How hot is too hot for potted plants?
So, how hot IS too hot for plants? The general answer is around 90 degrees F, with some exceptions to the rule. The general answer is around 90 degrees F, with some exceptions to the rule. This means that when temps rise above 90 and remain there for a lengthy spell: Leaves wilt. Water evaporates into the atmosphere more quickly in high heat, draining a plant’s reserves.Most plants grow best in temperatures ranging from 59°–86°F. When temperatures above 90°F are sustained for long periods, plant growth is slowed, and some plants begin to show signs of stress.
What plants are good for outside all year round?
Evergreen flowering perennials will keep their green foliage all year, long after the blooming season is over. Many herbs are particularly known for being great practical flowering plants with evergreen foliage, such as Lavender, Rosemary, and Salvia, among others. Low-maintenance evergreen plants that would look good in long planters include yucca, coral bells, and bay laurel. Japanese Pieris, Nandina, Lavender, and Rosemary are also excellent choices for long planters due to their attractive foliage and growth habit.