Some azaleas are old enough to collect Social Security. These “royal” shrubs can live 50 years or more. Several plants in historic Japanese temples are centuries old. Azaleas belong to the Rhododendron genus and are native to Asia, North America, and...
Remember Earth Day? Yes, it’s still a thing. Rising public concern over pollution, smog, and environmental degradation fueled the first Earth Day in 1970. Sustainable gardening may seem like an Earth Day sequel, but many traditional cultures have practiced it...
Humans and hollyhocks go way back. Archaeologists have discovered hollyhock pollen in Neanderthal burial sites in Iraq, suggesting it had spiritual or medicinal importance as early as 50,000 years ago. Sumerian clay tablets mention plants with large, showy blooms,...
Balcony gardening dates back to Ancient Rome, where affluent citizens adorned their villas with hanging and potted plants on upper floors. The trend re-emerged during the Industrial Revolution as cities grew more congested, prompting residents to reclaim small outdoor...
People perspire. Plants transpire. Transpiration is a plant’s cooling process, where it releases water vapor from stomata in its leaves. This natural evaporative cooling moderates plant temperatures and urban heat island effects, especially in densely built...
