Gorilla Zkittlez Auto is an indica-dominant autoflower from Fast Buds, currently sold by the breeder as Gorilla Z Auto. Growers also search for it as Gorilla Zkittlez Auto, Gorilla Z Auto, Gorilla Z Auto strain, and Gorilla Zkittlez autoflower, so this guide uses both names where they help identify the same Fast Buds cultivar.
Fruity Zkittlez crosses are easy to grow and easy to enjoy, and there is another worth a look. Our Zkittlez Auto carries that candy-sweet, tropical profile in a fast autoflower, giving you dense, colourful buds and a mellow, balanced high without the need to manage a light schedule.
Recommended Strains
Gorilla Z OG Auto
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THC | 25% - 28% (High) |
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Lineage | Gorilla x Zkittlez x Ruderalis |
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Type | Autoflowering |
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Height | 3.94 ft | 1.2 m |
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Yield | High |
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Yield Indoor | 1.8 - 2.13 oz/ft² | 550 - 650 g/m² |
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Life Cycle | 8 - 9 weeks |
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Phenotype | 70% Indica / 30% Sativa |
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Effects | Relaxed, Happy, Sleepy |
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Flavors | Fruity, Spicy, Woody |
Gorilla Z OG
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THC | 26% - 27% (High) |
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Lineage | GG4 x Original Z |
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Type | Feminized |
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Height | 5.25 ft | 1.6 m |
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Yield Outdoor | 70.55 - 88.19 oz/plant | 2000 - 2500 g/plant |
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Flowering Time | 8 - 9 weeks |
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Phenotype | 60% Indica / 40% Sativa |
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Effects | Powerful, Relaxed, Creative |
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Flavors | Fruity, Berry, Pine |
The breeder currently lists Gorilla Z Auto as a cross of GG4 Auto F6 × Z Auto F5, with 70% Indica and 30% Sativa genetics. It can reach 100–150 cm, produces up to 650 g/m² indoors, and has a breeder-listed cycle of approximately nine weeks.
You can find the Fast Buds Gorilla Zkittlez Auto seeds available at Growlantis.
Gorilla Zkittlez Auto Quick Grow Profile
| Trait | Gorilla Zkittlez Auto / Gorilla Z Auto |
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| Breeder | Fast Buds |
| Official breeder name | Gorilla Z Auto |
| Genetics | GG4 Auto F6 × Z Auto F5 |
| Seed type | Feminized polyhybrid autoflower |
| Indica / Sativa | 70% Indica / 30% Sativa |
| THC | Up to 27.6% |
| CBD | Below 1% |
| Cycle | About 9 weeks |
| Height | 100–150 cm |
| Indoor yield | 550–650 g/m² |
| Outdoor yield | 50–350 g/plant |
| Size | XXL |
| Environment | Indoor, outdoor, greenhouse, mixed light |
| Flavor | Fruity, spicy, woody |
The current breeder specifications should take priority over older or simplified retailer descriptions when the figures differ.
Gorilla Zkittlez Auto, Gorilla Z Auto and Fast Buds
The naming around this cultivar can be confusing.
Growers have historically searched extensively for Gorilla Zkittlez Auto, which is also the terminology Google has associated with this guide. Fast Buds currently markets the cultivar as Gorilla Z Auto, while the Growlantis product listing uses Gorilla Z OG Auto.
For SEO and user clarity, the older Gorilla Zkittlez Auto name should not be removed from this article. Instead, the page should explain the naming difference and connect it explicitly with the current Fast Buds cultivar.
The breeder’s current genetic specification is GG4 Auto F6 × Z Auto F5, rather than simply “Gorilla × Zkittlez × Ruderalis.”
You can browse more autoflower genetics from Fast Buds.
Genetics and Plant Structure
Gorilla Z Auto is a 70% Indica, 30% Sativa autoflower with a larger structure than the word “compact” might suggest.
Fast Buds classifies the plant as XXL and lists a height range of approximately 100–150 cm.
Its indica influence is visible in the broad fan leaves, strong branching, and sturdy overall structure. Multiple flowering sites develop along the branches, while mature plants can produce dark green to purple coloration and dense flowers with heavy resin coverage.
One of the most important cultivation characteristics is its tendency to stretch during the first weeks of flowering.
That means indoor growers should leave enough vertical space rather than assuming Gorilla Zkittlez Auto will remain very short simply because it is an autoflower.
Growing Gorilla Zkittlez Auto Indoors
Indoors, Gorilla Zkittlez Auto benefits from enough vertical and lateral room to accommodate its strong branching and early-flower stretch.
Fast Buds lists plants at up to 150 cm, so an indoor setup should account for both the final plant height and the safe distance required between the canopy and the light.
