Do Crotons Survive Through a Frost?

After Frost

• During the warm months, a houseplant croton can be a nice addition to an outdoor patio or other garden area by simply moving the plant in its container outdoors. For best results, move plants back indoors in early autumn once frost is a threat. If your plant does experience a frost, move it indoors to a sunny location and do not water until the soil is completely dry. Leaves may turn brown and shrivel up, but a croton is a tough plant and, unless it is frozen solid, it should continue to grow. Continue with its regular fertilizer routine once new growth emerges on the plant.

Crotons in the Cooler Garden

• Crotons can be considered an annual in cooler growing zones and will add interesting texture and color to any garden design. Plant in full sun in spring once chance of frost has passed and fertilize regularly. Mix crotons with bright zinnias, marigolds or other bright, prolific bloomers for a gorgeous display. Like other annuals, your crotons will die off with frost and require replacement with new plants in spring, unless you dig them up and move them indoors before the cold temperatures arrive.

Crotons in Warm Gardens

• The subtropic or tropic growing zones of 9 and above mimic the natural environment of the croton, making them ideal areas for the bright-colored plant to be grown as intended. Crotons can be trimmed into small trees or left to grow as a shrub. Native soils with a high mixture of peat and sand like those found in the extreme southern United States and tropical areas of the world provide the ideal conditions for these gorgeous plants. Little care is needed except for occasional fertilizing. Since temperatures and humidity levels are ideal, crotons should grow for years in these conditions.

Understanding Frost Dates

• To give you the best understanding of when frost is mostly likely going to occur in your area, consult your local cooperative extension office or the USDA Hardiness Zone map and keep up with your local weather in the beginning of spring and fall to know when frost may be expected. Knowing when cold spells can occur is the best defense against frost.