Home » Flowers That Start With K | 21 Beautiful Flowers

Flowers That Start With K | 21 Beautiful Flowers

This list of flowers that start with K is aimed at offering ideas for the novice and experienced gardeners. When planning a garden, there is a lot to take into account, and the plants are everyone’s favorite part.

However, it can be difficult to know which plants are right for your garden. Of course, you need to like the look of them, but they also need to be able to adapt to your environment.

Woman gardening in the backyard

So, I have compiled this list of flowers that start with K and it includes very important metrics. These metrics involve requirements regarding soil pH, water, and the sun.


Flower Names That Start With K

I’ve narrowed down this list to plants with flowers that start with K and it includes other information as well. This means that all these flowering plants will include additional information to help you make your choice.

This can be something such as whether they do well in pots or beds or whether they need higher-level care. So, without further ado, let’s get right into it:


1. Kaffir Lily (Clivia Miniata)


Flowers that start with K - Kaffir Lily

The kaffir lily is also known as a bush lily and they grow exceptionally well indoors. This makes them favorites for the home, greenhouse, or conservatory as their blooms are beautiful.

The plant grows to be about 18 inches tall and the flowers are vibrant orange and trumpet-shaped. The flowers can come in other colors, but the orange with the yellow center is the most popular.

Water: Regularly

Sun: Shade

Soil pH: 6.1 – 7.8


2. Kalanchoe (Crassulaceae)

Potted decorative succulent Kalanchoe blossfeldiana in different colors

Originally native to tropical Africa and Madagascar, Kalanchoe is part of the succulent family. There are 100 plus different plants in the Kalanchoe genus but the best-known of the lot is the Kalanchoe blossfeldiana.

This beautiful flowering plant has scalloped leaves and vibrant clusters of small flowers. It is one of the easiest to care for and most striking houseplants that you can find.

Additionally, the flowers will bloom continually if light exposure is well-controlled within the home.

Water: Complete saturation only every few weeks

Sun: Full sun to partial shade

Soil pH: 5.8 – 6.3


3. Kalmia Latifolia (Kalmia Latifolia)

Flowers that start wtih K - Kalmia latifolia

The Kalmia latifolia plant has deep green foliage and very interesting flowers. What makes the flowers so interesting is that the buds are deep pink once they appear but open to pale pink.

This gives the plant a very long flowering life and two distinctly different appearances over the year. This low-maintenance plant will do very well in a wildflower or cottage garden and is easy to care for.

Water: Moderate

Sun: Full sun

Soil pH: 4.5 – 5.5


Recommended Reading


4. Kangaroo paw (Anigozanthos)

Kangaroo paw plant

There are 11 species and a few sub-species of the kangaroo paw plant, and it is native to Australia. The reason why they’re called kangaroo paw has something to do with what the flowers look like.

This plant’s flowers are very unique, tubular, and covered in a velvet-like fuzz. The fuzziness, particularly, is what gives it the appearance of a kangaroo, or animal, paw.

Water: Once per week

Sun: Full sun

Soil pH: 6.1 – 6.5


5. Kangkung (Ipomoea Aquatica)

White Ipomoea aquatica or Kankung

The kangkung plant, also called kangkong plant, is an aquatic tropical plant very much like a vegetable. The English name for this plant would be river or water spinach and the shoots are tender and edible.

It is a creeper, so it spreads easily and can quickly become invasive. However, if you keep it in check, it flowers beautifully and serves its purpose as a side dish.

The flowers of this plant are beautiful, large, and white with a deep purple center.

Water: Grow near or in water

Sun: Full sun, can tolerate partial shade

Soil pH: 6.0 – 7.0


6. Keli Flower (Cannaceae)

Flowers that start wtih K - Keli Flower

The keli flower is often called a lily even though it isn’t really a lily, but it does resemble one. They are tropical and subtropical plants with big banana-shaped leaves and bright, colorful flowers on tall stems.

They can grow fairly large, about three to six feet tall, and almost three feet wide. If they have enough water and sunlight, they will easily bloom all summer in a riot of color.