The breeder also recommends monitoring larger branches when several cultivars share the same grow space. Gorilla Z Auto can outgrow smaller neighboring plants, making gentle branch positioning useful for keeping the canopy more evenly exposed.
Light Schedule: Do Not Switch This Auto to 12/12
Gorilla Zkittlez Auto does not need a 12/12 light-cycle change to initiate flowering.
It is an autoflowering cultivar, meaning the transition into bloom is driven primarily by plant age rather than the seasonal light trigger used by photoperiod cannabis.
A previous version of this guide instructed growers to switch to 12/12 during week seven. That advice should be removed.
Indoor autoflowers are commonly grown under a consistent longer daily light period throughout their lifecycle. The important point for this guide is that there is no required flowering switch.
Managing Height and Flowering Stretch
Fast Buds specifically notes that Gorilla Z Auto can stretch during the first weeks of flowering.
If height is becoming uneven, gently positioning longer branches can help prevent them from shading smaller growth below.
Low-stress adjustments are more appropriate than automatically subjecting a healthy autoflower to aggressive training late in its short lifecycle.
The objective is to preserve vigorous growth while giving the major flowering sites access to light and airflow.
Growing Gorilla Zkittlez Auto Outdoors
Gorilla Z Auto is officially listed for outdoor as well as indoor cultivation.
Fast Buds reports outdoor production ranging from 50 to 350 g per plant, which illustrates how strongly outdoor results can vary with sunlight, climate, root volume, plant health, and growing conditions.
Choose a position with strong direct light and enough airflow around the developing plant. The breeder lists a roughly nine-week cycle, which gives outdoor growers more flexibility than long-season photoperiod plants.
However, a rapid cycle does not eliminate the importance of timing. Starting during a stable warm period gives the plant a better chance of completing its short lifecycle without persistent rain or cold during late flower.
For broader climate and scheduling considerations, see the Growlantis guide to growing autoflowers outdoors.
Gorilla Zkittlez Auto Yield and Height
Fast Buds lists Gorilla Z Auto as an XXL autoflower capable of reaching approximately 100–150 cm.
Its official production figures are:
- Indoor: 550–650 g/m²
- Outdoor: 50–350 g/plant
These figures represent breeder potential rather than guaranteed harvests.
The plant’s relatively large autoflower structure is one reason vertical planning matters indoors. Strong branches and multiple flowering sites can support substantial flower development when light, root growth, watering, and environmental conditions remain stable throughout the short lifecycle.
Gorilla Zkittlez Auto Grow Diary: 9-Week Timeline
Searches for a Gorilla Zkittlez Auto grow diary have historically brought traffic to this page, so the cultivation timeline is worth keeping.
It should not, however, be presented as an exact biological schedule that every seed will follow.
Fast Buds lists approximately nine weeks for Gorilla Z Auto. The timeline below therefore describes a realistic progression based on the breeder’s cycle while allowing for phenotype and environmental variation.
Weeks 1–2: Germination and Early Growth
The first stage is focused on germination, root establishment, and the first sets of true leaves.
Avoid keeping the young root zone continuously saturated. Autoflowers have a short development window, so prolonged early stress can reduce the amount of vigorous growth available before flowering begins.
Gorilla Z Auto does not require a strain-specific germination technique. For the complete process, see how long cannabis seeds take to germinate.
Weeks 3–4: Vegetative Growth and Transition
Growth should accelerate as the root system and branches become established.
This is the period to pay close attention to structure. If a healthy plant begins producing uneven branches, gentle low-stress positioning can improve light distribution before flowering advances.
Autoflowers often begin their transition relatively early, so avoid treating week four as the beginning of a long photoperiod-style vegetative phase.
There is also no 12/12 switch required.
Weeks 5–6: Stretch and Flower Development
The first weeks of flowering are particularly important for Gorilla Z Auto because Fast Buds specifically highlights its tendency to stretch.
Branches can lengthen quickly while multiple flowering sites develop.
Check that the tallest growth still has sufficient clearance from the light and that larger branches are not completely shading smaller ones.
This is also when airflow through the expanding canopy becomes increasingly important.
Weeks 7–8: Bud Density and Resin Production
By the later part of the breeder-listed cycle, flower development becomes the main focus.
Fast Buds describes Gorilla Z Auto as a strong resin producer with dark green or purplish flowers and heavy trichome coverage.
As flowers become denser, avoid stagnant humid pockets within the canopy. Growlantis’ guide to autoflower humidity during flowering explains how humidity management changes as autoflower buds mature.
Week 9: Maturity and Harvest Window
Fast Buds lists Gorilla Z Auto at approximately nine weeks and promotes harvest around 63–65 days.
