Lantana is a difficult plant to grow. It likes very hot weather and has a shallow root system. It can be grown successfully in most soils as long as they are well-drained and have been amended with a good amount of organic matter (like compost).
You will also need to provide water. If you're in a place where it doesn't get much sun, you may want to try growing it in a greenhouse or in a sunny spot in your home.
To fertilize your lantana, you need to mix a half-strength fertilizer with water and apply it as a light sprinkling. The amount of fertilizer that you use depends on the type of soil in which you are growing your plants.
If you have a sandy soil, you can use half a teaspoon per plant. If you have a clay soil, you can use one tablespoon. To apply the fertilizer, take a bucket or watering can and place it under your plant.
Fill the bucket with water and pour in the fertilizer. Once you’ve planted your seedlings, let them dry out for about 10 minutes before watering again. Be careful not to water them too much!