Rocky Knoll Farm Caryopteris

Since the 'Dark Knight' reaches a mature size of 3 feet by 3 feet, you should space them at least 3 feet apart if you are planting them in a row or mass planting. This allows for proper airflow and ensures the shrub has enough room to reach its full, rounded shape.

Yes, the foliage of the Caryopteris 'Dark Knight' is generally considered deer resistant. While no plant is completely deer-proof, the scent and texture of these leaves are typically unappealing to them, making it a safer choice for gardens where deer are a common nuisance.

You should prune this plant once a year, ideally in early spring just as new growth begins to appear. Cutting it back encourages a bushier, more compact habit and ensures you get the most vibrant display of purple-blue flowers during the summer.

Absolutely. Because of its compact 3-foot size, it is well-suited for container gardening. Just ensure your pot has excellent drainage holes and is placed in a spot that receives full sun throughout the day.

The 'Dark Knight' is hardy down to -20°F, which covers USDA zones 5 through 9. If you live in the colder end of that range, it is helpful to plant it in a location protected from harsh winter windchill to ensure it returns reliably in the spring.

While it needs regular watering during its first season to establish a healthy root system, this shrub is quite drought-tolerant once established. After the first year, you will only need to water it during extended dry spells.