Use that as a breeder reference rather than an automatic harvest deadline.
Individual plants may mature slightly earlier or later depending on phenotype and growing conditions. Evaluate actual flower maturity rather than harvesting simply because a calendar has reached day 63.
This nine-week structure replaces the previous 12-week cultivation timeline plus additional curing weeks, which did not match the breeder’s current specification.
Watering and Feeding Gorilla Zkittlez Auto
Fast Buds does not publish a single nutrient formula that should be followed regardless of medium or growing conditions.
The breeder instead emphasizes maintaining a consistent feeding and watering regime while avoiding both overfeeding and underfeeding.
This is a more useful approach than assuming every autoflower needs a universally weak nutrient solution.
Watch the plant’s actual response and adjust according to the growing medium, irrigation method, and visible development.
Watering deserves particular attention because a constantly saturated root zone can restrict oxygen and slow early growth during a lifecycle where lost time is difficult to recover.
Common Problems When Growing Gorilla Z Auto
Underestimating Its Height
Gorilla Z Auto can reach 100–150 cm and is classified as XXL by Fast Buds.
Treating it as a very compact autoflower can create height problems indoors, particularly once its early-flower stretch begins.
Changing the Light Cycle to 12/12
A 12/12 transition is unnecessary for this autoflower.
Reducing daily light simply to “trigger” flowering applies photoperiod logic to an age-driven cultivar.
Overwatering Early Growth
Repeatedly saturating a small root system can slow development.
Because an autoflower has limited time before flowering begins, significant early stress can have consequences later in the cycle.
Poor Airflow During Late Flower
The breeder describes Gorilla Z Auto as capable of producing dense, resinous flowers.
As those buds develop, keep air moving through the canopy and monitor humidity rather than relying only on the reading from one part of the grow room.
Gorilla Zkittlez Auto Effects and Flavor
Fast Buds reports THC levels of up to 27.6%, with CBD below 1%.
This is considerably higher than the 18–24% range previously stated in this guide.
The breeder describes an effect that begins with an uplifting, creative head high and gradually develops into stronger physical relaxation.
Its flavor profile combines fruity, spicy, and woody characteristics. Fast Buds also describes citrus, sweet-and-sour candy, tropical fruit, and gummy-like notes within the terpene profile.
Individual experience varies, so these characteristics should be presented as breeder descriptions rather than guaranteed effects for every consumer.
FAQs About Gorilla Zkittlez Auto
What is Gorilla Zkittlez Auto called by Fast Buds now?
Fast Buds currently sells this cultivar as Gorilla Z Auto. Growlantis still receives searches for Gorilla Zkittlez Auto, while its product page uses Gorilla Z OG Auto. The current breeder specification identifies the genetics as GG4 Auto F6 × Z Auto F5, so the guide should preserve the older search term while clarifying the official name.
How long does Gorilla Zkittlez Auto take to grow?
Fast Buds lists Gorilla Z Auto at about nine weeks and promotes harvest in roughly 63 to 65 days. Treat that figure as a breeder benchmark rather than a guaranteed finish date. Phenotype, environment, root development, light intensity, and early stress can all shift the actual harvest window by several days.
How tall does Gorilla Zkittlez Auto usually get?
The breeder lists Gorilla Z Auto at approximately 100 to 150 cm, making it taller than many compact autoflowers. Fast Buds also notes that the plant can stretch noticeably during the first weeks of flowering. Indoor growers should therefore leave vertical space and manage longer branches before they begin shading smaller plants.
What yield can Gorilla Zkittlez Auto produce indoors?
Fast Buds lists indoor production at 550 to 650 g/m² under favorable conditions. Outdoors, the breeder gives a much wider range of 50 to 350 g per plant. These are breeder potential figures, not guaranteed results, because final yield depends on phenotype, light, root volume, climate, nutrition, and overall plant health.
Does Gorilla Zkittlez Auto need a 12/12 light cycle?
No. Gorilla Zkittlez Auto is an autoflower, so flowering is triggered mainly by age rather than a switch to 12 hours of light and 12 hours of darkness. A 12/12 change is therefore unnecessary. Indoor growers commonly keep autoflowers under a consistent longer daily light period throughout the cycle.
Can Gorilla Zkittlez Auto be grown outdoors successfully?
Yes. Fast Buds lists Gorilla Z Auto for indoor, outdoor, greenhouse, and mixed-light cultivation. Outdoors, give it strong sunlight, good drainage, and enough airflow around the developing flowers. Because the breeder lists a roughly nine-week cycle, timing the grow for a stable warm period can help avoid poor weather late in development.
