Growing Carnations: When, Where & How To Grow Carnation Flowers (2024)

Looking for a little something to brighten up your garden that doesn’t take too much effort? We’ve got just the thing you’re looking for. Carnations are not only bright and beautiful but they’re also really easy to grow.

Read on for some tips and tricks on how to grow carnations in your garden.

Jump To a Section Below

  • What are carnations?
  • How to grow carnations
    • When
    • Where
    • How
  • Caring for carnations
  • Common carnations questions
    • Are carnations easy to grow?
    • When do carnations bloom?
    • Do carnations come back every year?
    • Do you need to cut off the flowers after blooming?
    • Are carnations poisonous to dogs?
    • Can carnations grow in pots?
    • Do carnations spread?
    • How long do carnation plants live?
    • Why are my carnations dying?
  • How to press carnations

What are carnations?

Carnations or Dianthus caryophyllus are bright flowers with a double layer of silky petals that come in an array of colours. They are a popular choice for cut flowers because of their long, sturdy stems. Along with Snowdrops, they’re the January birth flower.

Carnations have a long history and each colour has a unique symbolism and meaning. When you look into it, it’s fascinating to see how the flower has grown to have such strong cultural relevance in so many countries and that it represents such a wide range of strong emotions.

How to grow carnations

Growing Carnations: When, Where & How To Grow Carnation Flowers (1)

When

The best time to plant carnations is during transition seasons like spring or autumn when it’s not too hot and not too cold. If the mood strikes in winter, you can also start sprouting your carnation seeds inside the house and then transfer them out into the garden when the temperature rises again.

Where

It’s important that your carnation seeds get at least four hours of sunlight per day, so make sure that when you’re choosing where to plant them that there is adequate sunlight. Drainage is also key, so pick a bed that’s deep enough to accommodate the carnation’s strong root system.

How

Once you’ve chosen a good, sunny patch of soil, plant your carnation seeds about 30cm apart, right under the surface of the topsoil. To make sure the flowers are bright and healthy, use a bit of compost so that the soil is extra fertile.

If you opt to plant them indoors first, make sure you choose a container with enough drainage, and sprinkle the seeds on the surface, covering them with a soft layer of soil. Moisten the soil, pop the whole container in a plastic bag and voila, you’ve got your very own hothouse!

You should see action within a few days and once your seedlings grow to about 11cm or so, you can transfer them into the garden. Doing it this way also increases the chances that your carnation flowers will bloom within the first year, so that’s an added bonus.

Caring for carnations

Growing Carnations: When, Where & How To Grow Carnation Flowers (2)
When you’ve planted new carnation seeds, it’s important in the first few weeks that they get a lot of water in order to establish their root systems. It’s crucial to have soil with adequate drainage because the water needs to get all the way down to the deepest root. Water your carnations thoroughly once a week until a root system is nice and firmly in place. After that, you can water them when the topsoil is dry.

One key step in caring for carnations and keeping them healthy and strong is to prune them carefully. When your plants are still in the early stages, you can prune by removing old flowers and leaves so that more water and nutrients can be dedicated to the healthy parts of the plant.

Once your carnation is blooming, you’ll need to prune it to promote new growth. In the summertime, pruning your plant will keep it generating new flowers. Cut the spent flowers just above the leaf node and soon you’ll see new growth in its place.

Flowering plants like carnations have specific fertilizer that helps them grow. It’s best to add a good fertilizer to your carnations once every two months or so, to ensure they’re getting the TLC they need.

Common carnations questions

Are carnations easy to grow?

Yes! Carnations are actually one of the easiest flowers to grow and they’re perfect for anyone looking for something easy to get started on in their garden.

When do carnations bloom?

Carnations usually bloom in late spring up until early summer. Their blooming period can last up to eight weeks which is another reason why they’re such a firm favourite for brightening up your garden.

Do carnations come back every year?

Yes! Given the conditions are right, your carnation plant will bloom every year.

Do you need to cut off the flowers after blooming?

It’s best to remove spent carnation flowers so that the nutrients and water can be used to fuel new growth instead.

Are carnations poisonous to dogs?

Unfortunately, yes. A toxin in carnations can cause both dogs and cats skin irritation or intestinal issues so best to keep this bloom away from your furry friends.

Can carnations grow in pots?

Yes, absolutely! Carnations a great way to add a little bit of colour to an indoor space. Just make sure they’ve got adequate drainage, sunlight and water.

Do carnations spread?

Carnation bushes can spread once you’ve planted them, which is why it’s important to plant them far enough apart. If the plants get too close to one another, they can block out each other’s sunlight and affect their growth.

How long do carnation plants live?

Compared to other flowering plants, carnations have a relatively short lifespan. They usually only last three or four years before their blooms begin to fade.

Why are my carnations dying?

The most common cause of carnations not flourishing as they should is water. Giving your new plant babies either too much or too little water can leave them limp and lifeless. If your soil is too moist, your roots will rot and if it’s too dry, your flowers won’t have the moisture they need to keep going. As a first step, stick your finger into the soil to see which you’re dealing with.

How to press carnations

Growing Carnations: When, Where & How To Grow Carnation Flowers (3)

Carnations are a favourite in the flower pressing community. Their layers of brightly coloured petals translate beautifully when pressed. Whether you’ve got a special flower press or a trusty pile of books that you like to use, it’s really easy to make these pretty blooms last.

When you’re putting your carnation flower into your press, make sure it’s stem side down so that you can smooth out the petals before placing your piece of paper over the top of the bloom. Leave your press in a cool, dry place for at least three weeks so that the moisture has time to leave the petals.

If you’re in a rush and need a pressed carnation for a birthday presentor wedding anniversary that’s in a few days time, you can try drying the flower out in the microwave. Pop it in for 30-second increments and keep an eye on it until it’s sufficiently dry.

