Lovely flowers that start with the letter K include an amazing variety of blooming plants that are sure to brighten up any yard or garden area! These beauties vary from the kousa dogwood tree and Korean spicebush to the bold colors of the kniphofia (or African flame flowers)!
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Kalanchoe
Scientific Name: Kalanchoe blossfeldiana
Type Of Flower: Perennial
When Do They Bloom? Varies Depending On The Region
Kalanchoe is a slow-growing plant that has over 100 different varieties to choose from! This plant can be grown both indoors as a house plant and outside in gardens. It can thrive in full sun or partial shade. It will produce red, orange, yellow, pink, or white flowers throughout the year in the right conditions.
This plant is native to Africa but grows well in other regions that have sandy, well-draining soil. Be sure to not expose this plant to frigid temperatures or frost, so bring it indoors during winter months if possible!
Quick Fact: Kalanchoe is toxic for pets, but not humans!
Kniphofia
Scientific Name: Kniphofia
Type Of Flower: Herbaceous Perennial
When Do They Bloom? Spring & Summer
Kniphofia is a very bold flower that ombré blooms that fade from deep red to yellow. There are more than 60 species of this vibrant South African native. In some regions, it is considered invasive due to its ability to easily flourish.
This plant loves the sun and grows up to 4 feet tall, which makes it a great choice for paths and walkways. Be sure to prune them regularly when the blooms begin to fade to help new growth.
Quick Fact: Kniphofia plants are also called red hot poker, torch flower, and African flame flowers!
Kousa Dogwood
Scientific Name: Cronus kousa
Type Of Flower: Tree
When Do They Bloom? Late Spring & Early Summer
The kousa dogwood is a special tree that produces lovely white bracts that look as though they are flowers. The bracts are bright white, rosy pink, or crimson red with 4 small petals and green foliage contrasting underneath.
These trees are native to China, Korea, and Japan but grow well in other regions as well. Expect this tree to grow up to 30 feet tall when planted in full sun or a little shorter if planted in the shade.
Quick Fact: The kousa dogwood tree produces berries that attract birds and deer!
Knautia
Scientific Name: Knautia macedonica
Type Of Flower: Herbaceous Perennial
When Do They Bloom? Summer & Fall
Knautia is a great plant to grow if you enjoy having fresh-cut flowers in the summer! Knautia flowers are a gorgeous shade of pink. They grow to be about 3 feet tall, which makes them the perfect addition to your favorite vase!
Grown best in full sun, this European native thrives in fertile soil and will bloom well into fall. This plant can grow beyond its borders, so be aware that it may need a little extra care to keep it at bay.
Quick Fact: Knautia plants will attract beautiful butterflies to your garden!
Korean Spice Bush
Scientific Name: Viburnum carlesii
Type Of Flower: Flowering Shrub
When Do They Bloom? Spring
The Korean spicebush is beautiful and fragrant, smelling similar to clover in the spring. This plant produces clusters of flowers that are mostly white with a tinge of pink, they sometimes have small red berries that grow later on during the summer months.
Korean spicebush grows to be about 6 feet in height and grows best in moist, acidic soil. It is native to Korea and Japan and needs full to partial sunlight to reach its maximum potential.
Quick Fact: The Korean spicebush is not the same as the California spicebush!
Kiss Me Over The Garden Gate
Scientific Name: Polygonum orientale
Type Of Flower: Annual
When Do They Bloom? Summer & Fall
Kiss me over the garden gate plants don’t only have a big name, they have a big presence, too! These plants grow up to 8 feet in height and produce lovely magenta-colored flowers.
These flowers are native to China but have deeply rooted themselves in the United States! They grow rapidly in warm weather and grow toward the sunlight, so full sun is suggested for this beautiful plant.
Quick Fact: Kiss me over the garden gate flowers are also called princess feathers, lady’s finger, and oriental persicary!
Kangaroo Paw
Scientific Name: Anigozamthos spp
Type Of Flower: Herbaceous Perennial
When Do They Bloom? Spring, Summer, & Fall
If you love unique plants, then you will love kangaroo paw! This plant has bold colored flowers that are a plethora of colors ranging from red, orange, yellow, pink, purple, and white! Each flower looks similar to a barnacle or kangaroo paw, hence the name!
Kangaroo paw ranges in height from 2 to 10 feet depending on where it is planted and how much direct sunlight it receives. If you want full blooms and maximum growth, at least 6 hours of direct sunlight is best for this plant.
Quick Fact: Kangaroo paw prefers temperatures above 70 degrees Fahrenheit!
King’s Mantle
Scientific Name: Thunbergia erecta
Type Of Flower: Shrub
When Do They Bloom? Spring, Summer, Fall
King’s mantle is a shrub that produces lovely purple flowers with bold yellow centers. This plant grows to be very dense. It makes great hedges and provides ample amounts of privacy!
Grow king’s mantle in warm climates if you want a year-round bloomer and provide it with full or partial sunlight to keep it blooming! It will max out at about 12 feet in height, so if you want a smaller shrub, be sure to prune it accordingly.
Quick Fact: King’s mantle is also called bush clock vine!
Korean Maple Tree
Scientific Name: Acer pseudosieboldianum
Type Of Flower: Tree/Shrub
When Do They Bloom? Spring
The Korean maple tree is a medium-sized tree that grows to be roughly 25 feet in height. It is a slow-growing tree that can be grown indoors for its first few years, then replanted in rich, well-draining soil.
The Korean maple tree is native to Korea, China, and parts of Russia. It tolerates full or partial sunlight and will produce warm red, yellow, and orange foliage.
Quick Fact: Korean maple trees are also called purple-bloom maple trees.
Kobus Magnolia
Scientific Name: Magnolia kobus
Type Of Flower: Deciduous Tree
When Do They Bloom? Spring
The Kobus magnolia is a flowering tree that grows to be around 30 feet in height. It produces fragrant white flowers that bloom just in time for spring. This tree also grows small fruits that attract birds!
Kobus magnolia is known to be a slow grower that is relatively low-maintenance once it has been settled in. Plant your tree in an area that receives at least partial sunlight or more, and it should grow with ease.
Quick Fact: Kobus magnolia trees are also called northern Japanese magnolia trees!
Kiwi Vine
Scientific Name: Actinidia arguta
Type Of Flower: Perennial
When Do They Bloom? Spring
The Kiwi vine, or hardy kiwi vine as it is also referred to, is related to the kiwi fruit. This vine also produces a small fruit that is sweet and tastes similar to the standard kiwi. This plant grows quickly, but takes a few seasons to bear fruit, so patience is needed!
This vine is native to Asia but grows all over the world. It requires full or partial sunlight and loamy soil and needs structure for support. Plant kiwi vines along fences, trellises, or other areas that will provide support, and watch them grow up to 30 feet long!
Quick Fact: Kiwi vines have small white flowers that
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