Spiderwort, a member of the Tradescantia genus, encompasses about 75 species, including both houseplants and perennial wildflowers. These plants are appreciated for their vibrant foliage and are popular choices for gardeners and indoor plant enthusiasts alike.
Spiderwort’s Light Preferences
Spiderwort plants generally thrive in bright, indirect light or partial shade. While adaptable, they can tolerate some direct sun, particularly morning sun; harsh afternoon full sun can scorch the leaves. Partial shade typically means the plant receives three to six hours of direct sunlight per day, often in the morning. Bright, indirect light simulates the filtered conditions spiderworts experience in their natural habitats, such as under a forest canopy. Some specific varieties, like Tradescantia pallida (Purple Heart), can tolerate full sun to maintain their deep purple coloration, though most varieties prefer protection from intense midday rays.
Signs of Improper Light Exposure
A spiderwort’s foliage indicates its light needs. If a spiderwort receives too much direct sunlight, its leaves may show signs of stress, such as bleaching or a washed-out appearance. The edges of the leaves might turn yellow or brown and become crispy, indicating sunburn. Additionally, the vibrant colors of variegated varieties can fade, or the leaves may develop white spots.
Conversely, insufficient light can also lead to noticeable issues. When a spiderwort is not getting enough light, it may exhibit leggy growth, characterized by long, stretched stems with sparse leaves. Leaves may also become smaller than average, and any variegation can diminish or revert to a plain green color.
Ensuring Ideal Light for Spiderwort
Providing the right light conditions for spiderwort involves strategic placement, whether indoors or outdoors. For indoor plants, an east or north-facing window is often ideal, offering gentle morning sun or consistent indirect light throughout the day. If a south or west-facing window is the only option, positioning the plant a few feet back or using sheer curtains can diffuse the intense light and prevent leaf scorch. Rotating the plant periodically helps ensure even growth and light exposure.
When growing spiderwort outdoors, select a location that provides partial shade. Planting under taller trees or on the east side of a house can offer protection from harsh afternoon sun. Observe the plant’s response to its environment and make gradual adjustments to its location as needed, allowing time for the plant to adapt to changes in light intensity.