Cactus Flower Fun in Southwest Spring

Almost every cactus species is blooming in our Southwest spring and oh, what fantastic flowers cacti produce! Every color of the rainbow can be found, often in bold and vivid hues.

Cactus Flowers are Colorful

This is a wonderful time of year if you are a flower lover. Cactus flowers come in red, orange, yellow, green, blue, and violet. These are joined by scarlet, pink, rose, crimson, claret, burgundy, magenta, purple, lavender, cream and white. In some species, individual blossoms are rainbows in themselves!

Prickly pear – an individual with very colorful flowers.

Prickly pear flowers are generally yellow, but different species may have orange, red, apricot or other colors. Plus the orange ones fade in the sun to a pretty peach color. Grow your own cactus rainbow by getting a pad or two of those with unique color for your yard. See the end of this article for how to propagate cacti.

Cactus Pollinators

Long before European honey bees were brought to these shores, a plethora of different species of native solitary bees buzzed the desert skies, searching for the nectar and pollen necessary for their young. One specialist is the cactus bee (Diadasia rinconis – yes named after Southern Arizona’s Rincon mountains). The cactus bee nests in undisturbed soils, one of the group called “chimney bees” due to the form of their nest.

Cactus bees pollinating a prickly pear. Longer antenna and different color than the European honey bee.

Birds do their share of pollinating. Humming birds and the tiny green-yellow verdins visit prickly pear, cholla, and barrel cactus in my yard. Bird books state that verdins are insectivorous and claim verdins are simply searching for insects in the cactus flowers. Bird specialists should check their assumptions. Verdins regularly visit my hummingbird feeders – they have as much of a sweet tooth as the rest of us.

Argentine giant cactus grows low to the ground and comes in many colors. Hummingbirds will swoop down to pollinate these.

Many people do not appreciate cholla but wait until our Southwest Spring! Buckhorn and staghorn cholla have flower colors not found in any other plants! Florescent-reddish-magenta-purple is as I can come to describe the color. Later, watch our State Bird, the cactus wren, use the cholla cactus as the perfect snake and cat-proof nesting site.

Propagating Cacti

Rule one for cacti. Dry well before planting – otherwise they rot! Cacti need to heal their open cut and form a “callus” before they are planted. Set them upright – out of direct sunlight – to callus for about one week before you plant them.

Also called “peanut cactus” you can easily grow these from callused cuttings.

Once a callus is formed, put your cutting in a well-drained rooting media like perlite, vermiculite, or clean sand. Peat moss and coir retain too much moisture and can lead to rot. Or you can plant the cutting where you want the plant to grow. Place it with the callus just touching the soil and hold it upright with a mound of rocks.

Even white cactus flowers can be stunning. And dragon fruit flowers develop into tasty fruits!

Remember, it is illegal to collect any wild cactus without a permit.

More Cactus Flower Fun

Want more cactus flowers?  Be sure to follow Gardening With Soule on Instagram as I post 30 days of Cactus Flower Fun!



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More about cacti in this book by friend Matt Johnson.  This link is to Amazon and if you buy the book there the Horticulture Therapy non-profit Tierra del Sol Institute will get a few pennies – at no extra cost to you.

© Article copyright Jacqueline A. Soule. All rights reserved. You must ask permission to republish an entire blog post or article. Okay to use a short excerpt – but you must give proper credit to Gardening With Soule. You must include a link to the original post on our site. No stealing photos.

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If you have any cactus questions – please put them under the comments section – way at the bottom of this page.

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