I've experimented with growing the Orange Rocket Barberry indoors, and while it's a bit unconventional, it can work if you replicate its outdoor conditions as much as possible. Here are a few tips based on my experience:
Lighting: This plant loves sunlight, so place it near a south-facing window where it can get plenty of bright, indirect light. Without adequate sunlight, the vibrant colors may dull.
Watering: The key is to keep the soil moist but not waterlogged. Check the top inch of soil and water when it feels dry. Make sure your pot has good drainage to avoid root rot.
Soil: Use a well-draining mix, perhaps a combination of potting soil and perlite. You might also mix in some sand to improve drainage further.
Humidity and Temperature: Since it's originally an outdoor plant, it can handle a range of temperatures but prefers cooler conditions in winter. It doesn't need high humidity, which is friendly for indoor environments.
Growth and Pruning: Indoors, it might not grow as large or as vibrantly as it would outside. Regular pruning will help keep it manageable and encourage bushier growth.
The thorns can be a challenge, especially if you have pets or children around, so consider the placement carefully. It’s a lovely plant, and with a little attention, it can become a unique addition to your indoor collection. You might not get the full outdoor effect, but it’s worth a try for the sake of variety and color indoors!