I've had great luck with growing buttercups in my garden, and I think the key is to find the right balance with watering - they need regular moisture, but too much can be detrimental. I plant mine in a spot that gets full sun for most of the day, but also gets some partial shade to prevent scorching. The well-drained soil is also crucial, as this helps prevent root rot and other issues. If you can get these conditions right, you should be able to enjoy a beautiful display of bright, cheerful blooms in the spring, which is always a lovely sight after a long winter.