Self Pruning Palm Trees

Self pruning palm trees are those that do their own housekeeping!

I wish I could have one that would do MY housekeeping! 😉 But seriously, what does a self pruning palm tree do?

They detach dead fronds when the time is right. For those who love growing their own palms, they save you from the maintenance work of doing it yourself.

Palm frond automatically falling from a palm in a backyard

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Which Types of Palm Trees are Self Pruning?

What is an easy way to tell if a palm is self pruning? Any palm plant that has a Crownshaft is a self-pruning palm tree.

A number of palm Genera have crownshafts. Watch for a palm Genus's overall style. If it's described as having a crownshaft, then all species in that Genus will have one. You can then investigate which species you'd like to have.

However, one thing is that's not the only evaluation to consider when you make a purchase.

It's essential to review climate needs. To know if it's A Palm That Can Grow There, where you live.
Yes, crownshaft palms don't need pruning!

But also remember to figure out any other care your chosen species will need. Will you want to attend to those needs? Or maybe not!

Detailing a palm tree with the part that's a crownshaft above the trunk section.

Comparing Crownshaft to Trunk
On a Royal Palm
Photo: S.Ksiddhartthan - CC BY-SA 4.0 & edited by Site.

Where is a Crownshaft on the Trunk?

Look to the top part of the palm's trunk to find the crownshaft.

It will look distinct from the lower trunk. It's often a waxy, vivid green, but sometimes is another stunning color.

Royal palm with description of location of the crownshaft

Pointing Out the Crownshaft on a Royal Palm
Photo: Shoka - CC BY-SA 4.0 & edited by Site.

Lustrous Colors Possible on Crownshafts

An assortment of crownshafts have red, purple, white, orange or brown coloring.

Which then noticeably contrasts with surrounding fronds, and of course, the trunk. Making for a dazzling appearance.

Lipstick Palms with colorful crownshaft in Singapore Botanic Garden

Lipstick Palms Amidst Lush Tropical Plantings at Singapore Botanic Gardens
Photo: Jnz ls Photos * CC BY 4.0

What Exactly is the Palm Crownshaft?

Palm fronds attach to the trunk with a leaf base at the end of the petiole.

Also called a sheath. They're made of sturdy fibers. It helps palm leaves bear stresses, like windy conditions. It's the main anchor system for the frond.

On these palms with crownshafts, this base encircles the trunk. Like a belt circling the trunk. Many fronds help to form the crownshaft. So one after another contributes to its leaf base, giving these sheaths height. They wrap around the trunk securely.

Clinostigma harlandii palm with Crownshaft

Crownshaft Created From Lengthy Sheaths of Discarded Palms
On This Clinostigma harlandii
Photo: Scott Zona - CC BY 4.0

How Crownshafts Cause Palms to Prune Themselves

As a palm ages, fronds will die.

The oldest leaf dies, normally at the bottom of the crown. And at the top part of the crownshaft. Then its crownshaft sheath (which had formed around the top of the trunk) weakens.

Since it can't anchor so well anymore, it begins to split. Until eventually the sheath loses its grip on the frond. The dead frond then falls off the palm.

Cyrtostachys_renda-InKeralaIndia-Yercaud-elango_CCby-SA4.0.jpg

The Lipstick Palm Has Reddish Rachis & Sheaths
Which Makes a Reddish Crownshaft
Photo: Yercaud elango - CC BY-SA 4.0

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Compare These Self Pruning Palm Trees

Areca Palm

Dypsis lutescens is also called Butterfly Palm, Yellow Bamboo Palm & Golden Cane Palm.

Leaflets have dark green upper surfaces & are silvery below. They attach to the yellowish rachis.

Overall height can get to 40'/12m tall.

The crownshaft gets about 3'/60cm high. Its lower part bulges a bit.
Grayish to silvery coloring may have a slight green tinge.
A clustering palm. So each stem has its own crownshaft.

Dypsis_lutescens-NationalChungHsingUni-PingAnChang_CCby-SA4.0.jpg

This Butterfly Palm's Crownshaft Has a Pinkish Tint
Species Coloring Depends on Exposure to Light
Photo: Ping An Chang - CC BY-SA 4.0

Barbel Palm

Acanthophoenix rubra is also known as Red Palm. A shorter solitary, getting to 40'/12m.

Crownshaft is deep reddish brown. About 3'/90cm in length.
It's a colorful, a smaller reminiscent of the Coconut palm. Best in Zones 10b-11.

