Pink	Summer–fall	Cottage gardens	Moderate	Moderate–warm climates
Kitaibelia	Kitaibelia vitifolia	Flowering perennial	White	Summer	Specialty borders	Moderate	Moderate climates
Knautia	Knautia macedonica	Perennial flower	Crimson, purple-red	Summer–fall	Pollinator borders	Yes	Broad garden range
Knapweed	Centaurea spp.	Herbaceous flower	Purple, pink, white	Summer	Meadow-style planting	Moderate	Varies by species
Kniphofia	Kniphofia uvaria	Perennial flower	Red, orange, yellow	Summer	Sunny borders	Yes	Moderate–warm climates
Kobus Magnolia	Magnolia kobus	Flowering tree	White	Early spring	Ornamental landscape tree	Moderate	Cooler–moderate climates
Kochia	Bassia scoparia	Ornamental annual	Green/red foliage, small flowers	Summer	Foliage displays	Moderate	Sunny annual beds
Koki’o	Hibiscus kokio	Flowering shrub	Red, orange	Seasonal	Hawaiian native interest	No	Warm tropical spaces
Kolkwitzia	Kolkwitzia amabilis	Flowering shrub	Pink	Late spring	Shrub borders	Yes	Moderate climates
Korean Bellflower	Campanula takesimana	Perennial flower	Pink, lavender, white	Summer	Cottage/border planting	Moderate	Cooler–moderate climates
Korean Mint	Agastache rugosa	Herbaceous perennial	Purple, lavender	Summer–fall	Pollinator planting	Yes	Sunny well-drained beds
Korolkowia	Korolkowia sewerzowii	Bulbous perennial	Greenish-yellow, brown	Spring	Collector bulb planting	No	Dry, well-drained sites
Kopsia	Kopsia fruticosa	Flowering shrub	Pink, white	Warm season	Tropical ornamental planting	Moderate	Warm climates
Kosteletzkya	Kosteletzkya virginica	Flowering perennial	Pink	Summer	Moist soils, rain gardens	Moderate	Moist moderate–warm
Kunzea	Kunzea spp.	Flowering shrub	White, pink	Spring–summer	Coastal/native-style planting	Moderate	Warm–moderate climates
Kaempferia	Kaempferia spp.	Tropical flowering perennial	Purple, white, pink	Warm season	Shaded tropical containers	Moderate	Warm, humid climates
Kingcup	Caltha palustris	Wetland perennial	Yellow	Spring	Pond edges, bog gardens	Moderate	Cool–temperate wet sites
Keckiella	Keckiella spp.	Native flowering shrub	Red, orange, yellow	Summer	Dry native/pollinator gardens	Moderate	Warm dry climates (Western US)
Krigia	Krigia spp.	Wildflower	Yellow	Spring–summer	Meadow, naturalized planting	Yes	Broad North American range
Kalimeris	Kalimeris spp.	Perennial flower	Pale lavender, white	Summer–fall	Naturalistic borders	Moderate	Temperate climates

---

Bloom Time and Growing Zones at a Glance

Flower	Typical Bloom Time	Best Placement
Kaffir Lily	Late winter–spring	Indoor pots, shade patios
Kalanchoe	Winter–spring	Bright indoor pots
Kalmia	Late spring–early summer	Woodland gardens
Kalmiopsis	Spring–early summer	Rock gardens
Kangaroo Paw	Spring–summer	Accent beds, cut flower gardens
Kadupul	Warm-season night blooms	Specialty containers
Kerria	Spring	Shrub borders
Kigelia	Warm season	Large landscapes
King Protea	Spring–fall by climate	Focal planting, floral cutting
King’s Mantle	Warm season	Hedges, warm borders
Kirengeshoma	Late summer–fall	Shade borders
Kiss Me Over the Garden Gate	Summer–fall	Cottage gardens
Knautia	Summer–fall	Pollinator borders
Knapweed	Summer	Meadows, naturalized spaces
Kniphofia	Summer	Sunny borders
Kobus Magnolia	Early spring	Landscape specimen
Kolkwitzia	Late spring	Shrub borders
Korean Bellflower	Summer	Borders, cottage beds
Korean Mint	Summer–fall	Pollinator planting
Kosteletzkya	Summer	Rain gardens, damp borders
Kunzea	Spring–summer	Coastal/native-style planting
Kingcup	Spring	Pond/bog edges
Krigia	Spring–summer	Meadow planting

---

Plants vs. Flowers That Start With K

K-flower lists often mix true flowers with flowering plants, shrubs, trees, and succulents, that’s not wrong, but the labels matter. A Kalanchoe is a flowering succulent, Kalmia is a flowering shrub, Kobus Magnolia is a flowering tree, and Knautia is a classic perennial border flower. These all produce flowers, but they don’t fit the same garden space.

