Golden Barrel
Echinocactus grusonii
A beloved golden-spined globe cactus that looks stunning planted in clusters among desert boulders.
Hardy to about 20°F, USDA 9-11; heat-loving and reliable in the low desert but frost-scars in cold winters.
AMWUA Notes
Iconic water-storing globe cactus that needs almost no supplemental irrigation once established.
Care Guide
Water established plants only every 3-4 weeks in the hottest months; they store water internally and rot quickly in wet or poorly drained soil.
None needed; remove any rotted or sun-scalded tissue, and offsets can be separated to start new plants.
Little to none; a single dilute spring feeding is plenty.
Watch for mealybugs and scale between the ribs; rot from overwatering is the main killer.
The crown can sunburn if the plant is turned or moved, so keep its orientation; protect from hard frost, which leaves disfiguring scars.
Soil, Feeding & Propagation
Decomposed granite or gritty mineral mix; sharp-draining, low organic matter
Needs sharp, fast-draining soil.
None — thrives in lean desert soil without fertilizer.
Offsets (pups) or seed
2-3 ft
Shallow, non-invasive roots; keep the dense golden spines back from walkways and pool decks
Placement Tips
- •Cluster in odd-numbered groups among boulders for the classic effect.
- •Keep the dense golden spines well away from walkways and pool decks.
- •Plant in decomposed granite with sharp drainage.
- •Shield newly purchased plants from sudden intense western exposure to avoid scald.
Features
Best Uses
Companion Plants
Quick Stats
Design Styles
Include in Your Project
Love Golden Barrel? Our landscape team sources from wholesale nurseries and can incorporate it into your design.
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Use this care guide to maintain your Golden Barrel. Questions about your landscape? Reach out anytime.
Data from 2024 AMWUA “Landscape Plants for the Arizona Desert” guide.
Golden Barrel — common questions
Answers for low-desert Phoenix conditions, drawn from this plant’s growing data.
How much water does Golden Barrel need in Phoenix?
Golden Barrel is a low-water cactus once established. Water established plants only every 3-4 weeks in the hottest months; they store water internally and rot quickly in wet or poorly drained soil. Iconic water-storing globe cactus that needs almost no supplemental irrigation once established.
How big does Golden Barrel get?
Expect roughly 2 ft tall and 2 ft wide at maturity, with a slow growth rate. Allow about 2-3 ft of spacing when planting. Shallow, non-invasive roots; keep the dense golden spines back from walkways and pool decks.
Can you plant Golden Barrel near a pool?
Not ideally. Golden Barrel is not rated pool-friendly, so it is better placed away from the pool deck and skimmer. Litter is rated low.
Can Golden Barrel handle Arizona heat and winter frost?
Golden Barrel is hardy in USDA 9-11 and wants full sun. Hardy to about 20°F, USDA 9-11; heat-loving and reliable in the low desert but frost-scars in cold winters. The crown can sunburn if the plant is turned or moved, so keep its orientation; protect from hard frost, which leaves disfiguring scars.
Does Golden Barrel have thorns?
Yes — Golden Barrel has large thorns. Site it back from walkways, seating and pool decks where people brush past.
Is Golden Barrel safe around pets?
Golden Barrel 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 Golden Barrel bloom in Arizona?
Golden Barrel blooms in spring, with yellow flowers.
How much maintenance does Golden Barrel need?
Golden Barrel is low-maintenance. Leaf, flower and pod litter is rated low. None needed; remove any rotted or sun-scalded tissue, and offsets can be separated to start new plants.
What kind of soil does Golden Barrel need?
Decomposed granite or gritty mineral mix; sharp-draining, low organic matter. It needs no supplemental feeding. Little to none; a single dilute spring feeding is plenty.
Is Golden Barrel native to Arizona?
No. Golden Barrel is not an Arizona native; it originates from the Central and Southern Mexico, but it is grown successfully in low-desert landscapes here.