Pink Calla Lily Plant Care: Grow Zantedeschia rehmannii Indoors



Pink Calla Lily has become favorite houseplant, and it’s easy to see why! 

This South Africa native has charming, funnel-shaped flowers that make elegant accents for your home. Here, you’ll discover how to grow Zantedeschia rehmannii from rhizomes, what kind of care they need to thrive, plus how get them to re-bloom indoors. It’s all easier than you think… I’ll tell you how step by step.


Get to Know Pink Calla Lily

Its charming, funnel-shaped blooms are actually spathes that curl around the yellow spadix, and may be pink, rose, lavender or violet.

These compact hybrids are smaller (growing up to 12-16 in (30-40 cm) tall) than the white or yellow varieties … and I think much more attractive. Those long, tapered leaves are deep green, often with faint white spots.

They fall under the category of “tender bulbs” because they can’t tolerate freezing temperatures. But that makes callas easy to please indoors.

The secret to keeping its blossoms fresh for several weeks is to keep the plant warm and well-watered. Take good care of them and you’ll enjoy those pretty pink blooms year after year.

You’ll find these petite pink callas for sale in nurseries and online flower delivery sites in late winter, spring and summer. You can now buy lilies in florist’s shops around the holidays, too.

pink calla lily, Zantedeschia rehmannii

How to Grow Calla Lilies from Rhizomes

Soooo…you’ve purchased your Zantedeschia rhizomes and they’re still in the bag. Wondering what to do next? Relax. They’re easy to grow. Just keep them warm and moist and you should see those colorful calla blooms in about 8 weeks.

Here are the steps to take next:

  1. Pot the rhizomes in a 6- or 8-inch pot, covering with 1 inch (2.5 cm) of soil.
  2. Water thoroughly and empty drainage tray.
  3. Set your potted bulbs in a warm, sunny window. These colorful callas won’t bloom unless the temperature is 70°F/21°C or higher, even at night.
  4. Keep the soil lightly moist until you see the first bit of green leaves poking through the surface. Gradually increase water as the plant grows and blooms. (Flowering plants are thirsty, so don’t be stingy with the H2O.)
  5. Fertilize only while plant is growing and flowering.

Wondering what to do after the flowers are spent? Read on

How to Get Pink Calla Lily to Re-Bloom

This beautiful plant will bloom for 4-6 weeks, then can be brought back to bloom the next year. Here are the steps:

Give ’em a rest

Flowers are triggered by a cool, dry dormancy for at least 2 months. With this rest, you can force your callas to rebloom for 3-5 seasons. When rhizomes stop producing a good show of flowers, it’s time to replace them.

  1. When flowers die, allow the plant to go dormant by gradually reducing the water.
  2. Wait till the foliage turns yellow and withered, then cut it back. Leave the rhizomes in the pot and store them in a cool (40-60°F/4-16°C), dark place giving it just enough water to prevent the rhizomes from drying out completely.
  3. Dormant rhizomes can be restarted in January to March. Pot them in 6 in (10 cm) pots with fresh soil. Top with about 1 inch of soil to cover the rhizome. Put the plant back in a warm, bright spot (out of direct sun) and keep the soil moist. Blooms should appear in about 8 weeks.

CAUTION: All parts of calla lilies are poisonous; the rhizome is the most toxic. Keep it out of the reach of children, cats and dogs who may play with or ingest this plant.

pink calla lilies, Zantedeschia rehmannii, pink flowers

Pink Calla Lily Care Tips

Light: Bright indirect light

Water: After potting pink calla lily rhizomes, keep the potting mix lightly moist. Increase water when plant is growing and blooming.

Humidity: Average room (around 40% relative humidity). Indoor air can become extremely dry, especially when windows are closed up and the furnace is running. It’s a good idea to use a humidity gauge, rather than guess. The easiest way to boost indoor humidity is to use a cool-mist room humidifier. It is low-cost and your tropical plants will love it.

Temperature: Warm (70-85°F/21-29°C) while growing and flowering. Keep plants away from heat/AC vents.

Soil: Peat moss based potting mix with added perlite for faster drainage. African violet potting mix is ideal.

Fertilizer: Feed every 2 weeks with a high-phosphorus liquid fertilizer diluted by half while plant is growing.

Propagation: Rhizomes. See how-tos above for planting rhizomes.

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