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Christmas Cactus or Thanksgiving? How to ID Your Plant

October 20, 2020 ♛ By Melissa J. Will

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Need help identifying your plant? Find out whether your Thanksgiving, Christmas, or Easter cactus is a Schlumbergera or Rhipsalidopsis with these identification tips.

To keep these plants growing year-round indoors, use these Christmas Cactus Care Tips.


How to Identify Holiday Cactus Plants

Is this a Christmas, Thanksgiving, or Easter Cactus?

If you have a bet with a friend about the identity of a flowering holiday cactus picked up at the supermarket, you may just want to call a draw if you are arguing about whether it’s a Christmas or Thanksgiving or (less likely) Easter cactus.

Why?

Because marketers use these names for an array of different plants depending on the blooming time and where you live. And the same plant can be tagged with any of those names depending on when it is sold.

For example, the same cultivar sold as a Thanksgiving cactus in the United States may be sold as a Christmas cactus in Canada. Why? Canada celebrates Thanksgiving early in October so, by the time these plants are budding and blooming in November, that holiday is long gone and the name Christmas makes more sense to consumers.

And this is why it is best, when possible, to spare your friendship and identify plants by their botanical names instead of regional common names or marketing terms. There will still be some difficult-to-ID plants and taxonomical changes and disagreements in the scientific community, but at least with botanical names we can begin to speak the same language.

Just to make the puzzle complete, I’ve also seen holiday cactus plants tagged with the wrong botanical name, which is not surprising when mass produced for holiday shoppers.


Check the Leaves

Examples of different holiday cactus leaf shapes.

The most common tip for identifying holiday cactus is to look at the shape of the leaves. If distinct, it’s a great clue, but again there are plenty of cultivars that will confound even an experienced keen-eyed gardener. There is more on this (below).

If the leaves are not distinct, the flowers also provide clues.


Observe the Blooms

Schlumbergeras (see below) produce similar flowers (in a range of colors) with some subtle differences including pollen colors.

Rhipsalidopsis (Easter Cactus) has a distinctly different flower formation than Schlumbergeras and rarely gets caught up in the debate.

But the good news is, no matter what it is, all of these plants need the same care (see Holiday Cactus Care Guide here).

Related: How to Grow Christmas Cactus From Cuttings




1Schlumbergera truncata | Thanksgiving cactus (United States) | Christmas cactus (Canada)

Close up of Schlumbergera truncata flowers and leaf formation.
“Claw cactus” or “Crab cactus”

The quickest way to identify a Thanksgiving cactus (Schlumbergera truncata) is to check the leaves for pointy edges and note the time of year it flowers.

  • This is the most common holiday cactus sold in stores due to qualities making them more convenient to mass produce, ship, and display.
  • They are easy to spot due to the points on the leaf edges that may resemble little saw blades or pointed teeth.
  • These flowers grow horizontally, have differently-shaped upper and lower sides (zygomorphic), and yellow pollen, which you will find located on the anther (you may want to look up a diagram).

2Schlumbergera x buckleyi | Christmas cactus (United States)

Schlumbergera x buckleyi | Christmas cactus
  • Originally a hybrid between Schlumbergera russelliana and Schlumbergera truncata, your Schlumbergera x buckleyi may have all scalloped leaves, or scalloped and pointed ones.
  • These flowers are symmetrical, have pink pollen, and tend to grow downward.

3Schlumbergera bridgesii | Christmas cactus (years ago)

Years ago, this one was considered The Christmas Cactus, although the buckleyi now seems to dominate the title. You can read about the dispute/history here at Davesgarden.com.

  • This one tends to have more rounded leaves with scalloped-edges.

The Schlumbergeras can bloom twice a year, first between October and February, and then between March and May, with white, pink, orange, or red flowers.




4Rhipsalidopsis | Easter Cactus

Rhipsalidopsis | Easter Cactus
“Spring cactus”
  • Besides the later flowering time, you’ll also notice the shape of the Easter Cactus flowers is quite different from Schlumbergeras.
  • Look for flat, rectangular leaves with slightly scalloped edges, and round, upward-facing flowers.

These are sometimes also confused with Orchid Cacti, which are epiphyllum hybrids. The name and identification confusion never stops!

Easter Cactus Trivia
While long touted as a different genus, subgenus Rhipsalidopsis has recently been transferred into Schlumbergera, though this change has yet to be adopted by many Cactaceae (cactus plant family) authorities. It will be interesting to see if this change is embraced as time goes on.

More Help: This article has some illustrations and descriptions of the differences between various holiday cacti: Recognition and Culture of the Holiday Cacti.

So, unless the evidence is overwhelming, save your friendship. See if you can identify your plants by their botanical names, and agree the plant by any common name is beautiful.

~Melissa the Empress of Dirt ♛

Next

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How to Grow Air Plants (Tillandsias)
Orchids for Beginners
See More >>
Examples of various holiday cactus plants.
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(Ontario, Canada).
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