Shoestring Acacia
Acacia stenophylla
A graceful weeping tree with long shoestring-like leaves and excellent drought tolerance, ideal for privacy screening.
Hardy to roughly 18-20°F and best in low desert; young trees are frost-sensitive, so protect through the first winters.
AMWUA Notes
Avoid overwatering.
Care Guide
Deep-soak weekly the first year, then only monthly once established; extremely drought tolerant and prone to root rot if overwatered.
Train to a strong central leader and thin the canopy to reduce wind resistance and limb breakage in the brittle wood.
No fertilizer needed; a nitrogen-fixing legume.
Few problems; occasional psyllids.
Cream puffball flowers appear in fall and winter; evergreen pendulous phyllodes with seasonal pod drop.
Soil, Feeding & Propagation
Deep, well-draining sandy or decomposed-granite soil; tolerates caliche and alkaline pH 7.5–8.5 but resents wet clay
Needs well-drained soil.
None — thrives in lean desert soil without fertilizer.
Grown from scarified seed; fast to establish from nursery transplants
15–20 ft
Deep roots are generally non-invasive, but keep 15–20 ft from pools and paving for phyllode and pod drop
Placement Tips
- •Weeping form reaches about 20 ft wide; keep 15-20 ft from pools and patios because it sheds phyllodes and pods.
- •Wood is somewhat brittle, so stake young trees and site away from parking, structures, and high-traffic areas exposed to monsoon winds.
- •Not for tight spaces; give it room to arch and cascade as a xeriscape focal point.
- •Plant in full sun with good drainage; excellent narrow-canopy privacy screen when set 12-15 ft apart.
Features
Best Uses
Companion Plants
Quick Stats
Design Styles
Include in Your Project
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Use this care guide to maintain your Shoestring Acacia. Questions about your landscape? Reach out anytime.
Data from 2024 AMWUA “Landscape Plants for the Arizona Desert” guide.
Shoestring Acacia — common questions
Answers for low-desert Phoenix conditions, drawn from this plant’s growing data.
How much water does Shoestring Acacia need in Phoenix?
Shoestring Acacia is a very low-water tree once established. Deep-soak weekly the first year, then only monthly once established; extremely drought tolerant and prone to root rot if overwatered. Avoid overwatering.
How big does Shoestring Acacia get?
Expect roughly 30 ft tall and 20 ft wide at maturity, with a moderate growth rate. Allow about 15–20 ft of spacing when planting. Deep roots are generally non-invasive, but keep 15–20 ft from pools and paving for phyllode and pod drop.
Can you plant Shoestring Acacia near a pool?
Yes. Shoestring Acacia is considered pool-friendly, meaning it stays clean enough around water features and hardscape. Litter is rated moderate.
Can Shoestring Acacia handle Arizona heat and winter frost?
Shoestring Acacia is hardy in USDA 9-11 and wants full sun. Hardy to roughly 18-20°F and best in low desert; young trees are frost-sensitive, so protect through the first winters. Cream puffball flowers appear in fall and winter; evergreen pendulous phyllodes with seasonal pod drop.
Does Shoestring Acacia have thorns?
No. Shoestring Acacia is thornless, so it is safe alongside walkways, patios and play areas.
Is Shoestring Acacia safe around pets?
Shoestring Acacia is listed as pet-friendly in this guide. If your dog is a determined chewer, check any new plant with your vet before planting.
When does Shoestring Acacia bloom in Arizona?
Shoestring Acacia blooms in fall-winter, with cream flowers.
How much maintenance does Shoestring Acacia need?
Shoestring Acacia is moderate-maintenance. Leaf, flower and pod litter is rated moderate. Train to a strong central leader and thin the canopy to reduce wind resistance and limb breakage in the brittle wood.
What kind of soil does Shoestring Acacia need?
Deep, well-draining sandy or decomposed-granite soil; tolerates caliche and alkaline pH 7.5–8.5 but resents wet clay. It needs no supplemental feeding. No fertilizer needed; a nitrogen-fixing legume.
Is Shoestring Acacia native to Arizona?
No. Shoestring Acacia is not an Arizona native; it originates from the Australia, but it is grown successfully in low-desert landscapes here.