Easy Fixes for Calla Lilies That Won’t Bloom

02.03.2024 - 18:25 / gardenerspath.com / Lorna Kring

Easy Fixes for Calla Lilies That Won’t Bloom

Wonderfully decorative, calla lilies (Zantedeschia spp.) produce elegant, chalice-like flowers in a range of attractive, bright colors.

And if they’re not flowering, we have the easy fixes to restore callas to their blooming glory!

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Generally easy to grow and care for, which you can read about in our calla lily grow guide, getting Zantedeschia varieties to set bud and flower isn’t difficult.

For plants that are underperforming, the problems usually come down to a few basic issues like bulb depth, watering, and hours of sunlight. 

Whether you grow your plants in beds or containers, a few simple adjustments are typically all that’s required to reset bud development for a dazzling floral display!

So when you’re ready to do some tweaking, we’ve got the easy fixes for calla lilies that won’t bloom.

Here’s a quick peek at what you’ll find ahead:

One of the most common reasons for non-blooming calla lilies stems from bulbs that are planted too deep.

A general rule of thumb for bulb planting is to set them in the soil at a depth that’s twice the bulb’s height.

AsZantedeschia bulbs mature, they typically grow more in girth than height, forming beefy clusters several inches wide but usually not more than a couple of inches tall.

For planting purposes, this equals a depth of two to four inches.

If your bulbs have been planted too deep or have settled to a depth greater than four inches, they may still produce plenty of foliage but can struggle to set flower buds.

When planting as a late summer annual, ensure the bulbs are set at a depth that’s only twice their