SKU: 54233729701
blue pencil cactus

blue pencil cactus Buy Fat Blue Myrtle Cactus Phoenix, AZ | M. geometrizans

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Description

blue pencil cactus Buy Fat Blue Myrtle Cactus Phoenix, AZ | M. geometrizansThe Thickest Blue Columnar Cactus for Phoenix Desert Landscapes Fat Blue Myrtle Cactus (Myrtillocactus geometrizans fat form) is a bold, sculptural columnar cactus prized for its unusually thick blue green stems and striking vertical growth. Unlike the standard Blue Myrtle, this fat form develops wider, more robust columns that create a powerful architectural presence in any landscape. The powdery blue skin gives it an almost metallic shimmer in the

The Thickest Blue Columnar Cactus for Phoenix Desert Landscapes

Fat Blue Myrtle Cactus (Myrtillocactus geometrizans fat form) is a bold, sculptural columnar cactus prized for its unusually thick blue-green stems and striking vertical growth. Unlike the standard Blue Myrtle, this fat form develops wider, more robust columns that create a powerful architectural presence in any landscape. The powdery blue skin gives it an almost metallic shimmer in the Phoenix sun, and its slow-growing, low-maintenance nature makes it ideal for modern desert designs. Whether you're creating a dramatic focal point in a Scottsdale courtyard, flanking a Chandler entryway with living columns, or building a collector's cactus garden in Mesa — Fat Blue Myrtle Cactus delivers serious visual impact with zero fuss.

Fat Blue Myrtle Cactus Plant Details

Attribute Detail
Scientific Name Myrtillocactus geometrizans (fat form)
Common Names Fat Blue Myrtle Cactus, Fat Blue Candle, Garambullo
Mature Height 6–12 feet
Mature Width 4–8 feet (multi-branching candelabra form)
Growth Rate Moderate — 6–12 inches per year in Phoenix once established
Sun Full sun (6+ hrs). Handles reflected heat from walls.
Water Low once established. Highly drought-tolerant.
USDA Zones 9–11 (Phoenix is Zone 9b–10a)
Soil Well-draining. Adapts to Arizona caliche soils with amendment.
Foliage Evergreen — powdery blue-green columns year-round
Special Feature Extra-thick stems with blue powdery coating — the fattest form available

Fat Blue Myrtle Cactus Uses in Phoenix Landscapes

Architectural Focal Point

Fat Blue Myrtle's thick blue columns make it a natural sculptural centerpiece for modern desert courtyards, entry gardens, and xeriscape beds. A single specimen surrounded by decomposed granite and accent boulders commands attention without competing plants. The blue skin creates stunning contrast against warm-toned stucco walls, Cor-Ten steel, and terracotta. For maximum impact, uplight at night to cast dramatic column shadows.

Statement Entryway Planting

Plant a matching pair of Fat Blue Myrtles on either side of a front door, driveway, or gate for a bold, symmetrical welcome. Their vertical form draws the eye upward while the blue color reads as sophisticated and intentional. Choose 15–25 gallon specimens for instant height and presence.

Desert Garden Background Column

Use Fat Blue Myrtle as a tall backdrop behind lower agaves, barrel cacti, and desert shrubs. Its vertical growth adds height without significant spread, making it ideal for layered desert plantings. Pair with Golden Barrel Cactus, Desert Spoon, and Agave americana for a classic Arizona desert composition. Space 4–6 feet from neighboring plants.

Best Time to Plant Fat Blue Myrtle Cactus in Phoenix

Late spring through early fall (April–October) is ideal for columnar cacti. Warm soil and air temperatures promote root establishment and reduce the risk of rot from cold-wet conditions. Avoid planting in winter when cold temperatures and dormancy slow root growth. For container-to-ground transplants, May through September is the sweet spot.

How to Plant Fat Blue Myrtle Cactus

  1. Dig wide, not deep — Excavate a hole 2–3x the width of the root ball, same depth. Never plant deeper than the original soil line.
  2. Check for caliche — Break through any hardpan layer. Columnar cacti absolutely require excellent drainage.
  3. Backfill with native soil — Mix in 30% pumice or perlite for improved drainage. No compost needed.
  4. Spacing — 4–6 feet apart for grouped plantings; 6+ feet for standalone specimens.
  5. Do not water immediately — Let the roots callous for 3–5 days after transplanting before the first watering.
  6. Mulch with gravel — 2–3 inches of rock mulch around the base. Avoid bark mulch that retains moisture against the trunk.

