Granddaddy Purple Strain Review (& Grow Guide)

When cannabis enthusiasts think about purple strain varieties, one specific classic comes to mind – and that is Granddaddy Purple.

The legendary Indica-dominant strain delivers high THC content, delicious flavor coupled with its plants that are relatively easy to grow.

This article covers Granddaddy Purple’s lineage, effects, and offers some growing tips, as well as some interesting insight into purple strains.

Granddaddy Purple Strain (At a glance)

Effects: Appetite, Euphoria, Spacy/Cerebral
Helps With: Anxiety, Depression, Chronic Pain, Stress
Indoor Yield: 14 to 17 ounces per square meter
Outdoor Yield: 17 ounces per plant outdoors
Flowering Time: 8-11 weeks
Outdoor Harvest Time: Mid-October
THC Content: 17%
CBD Content: 15%
Indoor Plant Height: 3ft
Outdoor Plant Height: 8ft
Grow Difficulty: Easy
Genetics: Purple Urkle X Big Bud
Flavors: Candy, Grape, Strawberry
Best place to buy seeds: ILGM

Where To Buy Granddaddy Purple Seeds

ILGM

GRANDDADDY PURPLE

5 seeds = $99

10 seeds = $119

Buy Now

Seedsman

GRANDDADDY PURPLE

5 seeds = $128.77

Buy Now

MSNL

GRANDDADDY PURPLE

10 seeds = $94.30

Buy Now

Crop King Seeds

GRANDDADDY PURPLE

5 seeds = $65

10 seeds = $120

Buy Now

Free Cannabis Seeds? Check out my list of the best seed bank promotions – Including FREE Seeds, discount codes, and giveaways!

What Is Granddaddy Purple?

Granddaddy Purple is a classic cannabis strain that was introduced by San Francisco-based breeders in 2003.

This Indica-dominant strain is perhaps the best-known variety of purple cannabis, which gets its iconic name from the color of its flower and some of the leaves of the maturing Granddaddy Purple plant.

Where Does Granddaddy Purple Come From?

Granddaddy Purple is a hybrid with highly stable genetics. Its parents are Purple Urkle and Big Bud.

GDP’s deep, beautiful purple color comes from its Purple Urkle parent and the dense, thick buds on Grandaddy Purp are thanks to its Big Bud lineage.

Also called Grand Daddy Purps, this strain originates in San Francisco in 2003 from a breeder named Ken Estes and his team.

How Does Granddaddy Purple Make You Feel?

Granddaddy Purple is a quintessential Indica variety, with users feeling its effects mostly in the body.

However, there can be a bit of a head rush with Granddaddy Purple, depending on where you get it from.

Granddaddy Purple is often consumed at nighttime and used form treating chronic pain, depression, and insomnia.

How Strong Is Granddaddy Purple?

Granddaddy Purple can be a very potent strain, with most buds from dispensaries and retail locations averaging up to 23%.

A classic Indica variety, Granddaddy Purple is best suited for experienced cannabis consumers who are looking to relax in the evening, help them sleep, or get some pain relief.

What Does Granddaddy Purple Taste Like?

Granddaddy Purple is a delicious tasting strain, with the main flavors of grapes, berries, and other sweet fruits hitting the palette on the inhale.

There are hints of spiciness and herbal flavors as well, the two of which being more noticeable as the consumer exhales.

Is Granddaddy Purple Indica Or Sativa?

Granddaddy Purple is a classic Indica-dominant strain. Typically, this well-known hybrid is made up of 70% Indica and 30% Sativa.

As is the case with most Indica-dominant strains, Granddaddy Purple users tend to feel relaxed, euphoric, and occasionally and bit sleepy – making this strain a good choice for nighttime consumption.

What Strain Is Granddaddy Purple?

Granddaddy Purple is an Indica-dominant hybrid of two highly stable strains called Purple Urkle and Big Bud.

Granddaddy Purple is perhaps the best-known purple strain, although many cannabis enthusiasts agree that it’s identical to the strain Grape Ape.

Granddaddy Purple’s deep, attractive purple color and grape, fruity flavors make it a favorite for connoisseurs.

What Does Granddaddy Purple Smell Like?

Granddaddy Purple has a pungent aroma of earthy and spicy, with a hint of grape and other sweet berries. The flavor and aroma of Grand Daddy Purps have positioned this strain into a classic crowd favorite, with the iconic purple-colored buds and leaves standing out in the crowd.

How Much CBD Is In Granddaddy Purple?

Granddaddy Purple is not a strain with significantly high CBD content.

Most dispensaries carry Granddaddy Purple products with 0.50% CBD, although some users have reported finding Granddaddy Purple buds with up to 1% CBD.

How Much THC Is In Granddaddy Purple?

Most Granddaddy Purple buds you can buy in dispensaries range between 18-23% THC content.

In rare cases, some consumers report that they’ve had some varieties of Granddaddy Purple flower that reach up to 35% THC.

