18 Flowers That Start With K (Perennial & Annual) +Pictures (2024)

There are endless flowers to admire in the world. But, unfortunately, even the most avid gardeners and florists can’t name every flower.

This list contains 18 flowers; some of them are common and some lesser known. All of them have one thing in common – they are all flowers that start with K.

List Of Names Of Flowers That Start With K

• Kiss me over the garden gate(Persicaria orientalis)
• Kangkong (Ipomoea aquatica)
• Kaffir lily (Clivia miniata)
• King protea (Protea cynaroides)
• King’s mantle (Thunbergia erecta)
• Kiss me not (Euphorbia milii)
• Knapweed (Knautia macedonia)
• Kniphofia uvaria (Red Hot Poker)
• Kolkwitzia amabilis (Beautybush)
• Knautia arvensis (Field scabious)
• King’s spear (Asphodeline lutea)
• Kirengeshoma palmata (Yellow-Wax Bells)
• Kalanchoe (Kalanchoe blossfeldiana)
• Koko (Echinopsis formosa)
• Karoo rose (Lapidaria margaretae)
• Kangaroo paw (Anigozanthos)
• Kalmia latifolia (Mountain Laurel)
• King Solomon’s seal (Polygonatum)

Annual Flowers That Start With K

Kiss me over the garden gate(Persicaria orientalis)

Annual flowers that start with K are hard to come by, but kiss me over the garden gate makes up for that!

This towering annual can grow up to 8 ft. and is loaded with graceful arching red flowers contrasted with heart-shaped chartreuse foliage.

The habit of this plant (Perisicaria orientalis) plays well as a blending tool in your garden and can soften the spaces between plants.

Kangkong (Ipomoea aquatica)

Also known as water spinach or swamp morning glory, kangkong is an annual/perennial depending on where you live (if in a warm climate, it is perennial, if in a cold climate, it is annual). Its flower is white with a purple center.

It’s a semi-aquatic plant native to Southeast Asia. This is also a flower starting with K that is edible. Many cultures eat it in salads, stir-fries, and stews. The plant is considered a noxious weed in the United States.

Perennial Flowers That Start With K

Kaffir lily (Clivia miniata)

This South African native woodland flower has beautiful yellow, trumpet-like flowers that are bordered by red at the edges.

It can be planted as an annual in cooler climates or can be cultivated as a houseplant. It takes 2-3 years to bloom and can reach 18 inches at maturity.

King protea (Protea cynaroides)

This broad-leaf evergreen is native to South Africa and is its national flower. It blooms throughout the year as long as it’s grown in full sun and well-drained soil.

Of all the flowers that start with a K, this one is best known for having huge flower heads that can grow up to 12 inches.Truly a massive king among flowers!

King’s mantle (Thunbergia erecta)

Native to Western Africa, the king’s mantle is a perennial in Zones 10 to 11. It’s grown as an annual in cooler climates.

With purple flowers, this viney bush reaches heights of 6 feet. With proper drainage, it can grow in any kind of soil.

Kiss me not (Euphorbia milii)

Originating in Madagascar, the kiss me not flower is usually grown as an indoor plant or annually. Its stems are spiny and emit a toxic white sap when cut.

Flowers bloom throughout the year, however, they are especially sensitive to frost and wet soil. True to its name, the kiss me not flower are surrounded by spiky thorns that can prick the skin if not handled with caution.

Knapweed (Knautia macedonia)

Knapweed blooms burgundy flowers from July to September. It’s native to central Europe. Knapweed is grown in full sun and is sensitive to wind and high temperatures.

The flowers attract pollinators and self-seeds. This makes it one of the most ideal plants for a healthy garden!

Kniphofia uvaria (Red hot poker)

Also known as the Red Hot Poker, this plant is a perennial up to Zone 5. It is native to Southern Africa and grows up to 4 feet tall.

The flowers are spikes of yellow orange and red, making them look like live pokers. You can grow them in cooler environments; however, they will need winter protection and stability from the wind.

Kolkwitzia amabilis (Beautybush)

This flower is native to Eastern China. It has beautiful bell-shaped pink flowers that bloom prolifically, which is why it’s also known as “beautybush.”

The beautybush can tolerate many soil types, including clay, making them good starter plants for beginners. They are related to Weigela and have leaves that change from green to bright yellow in autumn.

Knautia arvensis (Field scabious)

This flower is native to central Europe. It is often found in meadows and prefers to grow in grassy areas with well-drained soil. It can have tiny and lightly-colored pink or light purple flowers.

Historically, the plant has been used to treat skin conditions, like scabies and bubonic plague, which is why its common name of “field scabious” is derived from the Latin word, “scabere” which means “to scratch.”

King’s spear (Asphodeline lutea)

The king’s spear is native to Northern Africa, western Asia, and southeastern Europe. It can be propagated by seeds or division.

A perennial in Zones 6 to 9, the king’s spear blooms from May to June. Although it is resilient, it grows on rocky landscapes and prefers limestone soil.

It has a yellow spire of star-shaped flowers that are showy and fragrant. For an ancient Greek recipe, try mashing the roots of the king’s spear with oil and figs!

Kirengeshoma palmata (Yellow-Wax Bells)

This flower is native to Northeast Asia. Many flowers that begin with K are yellow, but these are the smallest on the list.

It’s often found in woodlands and woodland edges and blooms from June to July. It is a perennial in Zones 5 to 8.

Flowers That Start With K In The Cactus Family

Kalanchoe (Kalanchoe blossfeldiana)

Kalanchoe is the one of the most widely known succulent that begin with the letter K, and for a good reason!

It has gorgeous blooms and can be grown either as a houseplant or outside in warm climates. They’re perfect as gifts for friends and family.

Koko (Echinopsis formosa)

Koko are a kind of cacti native to western Argentina and Chile, where they grow on rocky slopes.

They tend to be globe-like in shape but can grow in columns. They have bright yellow flowers. Sensitive to humidity, koko cacti need full sun and well-draining soil.

Karoo rose (Lapidaria margaretae)

The karoo rose has unique geometrical, stone-shaped leaves with yellow flowers. Native to southern Africa, it grows best in bright light with well-draining soil. It also does well in warm and humid areas.

Spring Flowers That Start With K

Kangaroo paw (Anigozanthos)

Native to southwestern Australia, this plant has vibrant red flowers that look like a kangaroo’s paw. This is definitely one of the more peculiarly-shaped flowers that begin with K.

Its flowers appear in spring and bloom into summer. It’s pollinated by birds and can be propagated by seed or by division. They are annuals in climates outside of native habitats.

Kalmia latifolia (Mountain Laurel)

This broad-leafed evergreen perennial is native to North America and is the state flower for both Pennsylvania and Connecticut. It grows on slopes, in rocky conditions, and in woodlands.

It can grow in full sun or full shade and blooms from late spring to early summer. Although pretty and colorful, this plant is highly toxic.

King Solomon’s Seal (Polygonatum)

This perennial has an architectural structure. It has white bell-shaped flowers that dangle from the stem. The flowers last for a few weeks in spring and then the fruits appear. It grows best in partial to full shade.

This plant and its parts have been traditionally used in Chinese recipes and their medicine, making it one of the more versatile flowers that start with a K.

Frequently Asked Questions (FAQ) About Flowers That Begin With K