Height: 3-4 ft (.9-1.2 m) tall indoors; dwarf varieties are less than 2 ft (.6 m) tall
Light: Bright light to direct sun. Your Heliconia psittacorum will bloom most of the year when it gets plenty of light. You can move it to your porch or patio in summer to give it the sunlight it needs. Remember, it may be thirstier if it’s kept outdoors.
Water: Keep soil evenly moist spring through fall. Keep soil slightly drier in winter, when growth has slowed — but don’t allow it to dry out. Heliconia doesn’t like soggy potting medium, either. Young plants, especially, are prone to root rot if kept too wet. I highly recommend using a moisture meter rather than guess how much water is in the planter. Older Heliconias are more drought-tolerant.
Humidity: This South American native likes humid air. Aim to maintain 50-60% relative humidity around the plant. Indoor air can get extremely dry in winter
Temperature: Average to warm (65-80°F/18-27°C) year-round. Don’t expose Heliconia psittacorum to temps below 55°F/13°C. It’s tropical, not hardy.
Soil: Peat moss-based potting mix with added perlite and/or vermiculite to improve drainage. African violet potting mix is ideal.
Fertilizer: Feed monthly during the growing season (spring through fall) with a balanced water-soluble fertilizer. Do not feed in winter when growth is slower.