Ideal Temperatures for Houseplants

General Guidelines

Most houseplants thrive in average home temps. For best growth, lower thermostat 10°F at night—mimics nature.

• Cool‑loving plants: 60‑70°F day, lower at night. Many winter‑dormant plants prefer cool.
• Heat‑loving plants: 80s°F day, lower at night.

Critical for Flowering

Azalea and Christmas cactus need ~30°F to set buds. Tropical bloomers need high heat to flower freely.

Avoid Extremes

• No freezing or baking.
• Keep away from cold windows in winter.
• Don’t let summered plants freeze in spring/fall snaps.
• Avoid radiators and hot air blasts.