Type	Example	Why It Appears in K-Flower Lists
Flowering succulent	Kalanchoe	Grown for bright clusters of blooms in pots
Flowering shrub	Kalmia	Known for showy seasonal flowers
Flowering tree	Kobus Magnolia	Included for ornamental spring blooms
Perennial flower	Knautia	Works as a true garden border flower
Bulbous flower	Kelkiewyn	Grown for distinctive seasonal blooms
Wetland perennial	Kingcup	Grown for spring bloom in wet ground

For another list that mixes classic blooms with flowering plants, see Flowers That Start With H.

---

Types of Flowers That Start With K

Type	Strong Examples	Best For
Perennials	Knautia, Kniphofia, Kirengeshoma, Kalimeris	Returning garden color
Annuals	Kiss Me Over the Garden Gate	Seasonal cottage-style planting
Shrubs	Kalmia, Kerria, Kolkwitzia, Kunzea, Keckiella	Borders and structure
Trees	Kobus Magnolia, Kigelia	Larger landscape spaces
Indoor/container plants	Kalanchoe, Kaffir Lily, Kaempferia	Pots and sheltered spaces
Wildflowers	Krigia, Kingcup	Meadows, wet margins
Rare/specialty plants	Kadupul, Koki’o, Kanawao, Kopsia	Botanical interest

For a broader alphabet list with many common garden choices, see Flowers That Start With C.

---

K Flower Names by Color

Color	Best K-Flower Examples	Best Garden Use
Yellow	Kerria, Kniphofia, Kirengeshoma, Kalanchoe, Kaffir Lily, Kingcup, Krigia	Spring borders, sunny beds, indoor pots
Pink	Kalmia, King Protea, Kolkwitzia, Kiss Me Over the Garden Gate, Kosteletzkya, Kaempferia	Shrub borders, cottage gardens, moist sites
White	Kobus Magnolia, Kalmia, Kopsia, Kosteletzkya, Kunzea, Kitaibelia	Woodland gardens, calm mixed beds
Red/orange	Kangaroo Paw, Kniphofia, Kalanchoe, Kaffir Lily, Koki’o, Keckiella	Warm borders, pots, bold accents
Purple	Knautia, King’s Mantle, Korean Mint, some Kalmia, some Kunzea, Kalimeris	Pollinator beds, warm garden borders

For more purple, pink, and pollinator-friendly blooms, see Flowers That Start With P. For another color-rich list, see Flowers That Start With S.

---

Best K Flowers by Use

Use	Best Picks	Why They Work
Indoor pots	Kalanchoe, Kaffir Lily, Kaempferia	Compact and reliable in containers
Sunny borders	Kniphofia, Knautia	Strong color and garden structure
Shade gardens	Kirengeshoma, Kalmia	Better fit for softer light
Pollinator planting	Knautia, Korean Mint, Kosteletzkya	Useful nectar value
Cut flowers	King Protea, Kangaroo Paw	Bold shape, strong stems
Moist soil/pond edges	Kosteletzkya, Kingcup	Better fit for damp garden areas
Large landscapes	Kobus Magnolia, Kigelia	Need more space than border plants
Beginner gardens	Kalanchoe, Kerria, Kniphofia, Krigia	Easier care and placement
Rare plant interest	Kadupul, Koki’o, Kanawao, Kopsia	More unusual botanical value

---

Common Flowers That Start With K

Kaffir Lily (Clivia miniata) — orange, red, or yellow blooms late winter to spring; best in indoor pots and shaded patios with bright indirect light and no soggy soil.

Kalanchoe (Kalanchoe blossfeldiana) — a flowering succulent in red, pink, orange, yellow, or white, blooming winter to spring; needs bright light and dry-between-waterings care.

Kalmia (Kalmia latifolia) — pink or white shrub blooms in late spring to early summer, preferring cool, moist, acidic, well-drained soil.

Kangaroo Paw (Anigozanthos spp.) — red, orange, yellow, or green perennial flowers, spring to summer, needing full sun and sharp drainage.

Kerria (Kerria japonica) — yellow spring shrub flowers, best with light shaping after flowering to stay tidy.

King Protea (Protea cynaroides) — pink, cream, or red blooms depending on climate, needing bright exposure, lean soil, and careful watering.

Kiss Me Over the Garden Gate (Persicaria orientalis) — pink summer-to-fall annual flowers on tall, loose stems that need space to show naturally.

Knautia (Knautia macedonica) — crimson to purple-red perennial blooms, summer to fall, supported by sun and well-drained soil.

Knapweed (Centaurea spp.) — purple, pink, or white summer blooms; choose species carefully since behavior can vary by region.

Kniphofia (Kniphofia uvaria) — red, orange, or yellow summer spikes, needing full sun and free-draining soil.

Korean Bellflower (Campanula takesimana) — pink, lavender, or white summer blooms for cooler-to-moderate gardens with decent soil moisture.

Korean Mint (Agastache rugosa) — lavender-purple summer-to-fall spikes, needing sun, drainage, and airflow.

Kobus Magnolia (Magnolia kobus) — white early-spring blooms on a tree that needs real space to grow.

