Calathea burle-marxii (Ice Blue Calathea)

Calathea burle-marxii (Ice Blue Calathea) white flower with a distinct conical shape among foliage.

Botanical name: Calathea burle-marxii

Common name: Ice Blue Calathea

Family: Marantaceae

Origin: Brazil

USDA Zone: 10-11

Cold tolerance: 35°F

Plant form: Small

Mature height: 2-5 ft

Sun exposure: Semi-shade; shade

Cold tolerance: Frost sensitive. Protect from freezing.

Watering: Regular

Flower color: White and off-white; blue, lavender, purple

Suitable for: Outdoors in the suitable USDA zone; small gardens, containers, and indoor growing

Foliage color: Ornamental foliage

Calathea burle-marxii (Ice Blue Calathea) is an attractive small shrub, native to Brazil, that can reach up to 2-5 feet in height. It boasts an array of ornamental foliage in silver and blue hues, as well as white, off-white, blue, lavender and purple flowers.

This plant requires regular watering and should never be allowed to dry out between waterings. It performs best in shade or semi-shade, and will appreciate some kind of humidity system if kept in dry indoor conditions. Fertilize regularly with a water-soluble fertilizer to keep your Calathea looking its best.

In USDA zones below 10, grow as a houseplant or seasonal container specimen. If you do need to overwinter your Calathea, make sure the pot it is in has good drainage and that you place it in a warm, lightly shaded area. Make sure not to overwater it during this time, as this could lead to root rot. Move the plant back outside during spring and summer.