Smooth hydrangeas, also known as Hydrangea arborescens, have specific light requirements to thrive in your garden. While they can tolerate full sun, it is important to note that they will require some special care and attention in these conditions. In general, smooth hydrangeas prefer partial shade or dappled sunlight for optimal growth and health.
If you decide to plant smooth hydrangeas in full sun, it is crucial to ensure that the soil remains consistently moist. These plants have shallow root systems, and the heat from direct sunlight can quickly dry out the soil, causing stress and potentially damaging the foliage. Regular watering, especially during hot and dry periods, will be necessary to maintain the moisture levels in the soil.
In hotter climates, it is advisable to provide some protection for smooth hydrangeas from the intense afternoon sun. This can be achieved by planting them in areas that receive partial shade or by creating some sort of shade cover, such as using shade cloth or strategically placing them under larger trees or shrubs. By providing this protection, you can prevent excessive stress on the plants and minimize the risk of foliage burn.
It is worth noting that smooth hydrangeas can adapt to different light conditions to some extent. In my personal experience, I have successfully grown smooth hydrangeas in both full sun and partial shade. However, I found that those planted in partial shade or areas with dappled sunlight tended to have healthier, lusher foliage and produced more abundant blooms.
To summarize, smooth hydrangeas can tolerate full sun if you ensure the soil is consistently moist. However, it is generally advisable to provide some protection from the intense afternoon sun, especially in hotter climates, to prevent stress and foliage burn. Ideal light conditions for smooth hydrangeas are partial shade or dappled sunlight, as this will promote their overall health and vigor.
