Dianthus Flower

Facts About The Dianthus Flower

Even if you haven’t heard of a dianthus flower before, chances are you’ve heard of one of its species. In fact, the term “dianthus” is actually the genus name for over three hundred flowers, including the ever-popular carnation, sweet William, and the “pink” varieties such as alpine pink and French pink. Most of the flowers in the dianthus genus are perennial, meaning that they come back every year, although here are a few annuals (one-time bloomers) and biennials (blooming twice a year).


These flowers come in a large variety of colors and are well known for being hardy garden flowers. If you’re looking for a species or two of flowers to add to your garden, you might want to consider a dianthus flower. Not only will you be spoiled for choice of color and variety, but they are also pretty easy to grow—even for a novice gardener! The following guidelines can be used to plant almost any variety of dianthus flower around, so regardless of the type of decide to plant, you won’t go wrong if you follow the steps below.

When and Where to Plant Dianthus

Dianthus flowers like warm weather, so most of them bloom in mid to late spring when the temperature gets between 65 – 75 degrees. If you plan to germinate or “start off” the seeds indoors, then be prepared to do so 6 weeks before the last frost is expected. If you want to plant the seeds outside, wait until the threat of frost is gone and the ground has a chance to warm up. Most of the flowers in this genus are hardy to cooler weather, but they really can’t tolerate hot weather unless they are planted in a shady weather. If you want to get a longer life out of your plants, try choosing an area that best suits your climate. If you typically experience a temperate climate during the spring, then pick a nice, sunny spot where your dianthus can flourish. On the other hand, if springtime typically brings much warmer temperatures where you live, then try planting the flowers in a shady area, such as under a tree or larger plant.

Planting the Seeds Indoors

Germinating the seeds indoors is a great way to ensure the plants get a good start so that they can form strong root systems. You can use either seed trays or small pots for the germination process, although it is usually less costly to use trays. Place each seed about a quarter of an inch into the soil, cover, and give it a bit of water. Keep the tray in a sunny spot or under a heat lamp set to about 70 degrees F. Water again when the soil feels dry to the touch. When the ground is warm enough, it is safe to put the sprouts outside. Dig a hole into the ground about twice the size of the roots of the plant. Place the roots in the hole and cover with soil. Be sure that the top of the roots sits just under ground level. Water the soil after planting and during dry spells in the weather.

Planting the Seeds Outdoors

If you want to plant the seed directly into the ground, it’s best to wait until the threat of frost has gone and the ground has a chance to warm up. When planting the seed, place it about a quarter of an inch into the ground. Dianthus flowers can be planted on their own, but are often planted in groups or clusters. If planting more than one, space the seeds about three inches apart. Cover the seeds lightly with soil and water them. Again, if the area experiences a dry spell, take care to water the plants regularly until the rain resumes.

And that’s all there is to planting a dianthus flower. When the flowers die, snip them to the ground and, if they’re perennials, they’ll return again next year!