- Strain Type: Sativa-Dominant Hybrid
- Genetics: P75 × Genius (Jack Herer phenotype)
- Breeder: Brothers Grimm Seeds
- THC Content: 18–25%
- CBD Content: Low (typically under 1%)
- Terpene Profile: Terpinolene, Limonene, Myrcene
- Primary Flavors: Citrus, Pine, Herbal, Sweet
- Flowering Time (Indoor): 7–8 weeks
- Outdoor Harvest Time: Late September
- Indoor Yield: 14–18 oz per m²
- Outdoor Yield: 16–20 oz per plant
- Grow Difficulty: Moderate
Apollo 13 is a legendary sativa-dominant cannabis strain developed by the breeders at Brothers Grimm Seeds. Known for its fast flowering time, strong cerebral effects, and bright citrus aroma, Apollo 13 quickly became one of the most respected hybrids of the late 1990s cannabis breeding era. The strain was named after the famous NASA mission, reflecting the powerful and uplifting mental experience it produces.
Unlike many sativa-heavy hybrids that require long flowering periods, Apollo 13 gained recognition for delivering strong sativa effects in a relatively short flowering cycle. This trait made the strain especially appealing to growers who wanted energetic Haze-style effects without the extended grow times typical of pure sativa genetics.
Over the years, Apollo 13 has developed a reputation among cannabis enthusiasts as a classic connoisseur strain. Its distinctive terpene profile, potent cerebral high, and historical significance in cannabis breeding have helped it remain a respected cultivar within the cannabis community.
Genetics and Lineage
Apollo 13 was created by crossing P75, a selected phenotype of the famous Jack Herer strain, with Genius, another highly prized Jack Herer phenotype. Both parent plants originated from the same legendary genetic family, making Apollo 13 a unique example of selective breeding within a single lineage.
The P75 parent was chosen for its vigorous growth and strong sativa influence. Jack Herer itself is known for combining Haze, Northern Lights, and Skunk genetics to produce a balanced hybrid with uplifting effects and rich terpene expression. By selecting a specific phenotype of this strain, the breeders were able to emphasize particular traits such as potency and growth structure.
The Genius phenotype, discovered by Brothers Grimm, contributed much of the strain’s citrus aroma and clear-headed psychoactive effects. Genius plants are known for producing bright, lemon-like terpene profiles and powerful cerebral stimulation. When combined with the P75 Jack Herer phenotype, the resulting hybrid produced a strain that captured the best qualities of the Jack Herer lineage while developing its own unique identity.
Effects and Experience
Apollo 13 is widely known for delivering a powerful and uplifting cerebral high. The effects typically begin with a burst of mental energy that can elevate mood and sharpen awareness. Many users describe the onset as bright and euphoric, often accompanied by a sense of mental clarity and focus.
As the high develops, the strain’s stimulating qualities become more noticeable. Creative thinking and conversation often feel easier, and everyday activities can become more engaging. Because of these characteristics, Apollo 13 is frequently favored by users seeking an energetic daytime cannabis experience.
Although the high is primarily cerebral, a mild physical relaxation tends to appear later in the experience. This subtle body effect helps balance the mental stimulation and prevents the high from feeling overly intense. The combination of mental energy and gentle physical calm makes Apollo 13 a versatile strain for a wide range of activities.
Medical Benefits
Medical marijuana patients sometimes turn to Apollo 13 for its uplifting psychological effects. The strain’s mood-enhancing properties may help individuals dealing with mild depression or emotional fatigue. Its stimulating cerebral high can encourage a more positive mindset and promote motivation throughout the day.
The strain may also be useful for reducing stress and mental tension. The clear-headed nature of the high can help users shift away from anxious or repetitive thoughts, allowing for a calmer and more focused mental state. For some patients, this mental clarity can contribute to improved productivity and emotional balance.
While Apollo 13 is not typically associated with strong physical sedation, its gentle body relaxation may help relieve mild muscle tension and general physical discomfort. This makes the strain appealing for individuals seeking symptom relief without the heavy sedation produced by stronger indica-dominant varieties.
Flavor Profile and Aroma
Apollo 13 is particularly well known for its bright and refreshing terpene profile. The aroma often features strong citrus notes reminiscent of lemon or sweet grapefruit. When the buds are handled or broken apart, the scent can become more intense, releasing a pungent and slightly sweet fragrance.
During smoking or vaporization, the flavor tends to mirror the aroma closely. The inhale often delivers sharp citrus and lemon flavors accompanied by subtle sweetness. These bright flavors are one of the defining characteristics of the strain and a major reason for its continued popularity.
On the exhale, additional layers of flavor may appear. Slight herbal, pine, and earthy notes inherited from the Jack Herer lineage add depth and complexity to the experience. Together, these flavors create a well-balanced terpene profile that combines citrus brightness with classic cannabis undertones.
Growing Information
Apollo 13 is known for being relatively fast-flowering compared to many other sativa-dominant strains. Indoor flowering typically takes between seven and nine weeks, which is unusually short for a strain with strong Haze lineage. This trait made Apollo 13 especially popular among growers seeking quicker harvests without sacrificing potency.
The plants usually develop a medium height with moderate branching. Because the strain can stretch during the early flowering stage, growers often use training techniques such as topping or low-stress training to maintain an even canopy and improve light exposure.
Outdoor cultivation performs best in warm climates with plenty of sunlight. In favorable conditions, Apollo 13 can produce moderate to high yields of resinous buds. Maintaining good airflow and proper humidity levels during late flowering can help protect the dense buds from mold and ensure a healthy harvest.
FAQ
Is Apollo 13 indica or sativa?
Apollo 13 is a sativa-dominant hybrid known for its energetic and uplifting effects.
What are the parent strains of Apollo 13?
Apollo 13 is bred from the P75 Jack Herer phenotype and the Genius phenotype.
How strong is Apollo 13?
THC levels typically range between 18% and 22%, making it a moderately potent strain.
How long does Apollo 13 take to flower?
Indoor flowering usually takes about seven to nine weeks.
What does Apollo 13 taste like?
The flavor often features bright citrus notes such as lemon and grapefruit, combined with subtle herbal and earthy undertones.
Final Thoughts
Apollo 13 is widely regarded as one of the classic strains produced by Brothers Grimm Seeds. Its unique genetic combination, fast flowering time, and powerful cerebral effects helped establish it as a standout hybrid during the early years of modern cannabis breeding.
The strain’s bright citrus aroma and uplifting psychoactive profile continue to attract cannabis enthusiasts who enjoy energetic daytime experiences. Its balance of mental stimulation and mild physical relaxation allows many users to remain productive while still enjoying a satisfying high.
For growers and connoisseurs interested in historic cannabis genetics, Apollo 13 remains an important strain. Its influence on later breeding projects and its distinctive terpene profile ensure that it continues to be appreciated as one of the notable hybrids in cannabis history.