Water: Keep moist or grow near or in water

Sun: Full sun, can tolerate partial shade

Soil pH: 6.0 – 6.5


Recommended Reading


7. Kidney vetch (Anthyllis Vulneraria)

Bumblebee flying above a kidney vetch flower

The kidney vetch plant is easily noticeable due to its small and bright yellow flowers and woolly appearance. It is a coastal plant and usually grows on dunes but it can also be found in grasslands and cliffs.

It spreads easily so this is one of the flowers that start with K that will give you bang for your buck. You can easily cover your entire garden if you plant this just once.

Water: Moderate

Sun: Full sun

Soil pH: 4.8 – 8.0


8. King Protea (Protea Cynaroides)

Flowers that start with K - King Protea

The king protea is native to South Africa and it is a wonderful member of the fynbos family. This striking flowering plant is a thick-stemmed and bushy shrub with very large flowers.

The flowers are slightly fuzzy and have a conical center and hard, oblong, pink petals. They look fantastic in cut arrangements and bouquets and are sometimes referred to as giant proteas.

Water: Twice to three times a week

Sun: Full sun with good air movement or enough wind

Soil pH: Less than 6.0


9. King Solomon’s Seal (Polygonatum)

Flowers that start wtih K - King Solomans Seal

King Solomon’s seal, also sometimes called just Solomon’s seal, is an entire genus encompassing flowering plants. Of all the plants and flowers that start with K, I would recommend this one for shady gardens.

Most flowers and plants do well in the sun, but oftentimes gardens are shaded. Therefore, if you’re looking for a shade-lover, this is the plant for you.

The leaves of this plant are long and green and the flowers are white and bell-shaped. They dangle on elegant arches and look beautiful when planted underneath trees as cover.

Water: Keep moist

Sun: Shade

Soil pH: 5.0 – 7.0


Recommended Reading


10. King’s Mantle (Thunbergia Erecta)

Flowers that start with K - Kings Mantle

The king’s mantle genus occurs in Asia, Madagascar, and Africa, and it is known for tubular flowers. The flowers are deep violet, sometimes blue, and have a yellow center.

They look delicate and wind-blown and the actual plant can be trained as a creeper. This means that you can elegantly grow them over a trellis or archway and even grow it as a hedge.

I like this plant because it grows very fast and it needs little maintenance when planted in warmer areas.

Water: Regularly

Sun: Sun or semi-shade

Soil pH: Acidic, neutral, or alkaline


11. King’s Spear (Asphodeline Lutea)

Asphodeline lutea or kings spear blooms in the botanical garden

The king’s spear flower is edible and it has a sweet and rather mild taste which is quite enjoyable. The flowers don’t last very long when in bloom, so they’re perfect for regular picking.

This means that you can easily harvest them continuously throughout the flowering season for your salad. The leaves and roots are also edible, but the roots require a lot of finesse in order to make them palatable.

Water: Moderate

Sun: Full sun or partial shade

Soil pH: 6.0 – 8.0


12. Kiss-me-not-plant (Euphorbia Milii)

Flowers that start wtih K - Kiss me not flowers

The kiss-me-not-plant has a rather unusual name, and it gets even stranger when it comes to its other names. It is also known as the crown of thorns or the Christ plant.

It is a very hardy shrub that can be seen as being part of the cactus or succulent family. They do well in rock gardens or in pots and the flowers are usually a bright red.

Water: Occasional

Sun: Full sun to dappled shade

Soil pH: Below 7.0


Recommended Reading


13. Kiss me over the garden gate (Polygonum Orientale)

Kiss Me Over The Garden Gate Flowers

This plant is native to China and it is a fast-growing flower that will adapt to most climates. This, of course, means that it is easy to care for and easy to maintain, ideal for novice gardeners.

The flowers are tall yet sturdy and vary from white to red. The leaves are slightly fuzzy and they make quite attractive garden additions.

Water: 1 inch per week

Sun: Full sun

Soil pH: Acidic, neutral, or alkaline


14. Kiwi Fruit (Actinidia Deliciosa)

Flowers that start with k - kiwi fruit

Now, this is one of the flowers that start with K that most people will be familiar with. The kiwi fruit is an impressive climber that will produce delicious fruits that you can harvest.

