Houseplant Care Series: All About Light & Sun

 

All plants need light, but the amount and intensity of light each plant needs can vary dramatically. Many popular houseplants originated beneath tropical forest canopies, where they adapted to growing in bright but filtered light rather than direct sunlight.

Put a light-sensitive houseplant in intense direct sun and you may end up with scorched or damaged leaves. On the other hand, a plant that needs brighter conditions can become weak and stretched if it doesn’t receive enough light.

 

Understanding Light from Your Windows

 

The direction your windows face can give you a general idea of the type of light available, but every home is different. Trees, roof overhangs, curtains, neighboring buildings, and even the time of year can change how much light actually reaches your plants.

East-facing windows typically receive gentler morning sunlight, while west-facing windows can receive stronger afternoon sun. South-facing windows generally provide the brightest light throughout the day, while north-facing windows usually offer the least direct sunlight.

Remember, though: “low light” does not mean “no light.” Even plants marketed as low-light houseplants still need enough light to photosynthesize and grow.

 
 

Signs Your Plant May Be Getting Too LITTLE Light

 

• The plant begins noticeably leaning or stretching toward its light source.

• Lower or interior leaves begin yellowing or dropping.

• New growth is smaller, weaker, or less colorful than previous growth.

• Stems become long, thin, or unusually stretched with larger spaces between leaves.

• Variegated plants may begin producing greener leaves with less variegation.

• Flowering plants may produce fewer blooms or stop blooming altogether.

 
 

Signs Your Plant May Be Getting Too MUCH Light

 

• Leaves develop pale, bleached, tan, or crispy brown patches where they receive the strongest light.

• Leaf edges may become dry or scorched.

• Foliage may appear faded or washed out.

• The plant may wilt or dry out unusually quickly in a hot, sunny location.

• In severe cases, large portions of exposed leaves can become scorched.

 
 

Let Your Plant Tell You What It Needs

 

Light recommendations are a great starting point, but your plant’s growth can tell you a lot about whether you’ve found the right spot. Watch for changes in leaf color, growth patterns, and overall appearance, and adjust its location when necessary.

If you’re moving a houseplant into significantly brighter light, make the transition gradually whenever possible. A plant accustomed to lower light can develop sunburn if it’s suddenly placed in strong direct sunlight—even if that particular plant can normally tolerate brighter conditions.