I’ve had some experience with the Sunshine Ligustrum, though typically it’s touted as more of an outdoor shrub. Indoors, you'll face some unique challenges, but it can certainly be done with the right conditions and care.
First, regarding light requirements: Sunshine Ligustrum thrives on sunlight. Outdoors, it's usually happiest in full sun, which translates indoors to needing a spot that gets plenty of direct light. If you don’t have a spot near a south or west-facing window, you might consider supplementing with a grow light to help maintain its vibrant color. Without enough light, the foliage might turn a less appealing green.
When it comes to watering, you’ll want to let the top inch of soil dry out between waterings. It’s crucial to avoid overwatering, as with many indoor plants, to prevent root rot. Investing in a moisture meter could help you gauge when it’s time to water, especially when you’re first learning the plant's needs in your specific environment.
Temperature and humidity will also play a role. Sunshine Ligustrum prefers a more temperate climate, so you should aim to keep it away from cold drafts or overly dry areas like next to heaters. Some indoor plants benefit from a pebble tray or a humidifier nearby, particularly in dry winter months.
A challenge with growing it indoors might be pruning. This shrub can grow quite large and bushy, so regular trimming will likely be necessary to keep it manageable in size and to retain that dense, attractive shape. This can be done during the growing season, and don't be shy about pruning, as it tends to handle it quite well.
You might want to look into companion plants like the pothos or rubber plant for a similar aesthetic beyond yellow foliage if you're exploring more indoor options.
I've found that success with this plant indoors also depends on being patient and willing to experiment with its positioning and care routine. Maybe you’ve already tried something like light meters or different potting mixes? I'd love to hear what strategies others have found successful, or if there are notable differences in your environment!