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Harlequins Gardens

Harlequins Gardens

Boulder's specialist in well-adapted plants

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Home | Yucca extract

Yucca extract

YUCCA EXTRACT: Ordinary magic for drought stress and water and nutrient absorption

September 8, 2026

Sledge Hammer

Yucca glauca is our local native yucca. The common name is Soapweed, because native Americans used the roots to make soap. Harlequin’s Gardens has been using an extract of Yucca schidigera, Mojave Yucca, in our plant production for 30 years. Yucca roots are high in saponins which are plant chemicals that are both water and fat soluble. In nature, the saponins enhance nutrient absorption and serve as antifeedants to reduce pest damage.

The yucca product that we carry for our customers has the terrible name ‘Sledgehammer’, because it breaks down salts from high fertilizer use. We offer it for its natural function to release the surface tension of water which greatly helps water absorption into the soil and into the roots and through the cell walls of plants. These effects are particularly useful in helping seeds to germinate and helping drought-stressed plants absorb water and more quickly recover from dehydration.

The label says that Sledgehammer is just yucca. Use it at two teaspoons per gallon of water in normal watering.

We routinely use yucca extract as an emulsifier and ‘sticking’ agent whenever we are applying any kind of spray to plant foliage. This includes foliar feeding, horticultural oil sprays for pest management, or liquid kelp spray for toughening the leaf cuticle to block disease spores.

Mikl figured that if yucca helps with water absorption, then it could help with dehydration that comes with working outside and forgetting to drink water, so he takes one yucca capsule (made by NOW) a day. Yucca has the added benefit of improving nutrient absorption and reducing joint pain. It is said to improve digestion and support gut health.

 

 

 

 

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We do not ship plants!

Our plants are for sale ONLY at our Boulder location. We DO NOT ship plants or any other products.  Come visit us!

Hours by Season

MARCH HOURS
Thursday-Sunday, 9AM-5PM

STARTING APRIL 1
Tuesday-Sunday, 9AM-5PM

 

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Contact Us

303-939-9403 (Retail)
staff@harlequinsgardens.com

4795 North 26th St
Boulder, CO 80301

Sign-up for E-Newsletters!

Sign-up for our weekly e-newsletters to receive empowering gardening tips, ecological insights, and to keep up on happenings at Harlequin’s Gardens — such as flash sales and “just in” plants. We never share customer’s addresses!

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Our Hours

Mondays, CLOSED

JANUARY-FEBRUARY HOURS:
Thursday-Saturday, 10AM-4PM

MARCH HOURS:
Thursday-Sunday, 9AM-5PM

APRIL-SEPTEMBER HOURS:
Tuesday-Sunday, 9AM-5PM

OCTOBER HOURS:
Thursday-Sunday, 9AM-5PM

Closing after Nov. 1

The plants we grow are organically grown. All the plants we sell are free of bee-killing neonicotinoid pesticides.