Old Blue Sky

Indica

Also known as: Blue Sky OG, Old Blue

Old Blue Sky Strain Overview

Old Blue Sky is a classic indica-dominant cannabis strain that emerged in the Pacific Northwest region of the United States during the late 1990s. The strain's exact origins remain somewhat obscure, with competing claims about its development, but most sources agree it was cultivated by underground breeders in Oregon and Washington who sought to create a potent, flavorful indica with distinctive blue and purple coloration. The strain gained popularity among medical cannabis patients before becoming more widely available in recreational markets.

The strain is characterized by its dense, resinous buds that often display striking blue and purple hues, particularly when grown in cooler temperatures. These colors result from anthocyanin pigments that become more pronounced as temperatures drop during the flowering phase. The buds are typically covered in a thick layer of trichomes, giving them a frosty appearance. Old Blue Sky has a complex aroma profile that combines sweet, fruity notes with earthy undertones and a hint of pine.

Notable features of Old Blue Sky include its relatively short flowering time for an indica and its resilience to common growing issues like mold and pests. The strain has maintained a dedicated following despite the proliferation of newer hybrids, valued for its consistent effects and distinctive appearance. While not as widely cultivated commercially as some modern strains, it remains popular among home growers and connoisseurs who appreciate classic genetics.

Old Blue Sky Strain Effects

Old Blue Sky Strain Positive Effects

  • Users report relief from chronic pain
  • May help with insomnia and sleep disorders
  • Often used for stress and anxiety reduction
  • Some users find it helpful for muscle spasms
  • Reported to stimulate appetite

This is not medical advice. Consult a healthcare professional.

Old Blue Sky Strain Possible Negative Effects

  • Dry Mouth
  • Dry Eyes
  • Dry mouth
  • Dry eyes
  • Dizziness in high doses
  • Possible paranoia in sensitive users
  • Sedation may be excessive for daytime use

Old Blue Sky Strain Growing Information

Old Blue Sky is considered a moderate-difficulty strain to cultivate, suitable for growers with some experience. The strain has a flowering time of 8-9 weeks indoors and is ready for harvest in late September to early October when grown outdoors. Indoor yields typically range from 400-500 grams per square meter, while outdoor plants can produce 500-600 grams per plant under optimal conditions.

The plant prefers a temperate climate with consistent temperatures and benefits from cooler nighttime temperatures during the final weeks of flowering to enhance its characteristic coloration. Old Blue Sky can be grown both indoors and outdoors, with indoor cultivation allowing better control over environmental factors. The plant tends to stay relatively compact, reaching heights of 90-120 cm indoors and 120-180 cm outdoors.

Special considerations include maintaining good air circulation to prevent mold in dense buds and implementing low-stress training techniques to maximize light penetration. The strain responds well to organic nutrients and benefits from a flush period before harvest. Growers should monitor pH levels carefully, as Old Blue Sky can be sensitive to nutrient imbalances.

Old Blue Sky Strain Genetics

Old Blue Sky Strain Parent Strains

Frequently Asked Questions

How does Old Blue Sky make you feel?

Old Blue Sky is known to produce the following effects:

  • Relaxed: 85%
  • Sleepy: 70%
  • Euphoric: 65%
  • Happy: 60%
What are the positive effects of Old Blue Sky?

Old Blue Sky has these reported positive effects:

  • Users report relief from chronic pain
  • May help with insomnia and sleep disorders
  • Often used for stress and anxiety reduction
  • Some users find it helpful for muscle spasms
  • Reported to stimulate appetite

This is not medical advice. Consult a healthcare professional.

What are the negative effects of Old Blue Sky?

Possible negative effects include:

  • Dry Mouth
  • Dry Eyes
  • Dry mouth
  • Dry eyes
  • Dizziness in high doses
  • Possible paranoia in sensitive users
  • Sedation may be excessive for daytime use
What does Old Blue Sky taste like?

Old Blue Sky has the following flavor profile:

  • Berry
  • Earthy
  • Pine
  • Sweet
  • Woody

Old Blue Sky Similar Strains