I've had some experience with Scotch heather, and it can be a beautiful addition to your garden, especially given your mild climate and acidic soil, which are ideal conditions for it. Heather thrives in well-drained, slightly acidic soil, so you're already off to a good start. Make sure it gets full sun to part shade, as it does best with plenty of light.
For planting, space them about 18 inches apart to allow for growth and good airflow. As for watering, they prefer it on the drier side once established, so be mindful of overwatering.
When it comes to pruning, the best time is right after it finishes blooming. This encourages bushier growth and more flowers the following season. Just trim back the faded flowers and a bit of the new growth.
Companion plants that work well include other acid-loving plants like blueberries or rhododendrons. They don't just complement the heather visually but thrive under similar conditions.
If you're looking for a challenge, keep an eye out for root rot, especially in poorly drained areas, and consider mulching to retain moisture without waterlogging. I hope this helps, and good luck with your gardening!