The cup-shaped flowers are white in color and you will be able to enjoy them from the start of spring.

Water: Daily

Sun: Full sun

Soil pH: 5.5 – 7.0


15. Knautia Arvensis (Knautia Arvensis)

Knautia arvensis

Knautia arvensis is an attractive wildflower that will look great in wildflower or cottage gardens. The flowers are pale lilac in color and resemble a beautiful and dainty little pincushion.

They look great when planted as a border and also look fantastic in cut arrangements.

Water: Regularly

Sun: Full sun

Soil pH: 6.6 – 7.8


Recommended Reading


16. Knautia Macedonica (Knautia Macedonica)

A brightred Scabious, Knautia macedonica,

The Knautia macedonica, like the Knautia arvensis, looks fantastic in cut and dried arrangements. This means that they make excellent long-lasting indoor flowers.

The flowers of Knautia macedonica are round and come in a variety of beautiful colors. They also tend to attract bees.

Water: Occasionally

Sun: Full sun

Soil pH: 6.5 – 7.5


17. Kniphofia (Asphodelaceae)

Flowers that start with k - Kniphofia

Kniphofia is also known as red-hot pokers and the flowers look exactly as that name suggests. The flowers are borne on tall stalks and range from orange to bright red.

The flowers look like flares or pokers that have been lit on fire and are striking in any garden. Coincidentally, the flowers are edible and taste rather like honey and the roots have medicinal purposes.

Water: Regularly

Sun: Full sun or partial shade

Soil pH: 6.0 – 7.0


18. Kobus Magnolia (Magnolia Kobus)

blossoming Magnolia kobus flower close-up

Kobus magnolia is a lovely option if you’re on the hunt for a tree that carries flowers that start with K. It is a fairly small tree and the flowers are bright white and heavily perfumed.

They also produce a sort of dry fruit as a follicle which is orange to red in color. The tree is easy to care for and therefore popular in gardens across the world.

Water: 1 inch per week

Sun: Full sun or partial shade

Soil pH: 5.6 – 7.5


19. Kohlrabi (Brassica Oleracea)

Flowers that start with k - kohlrabi

This may be another of the edible plants on this list that you are familiar with. The kohlrabi is a fascinating little vegetable that you can find in most grocery stores.

It may be odd-looking but it is rich in vitamin C and B as well as other vitamins and minerals. It tastes almost like a mixture between cabbage and radish and you can eat it raw or cooked.

Water: 1 – 1.5 inches per week

Sun: Full sun

Soil pH: 6.0 – 7.5


20. Kolkwitzia (Linnaea Amabilis)

Flowers that start with K - Kolkwitzia

Kolkwitzia is a shrub and it is very dense with clusters of beautiful flowers dotted among its foliage. The leaves fall in the winter, but it remains attractive because of the streaky and peeling bark.

This shrub is easy to grow and will look great in a bushy garden among other large shrubs and trees.

Water: Moderate, avoid overwatering

Sun: Full sun

Soil pH: 5.0 – 8.0


21. Kunzea (Kunzea Ambigua)

Flowers that start with k - Kunzea

Kunzea is also called tick bush and it is native to Australia. This plant tends to form dense thickets and has masses of small, white, tufty flowers.

The flowers have a very pleasant smell and they tend to attract a lot of birds to your garden. An interesting fact is that the kunzea produces an oil that is a natural tick-repellent, which makes it very useful.

Animals tend to shelter under it to protect themselves from ticks and other pests.

Water: Little to none beyond natural rainfall

Sun: Full sun or light shade

Soil pH: Acidic, neutral, or alkaline


Choosing Plants That Start With K

There are so many plants and flowers to choose from when planning a garden that it can be overwhelming. I have broken down some of the most popular and low-maintenance plants in alphabetized lists.

These lists, including this one, also feature important metrics like soil pH, sun and water requirements. It is imperative to analyze your garden environment before deciding which flowers you like the look of.

That way you ensure success when planting. Happy gardening!