Watering Fat Blue Myrtle Cactus in Phoenix

First Year Watering Schedule

After initial callous period (3–5 days): Water deeply every 10–14 days.
Months 1–3: Every 10–14 days during warm months; monthly in winter.
After Year 1: Every 2–3 weeks in summer; once monthly or less in winter.
Established plants (3+ years): Survive on rainfall alone in most years.

Drip Irrigation

Place 1–2 GPH emitters 18–24 inches from the trunk base. Columnar cacti are highly sensitive to overwatering — always err on the dry side. Root rot is the #1 killer. If unsure, wait another week before watering.

How big does Fat Blue Myrtle Cactus get?
In Phoenix, Fat Blue Myrtle typically reaches 6–12 feet tall with a multi-branching candelabra form 4–8 feet wide. Growth rate is moderate at 6–12 inches per year once established. Larger specimens with multiple branches can take 10–15 years to develop their full form.

What's the difference between Fat Blue Myrtle and regular Blue Myrtle?
Same species (Myrtillocactus geometrizans), but the fat form develops noticeably thicker, wider columns. Standard Blue Myrtle has thinner, more pencil-like branches. The fat form creates a bolder, more substantial presence in the landscape.

Is Fat Blue Myrtle Cactus cold hardy in Phoenix?
It handles typical Phoenix winters well but can suffer damage below 25°F. In unusually cold winters, protect young plants with frost cloth. Mature specimens are more cold-tolerant. Plant in a warm microclimate (south or west-facing wall) for extra protection.

Does Fat Blue Myrtle Cactus produce fruit?
Yes — Myrtillocactus produces small edible purple berries called garambullo, popular in Mexican cuisine. You may see small greenish-white flowers along the ribs in spring, followed by fruit clusters. The berries attract birds and add seasonal interest.

You May Also Like

Blue Myrtle Cactus — The standard form with thinner columns and a more open branching habit.
Crested Blue Myrtle — A rare crested mutation with dramatic fan-shaped growth, perfect for collectors.
Totem Pole Major — A smooth, spineless columnar cactus with a bold sculptural presence.
San Pedro Cactus — A fast-growing columnar cactus with ribbed green columns, great for quick height.

How Many Fat Blue Myrtle Cactus Do I Need?

This is a thick, multi-branching columnar cactus that matures 4 to 8 feet wide, so it is planted as a specimen or a spaced row of living pillars rather than a tight hedge. Use the grouping guide below, measuring center to center.

Planting use Spacing (on center) Layout
Single focal column n/a One specimen in granite with accent boulders
Entry pair 4 to 6 ft apart Two matched plants flanking a door or gate
Sculptural cluster 5 to 6 ft apart Odd-numbered group of 3 or 5 so each column stands clear
Spaced backdrop row 6 ft apart 5 plants span roughly 24 to 30 ft of bed

Fat Blue Myrtle Cactus Season-by-Season in Phoenix

  • Spring (Feb to Apr): Small greenish-white flowers open along the ribs as days warm, the start of the garambullo fruit cycle. A good second window to plant once nights stay above the mid 40s.
  • Summer (May to Sep): Peak growth season. The thick blue columns shrug off Phoenix heat and reflected warmth from south and west walls. Monsoon humidity and rain push a flush of new branching, but keep the root zone on the dry side since rot is the main risk in wet heat.
  • Fall (Oct to Nov): Prime planting season with warm soil and easing heat. Berries finish coloring and draw birds. Roots establish quickly before winter.
  • Winter (Dec to Jan): Holds its blue evergreen structure but is the tender season. Expect cosmetic damage below about 25°F. Cover young plants with frost cloth on hard-freeze nights and site them against a warm wall for protection.

At a Glance

✔ Heat-Loving (Reflected-Heat Tolerant)   ✔ Drought-Tolerant   ✔ Evergreen   ✔ Low-Maintenance   ✔ Pollinator-Friendly   ✔ Edible   ✔ Deer & Rabbit-Resistant   ✔ Cold-Hardy to 25°F

Plant It With

  • Blue Myrtle Cactus: the standard thinner-columned form, a natural companion for a graduated blue grouping.
  • Crested Blue Myrtle: the fan-shaped crested mutation of the same species, a collector's accent at the base.
  • Mexican Fence Post: a slim green columnar cactus that contrasts the fat blue columns for added vertical rhythm.
  • Golden Barrel: a low golden globe that grounds the tall blue columns at ground level.

