Did you planted your dianthus somewhere where it can get at least 6 hours of sunlight?
Did you planted your dianthus in a well-drained soil?
Do you protect your plants from freeze during winter?
Do you water your dianthus regularly?
Do you feed your dianthus frequently?
Do you propagate your dianthus from time to time?
Do you keep your dianthus free of pests and diseases?
Full sun is important for thriving plants, so choose a location that gets at least six hours of light each day. It's best to plan them early in the spring season. They will then be established before the hot summer weather.
Stem rot can be a problem in dianthus plants if the soil doesn’t drain well. If the soil is heavy clay, consider containers or raised beds for plants. Dianthus plants like neutral to slightly alkaline soil pH. If your soil pH is below 7.0, correct the acidity with an application of dolomitic limestone.
Dianthus can tolerate a light frost, but don't like a deep freeze. Some hardier plants can survive outdoors in the winter. Try a frost blanket if temperatures remain below 40 degrees Fahrenheit.
Dianthus flowers need weekly watering. Try one inch of water once a week. Always keep the soil moist, but avoid water-logging the soil which will promote root and stem rots.
Dianthus plants are light feeders. A shovelful of compost worked into the soil once a year is enough to nourish the plants.
Even the perennial dianthus varieties are short-lived in the garden. Save seeds from favorites to plant the following season where old plants fail to come up.
Good job! You are taking good care of your dianthus.
Spider mites and aphids suck the sap from perennial dianthuses and also spread plant viruses. A strong blast of water from the hose or an application of insecticidal soap can solve most insect problems.
https://www.thespruce.com/perennial-dianthus-flower-1316045
https://homeguides.sfgate.com/dianthus-problems-25753.html
Sreten null
Hi! I’m Sreten Filipović. I graduated from the Faculty of Agriculture at the University of Belgrade, with a master's degree in Environmental Protection in Agricultural Systems. I’ve worked as a researcher at Finland's Natural Resources Institute (LUKE) on a project aimed at adapting south-western Finland to drought episodes. I founded a consulting agency in the field of environment and agriculture to help farmers who want to implement the principles of sustainability on their farms. I’m also a founding member of the nonprofit organization Ecogenesis from Belgrade whose main goal is non-formal education on the environment and ecology. In my spare time, I like to write blog posts about sustainability, the environment, animal farming, horticulture, and plant protection. I’ve also published several science-fiction short stories.
You can find me on LinkedIn at https://www.linkedin.com/in/sreten-filipovi%C4%87-515aa5158/