Kolkwitzia (Kolkwitzia amabilis) — pink late-spring shrub blooms, best where arching growth has room to spread.

Kosteletzkya (Kosteletzkya virginica) — pink summer blooms, suiting moisture-retentive sites better than dry beds.

Kunzea (Kunzea spp.) — white or pink spring-to-summer shrub blooms; select the species according to climate and space.

For the letter before or after this one, see Flowers That Start With J or continue to Flowers That Start With L.

---

What Are Rare Flowers That Start With K?

Kadupul is linked with night-blooming cactus flowers, valued for its short-lived white bloom — a specialty plant rather than standard bedding flower. Kelkiewyn (Babiana ringens) is a South African bulbous flower with an unusual red bloom form, better suited to specialty bulb collections. Koki’o refers to Hawaiian hibiscus species with red or orange blooms, needing warm growing conditions. Kanawao is a Hawaiian flowering shrub with white, pink, or blue clusters, more regionally important than common in general garden centers. Kopsia is a warm-climate flowering shrub producing pink or white blooms, mostly a botanical or conservatory interest in cooler areas. Kitaibelia produces white flowers with a tall garden presence, less widely known than Knautia or Kniphofia. Korolkowia is a collector-type bulbous perennial linked with Fritillaria relatives, needing dry, well-drained conditions. Kalmiopsis has a more restricted natural range than common shrubs, valuable in botanical collections and rock-garden planting. Kigelia is a large flowering tree with unusual dark red to maroon flowers, needing warm climates and landscape space. King’s Mantle produces violet to blue-purple blooms, more practical in frost-free or sheltered climates. Among this guide’s additions, Kaempferia stands out as a genuine tropical rarity — a shade-loving ginger relative rarely seen outside specialty tropical plant collections.

---

Before Planting K Flowers: Safety, Invasive, and Climate Notes

Concern	Examples	What to Know
Toxicity caution	Kalmia	Avoid casual planting where pets or children may chew plant parts
Climate sensitivity	King Protea, Kangaroo Paw	Best in warm, bright, well-drained conditions
Space needs	Kobus Magnolia, Kigelia	Better for landscapes than small beds
Overwatering risk	Kalanchoe	Succulent types dislike soggy soil
Species variation	Knapweed, Kunzea	Choose the exact species with local guidance

Before planting any unfamiliar flower, check local extension guidance or a trusted plant database.

---

Growing Snapshot

K-flowers don’t share one care pattern. Kalanchoe and Kaffir Lily are mainly practical as pot plants in many climates. Kalmia and Kirengeshoma lean toward softer light. Kniphofia, King Protea, and Kangaroo Paw need brighter sites and strong drainage. Kosteletzkya and Kingcup stand out for handling wetter soil than most other K-flowers.

Growing Condition	Best K Examples	Notes
Full sun and drainage	Kangaroo Paw, King Protea, Kniphofia	Avoid waterlogged soil
Indoor bright light	Kalanchoe, Kaffir Lily, Kaempferia	Best in pots or sheltered spaces
Part shade	Kalmia, Kirengeshoma	Better for woodland-style settings
Moist/wet soil	Kosteletzkya, Kingcup	Useful for rain garden or pond-edge planting
Acidic soil	Kalmia	Soil condition matters
Larger landscape space	Kobus Magnolia, Kigelia	Not ideal for small beds

---

Best Garden Uses

Knautia, Kniphofia, Kerria, and Kolkwitzia work well in beds and borders. Kalanchoe and Kaffir Lily are stronger as container choices. King Protea and Kangaroo Paw stand out for floral work, while Kosteletzkya and Kingcup bring value to moist ground.

For beds and borders, Knautia gives loose, natural color, and Kniphofia adds upright flower spikes. For containers, Kalanchoe is the most practical, especially indoors. For bouquets, King Protea and Kangaroo Paw are the strongest choices. For shade, Kalmia and Kirengeshoma are better matches. Kalmia and Kirengeshoma fit woodland-style gardens; Kerria and Kiss Me Over the Garden Gate fit cottage-style planting; Knautia, Korean Mint, and Kosteletzkya support pollinator-friendly borders.

---

Conclusion

Flower names starting with K range from easy indoor plants to rare collector blooms and large landscape ornamentals. For simple starting points, Kalanchoe, Kerria, Knautia, and Kniphofia are among the most practical names. For bold flowers, King Protea and Kangaroo Paw stand out. For rare botanical interest, Kadupul, Koki’o, Kanawao, Kopsia, Kelkiewyn, and Kaempferia add real variety. The best result comes from matching each flower to the right light, soil, water level, climate, and space.

---

FAQ

References

• Missouri Botanical Garden — Plant Finder (Kalanchoe blossfeldiana)
• NC State Extension — Plant Toolbox (Kalmia latifolia)
• Royal Horticultural Society — RHS Plant Finder (Kniphofia, Agastache rugosa)
• USDA — PLANTS Database
• Royal Botanic Gardens, Kew — Plants of the World Online