Is Fat Blue Myrtle Cactus Right for Your Yard?

It thrives in full sun with sharp drainage, including hot reflected-heat spots against stucco or block walls, and asks for very little water once established. Give it room for the 4 to 8 foot branching spread and a warm microclimate so winter cold stays survivable. It is not a fit if your soil stays soggy or your planting spot drops well below 25°F without protection, since prolonged cold-wet conditions cause rot and frost scarring.

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SKU: 54233729701

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Jodie Lott
Lexington, US
★★★★★ 5
Survives agressiveness
Color: Large - Billy the Beast Monster
This toy is absolutely for aggressive chewers,my yorkies usually have their stuffed animals torn apart within a day,been a week and not 1 rip! Very happy with it and worth the money!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
J
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John
Draper, US
★★★★★ 4
Great except for one small flaw
Color: Regular - Beak, Color: Regular - Beak
Our dog likes to get at the juicy innards of every toy we buy him. We tried this one as it promised to be "bullet proof". It lasted about a week which in fairness is 6.5 days longer than most of the toys we buy last. He ripped off the wings which was to be expected and not an issue. It took him another 6 days to finally locate a weak point and break in. It appears that the tag is not made of kevlar but merely sewed on. I guess it would be better if they had just sewed it on top but they made it part of the overall structural integrity. This provided a small area of weakness which our dog located and proceeded to exploit. It's like having the death star but installing a small thermal exhaust port that allows for access to the very core of the station. Makes little sense. Overall I am pleased with the overall sturdiness but in the end this toy had a small design flaw that my dog was able to locate and exploit in his neverending quest to gain access to and eat polyester fiber stuffing
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
K
Verified Purchase
Kym Brunner
Grantham, US
★★★★★ 5
STRONG AS A MONSTER (albeit a cute one)
Color: Large - Billy the Beast Monster, Color: Large - Billy the Beast Monster
My aggressive chewer ate the adorable monster's ear off on the first day, but who cares? The body of the monster has been indestructible so far (one week). My 7 month old pup cbews it for a good 10-15 minutes at a time several times per day. Great quality product and outlasting all the other toys I bought (which she destroyed in 10 minutes - even the ones rated "Level 4 toughness" from Walmart. I think it's hilarious in my photo that the monster's expression perfectly shows his disappointment about missing an ear, LOL.
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Reviewed in the United States on June 3, 2026
L
Verified Purchase
Lorene
Whiting, US
★★★★★ 5
King has met his match.
Color: Large - Billy the Beast Monster
I received my dog's toy this evening when I place the toy on the ground my dog King went crazy. He is a one-year-old Pitbull and love to tackle any toy he believes he can't take down, but Mr King has met his match with this toy. He was using all of his bite force to demolish the toy but the toy actually has worn him out. He ran around my yard for about 30 minutes with the toy in his mouth producing the squeaking sound from the toy as well. Hold up the toy is totally filthy with dirt almost covering the entire green and yellow belly of the toy. I have brought king mini toys in the last couple of months and this is the best toy that holds up to his energy level. I tried to retrieve the toy and place it in his dog house because it is far beyond his bedtime, but he wanted to play catch me if You can with my new toy. This is a great toy for those big energetic dogs that love to take their aggression out on maybe some furniture or perhaps that favorite shoe you do not want them to chew on. I am totally sold on this toy I brought from the seller who placed the items on the Amazon site. I plan on purchasing a another toy from the buyer to keep King energy at a low level if I can. I just checked on my dog and he actually has taken the toy with him inside of his dog house and now the toy is snugged under his left paw. I'm one of those smart owners I'm not going to even try to take it from him tonight but hopefully in the next week I can sneak it from him and it may be perhaps wash it. I did this item AA Plus
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Reviewed in the United States on January 31, 2026
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Verified Purchase
BBarry
Carnegie, US
★★★★★ 3
Cute, but not Maligator-proof!
Color: Small - Towering Timmy Monster, Color: Small - Towering Timmy Monster
Fun toy while it lasts. My Belgian Malinois made quick work of this little guy but still enjoys playing with its carcass. Bite Force* but not taking into account the bite force of a Mali-gator!
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Reviewed in the United States on May 7, 2026

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