Lily, Calla


1. Light/Sun Exposure - Full sun to partial shade.

2. USDA Hardiness Zones - Garden hardy in-ground zones 9 to 11.  Must be dug and stored in zones cooler than 9 (3 to 8).

3. Planting Distance - 12 to 15 inches apart in ground.

4. Mature Height/Spread - 18 to 24 inches tall.

5. Bloom Time - Summer to fall.

6. Planting Instructions - Dig a hole twice as deep and twice as wide as each dormant bulb. When dug, the hole should be big enough to allow the dormant bulb to be covered with 1 inch of soil.  Place bulb in hole and cover with soil, firming the soil with your fingers. Water thoroughly.


Beautiful Calla Lilies have a grace and elegance unmatched by any other flower. Spectacular Calla Lilies will set your garden ablaze with a dazzling palette of vibrant colors. Calla Lilies are a delight when planted near water or as an eye-stopping decoration along walls or fences. They can be used to create charming borders or garden beds, and they can also be grown in containers to decorate porches, patios and decks.


Although these plants will perform well in average garden soils of all types, we recommend having your soil tested periodically by the local County Extension Office.  These tests can determine if the soil needs any amendments to enhance your plants' growth and performance.  See below for our recommended practice to improve your soil without any additional testing:

1.  Spade or till the soil to a depth of 12-18 inches.

2.  To provide nutrients and improve drainage, add organic matter to your soil by mixing in a 2 to 4-inch layer of dehydrated manure, garden compost, shredded leaves, and/or peat moss.

3.  After active growth begins, periodically feed with Cottage Farms' water soluble Carefree Bud-N-Flower Booster. Plants in containers need more frequent watering and feeding, especially when in active growth and bloom.


Water - Your plants require 1" of rainfall (or equivalent watering) each week when planted in the ground.  Do not allow plants in containers to dry out.  In a container that is exposed to full sun, water it well at least once every other day, and possibly every day, during periods of intense summer heat.  You may wish to temporarily move containerized plants to an area where they are shielded from the hot summer sun (i.e., in the shade of a tree, on a porch near an overhang).

Mulching - Apply a 2-4 inch layer of shredded bark, compost or other organic mulch around your plants to promote moisture retention, maintain even soil temperatures, and to discourage weed growth.

Weeding - Keep the area around your plants free of weeds. Weeds compete with all plants for food, water and light. Walk around the garden periodically and pull weeds, including the roots, as soon as you see them.

Grooming - Deadhead or remove flowers when blooms have faded, leaving as much foliage as possible.  You don’t want the flower heads to go to seed.  Seed formation drains off the food needed to produce next year’s growth, which is essential for further bulb development.  Leaves should be allowed to die back naturally before removing.  The green leaves are the last things to wither and dry up but they do provide the nourishment for your bulb growth. As long as the foliage remains green it will gather sunlight and transmit energy into the root system for the following growing season. DO NOT remove the foliage while it is still green.   

Feeding - Feed your plants once every 2-3 weeks during the growing season with a water-soluble fertilizer such as Cottage Farms' Carefree Bud-N-Flower Booster.  Discontinue feeding after September 1st so your plants can harden off for winter dormancy. Resume fertilizing when new growth appears in the spring.

Winterizing - In ground plantings will go dormant in the ground only in zones 9 through 11.

In zones cooler than 9 (3-8) where winter temperatures may damage tender Calla Lily bulbs, lift the bulbs with foliage still attached each fall before frost. When leaves have yellowed and dried, remove them from the bulbs.  If lifted and stored, place the bulbs in dry peat moss, perlite or vermiculite in a location where the temperature stays around 40-50 degrees F.  Replant the Calla Lily bulbs each spring after the danger of frost has passed.

Containerized plantings can be moved indoors to a cool spot (i.e., unheated garage, shed) in winter where the plants will go dormant in the container.  Water them lightly every 15-20 days. 

If you keep the bulbs dormant in pots, simply move the pots outdoors or replant your container outdoors as soon as all danger of frost is over for your planting zone.


CAUTION: Not all plant material is edible. Though most plants are harmless, some contain toxic substances which can cause headaches, nausea, dizziness, or other discomforts. As a general rule, only known food products should be eaten. In case of ingestion, please contact your local poison control center at once and advise them of the plant ingested. Keep out of reach of children.