Acanthophoenix_rubra-RedPalm-BNavez_CCby-SA3.0.jpg

Red Palms are seriously endangered.
Photo: B Navez - CC BY-SA 4.0

Bottle Palm

Hyophorbe lagenicaulis is a stunner. Named for its round bottle-like lower trunk. It gets about 40'/12m tall.

Crownshaft rises above the unique trunk. For about 3'/90cm. Mint green in color.
Native to Mascarene Islands, it's suited for Zones 10b-11. Warmest of 10a can try.
Dark green leaflets rigidly grow upward from the rachis.

Bottle Palm with its unusual yet stunning trunk and crownshaft.

Bottle Palm in Tropical Gardens of Maui
Photo: Forest & Kim Starr - CC BY 4.0

Christmas Palm

Adonidia merrillii has an attractive crown. Its full height can get to 30'/9m. Good form Zones 10-11, but use caution in 10a.

Its 1-3'/30-90cm high Crownshaft varies in green coloring.
Around December, produces oval, large red fruits, contrasting against the greens. Giving it that common name. Even so, don't let it get frosty!
Also often used as a Potted Indoor Palm.

Adonidia_merrillii_Vinales_Cuba-MichelChauvet_CCby-SA4.0.jpg

Also called Manila Palm.
Photo: Michel Chauvet - CC BY-SA 4.0

Foxtail Palm

Wodyetia bifurcata is a faster growing palm. Gets about 60'/18m tall.

Green crownshaft sometimes has a bluish tinge. 3'/90cm in height. It bulges a little at the bottom.
Tightly packed leaflets are light to dark green. The feathery fronds are reminiscent of a fox tail, hence its common name.
Contrasting, the Foxtail Palm has small fruits, vivid red or orange when ripe.

Wodyetia_bifurcata-Tropical_Gardens_of_Maui-ForestKimStarr_CCby3.0-US.jpg

Looking Gorgeous in Maui's Tropical Gardens
Photo: Forest & Kim Starr - CC BY 4.0

Lipstick Palm

Cyrtostachys renda's other common name is the Sealing Wax Palm. It's a clumper suitable to Zone 11, some 10b.

Its crownshaft is bright red, about the same thickness as the trunk below. A striking feature.
For further knockout looks, two areas provide the ultimate contrast.

White flowers contrast with emerald green leaflets.
Petiole is also brilliant orange/red.

Cyrtostachys_renda-prashanthns_CCby-SA3.0.jpg

See the striking crownshaft, in brilliant red.
Photo: prashanthns - CC BY-SA 4.0

Orange Collar Palm

Areca vestiaria does well in Zones 10-11. Usually a clustering palm. But sometimes grows solitary you may see it called Arica aliciae.

Some forms grow newest fronds with maroon coloring look even redder.
Attractive trunks have widely spaced rings white or orange rings. The upper trunk is green. Lower trunk areas are grayish/tan.
Stilt roots grow from trunk bases.

Colorful crownshaft is deep orange.
Photo: Pescov - CC BY-SA 4.0

Royal Palm

Roystonea regia grows tall, to 100'/30m. Native to southernmost Florida, coastal Mexico, Belize & Honduras. Plus Cuba & the Bahamas.

For Zones 10-11, some 9b.
Crownshaft tapers at the top. Dark green, about 6'/1.8m tall.
The trunk is smooth, whitish, some have a gray tinge. The base starts out wide, tapering with height.

Roystonea_regia_var_maisiana-DavidJStang_CCby-SA4.0.jpg

Has widely spaced tan rings on lower trunk.
Photo: David J Stang - CC BY-SA 4.0

Spindle Palm

Hyophorbe verschaffeltii's common name refers to the spindle shaped trunk.

Bluish green crownshaft swells at its lowest part.
Inflorescences appear at the trunk's top, just below the start of the crownshaft.
Up to 40'/12m tall, in Zones 10-11.

SpindlePalm-Hyophorbe_verschaffeltii-Mauritus-SMoltenoCC0.jpg

Lined Up Spindle Palms

Takeaways for Self Pruning Palm Trees

Crownshaft palms may improve palm tree maintenance.

That's because they shed old, dead palms on their own. Many crownshaft species natively grew in tropical rain forest conditions. That's a hint of their climate needs.

Did this give you a good understanding of self pruning palm trees? And the way that they Do That via Their Crownshafts.

You can always Give Us Feedback if you still have questions.

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