Carnations have a long and interesting history, and they’re loved by flower fundi across the globe for their bright and diverse hues. The best part? You don’t even need green fingers to add these blooms to your flower bed. They’re that easy.

Growing Carnations: When, Where & How To Grow Carnation Flowers (4)

Lily Thornton

Lily’s love for flowers and plants was nurtured in her grandmother’s vibrant garden. Over the years, this affection blossomed into a full-fledged passion for horticulture.

With formal training in botany and countless hours in her own backyard oasis, Lily has cultivated a deep understanding of plant care and garden design.

Growing Carnations: When, Where & How To Grow Carnation Flowers (2024)

FAQs

Growing Carnations: When, Where & How To Grow Carnation Flowers? ›

For success planting carnations, start with a sunny spot where plants will receive at least four hours of sun each day. They can grow in less sun, but stems will tend to be floppier with fewer flowers. In warmest regions, protect carnation plants from the hottest sun of the day. A spot with morning sun is ideal.

Where is the best place to plant carnations? ›

Choose a full sun or light shade spot, with a free draining soil or grow carnations in pots. Carnations prefer to grow in temperate / Mediterranean like climates with hot dry summers and mild wet winters. Most varieties are frost tolerant.

Do carnations come back every year? ›

Carnation seeds can be sown outdoors in the ground once all danger of frost has passed. These direct-sown carnations may not produce flowers in the first year. However, if grown in a mild growing zone, they will be perennials and come back up in the spring. Sow seeds ¼” deep and keep seeds moist until they sprout.

What month do you plant carnations? ›

Carnation seeds may be started indoors in the springtime 6 weeks to 2 months before the last frost. If you chose to sow them directly outdoors, be sure that the last frost has occurred. If your winters are mild, carnations seeds may be sown outside from spring until early fall.

Do carnations do well in pots? ›

Loved as a cut flower and for their fragrant fringed blooms, Carnations (Dianthus caryophyllus) are wonderful perennial plants to include in your garden. They're ideal for cottage gardens, flowers beds or growing in pots.

Do carnations bloom all summer? ›

The ease of growing carnations in your own garden—plus the aesthetic diversity—makes them a versatile plant for arranging in your home. "They bloom all summer long from an early spring sowing, and their long stems and extremely long vase life make them an ideal flower for any type of arrangement," says Benzakein.

Do carnations multiply? ›

Carnation (Dianthus caryophyllus Linn) is a major cut flower crop. Multiplication of carnation is mainly through shoot tip cuttings. A large number of mother plants need to be maintained for production of shoot tip cuttings.

Are carnations poisonous to dogs? ›

Carnations are toxic to not just dogs and cats, but horses as well! While this flower is known as a more mild toxicity, it is important to note that carnations can cause gastro-intestinal symptoms, as well as dermatological symptoms. Carnations should be placed in an area pets cannot access.

Is carnation easy to grow? ›

Carnation seeds are easy to grow but plants take a long time to mature. Expect flowers all summer long if you're able to start plants early. You might be able to find carnation plants that feature the old-fashioned flower types at a garden center.

Can you grow carnations in your yard? ›

Types of Carnations

Carnations come in annual, biennial and perennial types, so depending on your space, there is sure to be a variety that will fit your garden. These versatile plants can be planted in flower beds or grown in containers such as pots.

What is the difference between Dianthus and carnation? ›

Dianthus caryophyllus (/daɪˈænθəs ˌkɛəriəˈfɪləs/ dy-AN-thəs KAIR-ee-ə-FIL-əs), commonly known as carnation or clove pink, is a species of Dianthus native to the Mediterranean region. Its exact natural range is uncertain due to extensive cultivation over the last 2,000 years.

Are carnations invasive? ›

Carnation spurge. Populations of this toxic and aggressive invasive species have been exploding in Southern California over the last decade. October 2017 - Populations of an aggressive and toxic invasive plant have been exploding in Southern California over the last decade.

Can I plant carnations in full sun? ›

Carnations prefer full sun, and a well-draining, fertile soil that's slightly alkaline, with a pH around 6.7 to thrive. Choose a planting site that receives at six hours of sunlight per day.

Are carnations low maintenance? ›

If you are looking for a low maintenance and space saving flower plant for your urban space, the carnation is an ideal candidate. This dwarf variant grows well in containers and thrives perfectly well in our hot tropical weather. It requires little attention except for occasional pruning and deadheading.

Do deer eat carnations? ›

Most are low, growing only 10 to 20 inches tall, though some carnations can reach three feet tall. Pinks (Dianthus plumarius) multiply easily and are deer resistant. The fragrant blossoms come in many colors and make excellent cut flowers.

Can I grow carnations indoors? ›

Carnations grow well indoors and will benefit from temperatures between 60° and 70° F. Be sure to never let the plant go below freezing temperatures.

Can carnations get too much sun? ›

Although they do best in full sun, carnations are fine with some partial shade. Too much bright afternoon sun might cause the petals of brightly colored carnations to fade. Plant your carnations where they'll get morning sun, if possible, to keep the flowers looking fresh and the colors bright.

How much room do carnations need to grow? ›

How to Plant Carnations. Space plants about 6 to 12 inches apart. Dig a hole and keep the root ball level with the soil surface, pressing soil down firmly when you backfill around the plant. Add compost when planting, then mulch to retain moisture and control weeds.

Are carnations toxic to dogs? ›

Carnations are toxic to not just dogs and cats, but horses as well! While this flower is known as a more mild toxicity, it is important to note that carnations can cause gastro-intestinal symptoms, as well as dermatological symptoms. Carnations should be placed in an area pets cannot access.

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