Planting. Coreopsis tend to thrive in well-draining, loamy soil. When planting them in the ground or into a garden bed, ensure they won't be at risk of becoming waterlogged - Coreopsis like to dry out between watering. Depending on the variety of Coreopsis, you'll also want to plant them around 30cm apart to allow for spreading. If you're planting your Coreopsis into a pot or container, you'll want to get a good quality potting mix with enough porosity to prevent it from holding too much water. You can always add drainage to your potting mix by mixing in something like coarse sand, perlite, or bark!

Environment. Coreopsis need plenty of direct sunlight in order to thrive. Ensuring they have access to direct sun for at least half of the day will help them to stay vibrant and healthy. They don't typically mind high temperatures or humidity so long as they have proper drainage and adequate air circulation. The only environmental factor that may impact them drastically is the cold - so you will need to keep your Coreopsis protected from frost to keep it looking its best.

Watering. The most important thing to keep in mind when watering your Coreopsis is whether it has enough drainage or not. These plants will wilt and rot if left waterlogged, so having enough drainage to ensure they dry out between watering is imperative. Typically, a good soak once or twice a week should be fine for a mature plant. If the weather is on the hotter side or you've only just planted your Coreopsis, you may need to water it more often.