Granddaddy Purple Yield

When grown outdoors, Granddaddy Purple strain can yield up to a pound per plant or about 450 grams.

When grown indoors, most home growers can get about 12-14 ounces per square meter of grow space.

Experienced home growers can get a yield of 17-19 ounces from Grandaddy Purple plants grown in perfect conditions.

Granddaddy Purple Flowering Time

Granddaddy Purple spends about 8-11 weeks in its flowering time.

The flowering time of GDP depends on the origin of the seeds, the growing conditions, and the growing medium.

If you get auto-flowering seeds, you might cut down the flowering time to 7 weeks, although buds must have enough time to mature and produce cannabinoid-rich trichomes.

Is Granddaddy Purple Easy To Grow?

Granddaddy Purple strain is relatively easy to grow, as long as you pay close attention to the humidity, which this hybrid prefers to be right around 50%.

It’s also important to prune purple strains often and give them adequate ventilation. GDP is resistant to pests and will grow equally well in both soil and hydro, although the best results might come from indoor grows.

How Tall Does Granddaddy Purple Get?

Granddaddy Purple strain will grow to be one of the tallest Indica-dominant strains there is.

Even though it’s a short and bushy plant, GDP can grow to three feet tall and even up to eight feet outdoors when left alone.

This noticeable growth is the reason why it’s important to prune and trim your Grand Daddy Purp plants to keep them under control

How To Grow Granddaddy Purple?

Granddaddy Purple strain is a pest and disease resistant, versatile plant that is a strong grower in both soil and hydro.

Although GDP buds grown indoors tend to produce more cannabinoid and terpene-rich trichomes, it doesn’t take a botanist or a growing expert to grow big, outdoor Grand Daddy Purp plants.

How Long To Veg Granddaddy Purple

Granddaddy Purple strain stays in its vegetative stage for about 70 days.

If you have feminized, auto-flowering seeds, you will most likely not have to worry about when the plant starts its flowering stage.

How Long To Flower Granddaddy Purple?

Granddaddy Purple strain should be in its flowering stage for at least 8 weeks.

Certain seeds from expert breeders can be ready to harvest in as little as 7 weeks, although others can take up to a full 11 weeks to flower.

It’s best not to rush the flowering stage, as this is the time when your plants develop their strong potency and delicious flavors.

When To Harvest Granddaddy Purple?

Purple strains are one of the best choices for beginner growers, because their beautiful purple hues on the flowers and leaves indicate it’s close to harvest time.

Purple strains usually start to show their attractive deep colors about a week or two before they are ready to harvest.

To be sure, take a magnifying glass and look at the flowers.

If the trichomes are white and the pistils are reddish-brown it’s time to harvest.

However, if you notice that the trichomes are clear, harvest time must wait because the plant is not yet ripe.

When Does Granddaddy Purple Turn Purple?

Granddaddy Purple strain usually shows its purple color about a week or two before it’s ready to be harvested.

There are hints and hues of purplish colors on the plants when they start to flower, but typically not during the vegetative stage.

GDP showing its purple color is a good way to tell it’s close to harvest time.

Is Granddaddy Purple Always Purple?

Granddaddy Purple strain, like all purple varieties, will always be purple if you get quality seeds.

Naturally, plants will vary widely and are almost always individually unique, so the purple color of GDP females will also vary depending on the growing location.

How Does Grandaddy Purple Compare To Other Strains?

Let’s take a look at how Grandaddy Purple compares to some other popular strains…

Granddaddy Purple vs. Grape Ape

Both these strains are pretty similar and have similar genetic histories.

Grand Daddy Purple and

Northern Lights are epic Indica strains that people typically use to combat stress, pain, and fatigue.

They are high in THC levels ( up to 30%), and both strains provide a couch-locking, calming high with an intense sleepy feeling on the afterburn.

Grand Daddy Purple has a sweet, candy flavor with hints of berry or grape.

Grape Ape is also sweet, with hints of berry and grape.

Both strains are relatively easy to grow and thrive indoors due to their short height and dense flowers.

Both strains take 8-9 weeks to flower and thrive better indoors.

They also produce similar yields of up to 17-19 ounces per square meter.

Check out my full Grape Ape Strain Review (& Grow Info)

Granddaddy Purple vs. Northern Lights

Grand Daddy Purple and Northern Lights are epic Indica strains that people typically use to combat stress, pain, and fatigue.

They are high in THC levels ( up to 305), and both strains provide a couch-locking, calming high with an intense sleepy feeling on the afterburn.

Northern Lights has a spicy, earthy aroma in terms of taste and smell.

Grand Daddy Purple has a sweet, candy flavor with hints of berry or grape.

Both strains take 8-9 weeks to flower and thrive better indoors.

They also produce similar yields of up to 17-19 ounces per square meter.

Check out my full Northern Lights Strain Review (& Grow Guide)

Granddaddy Purple vs. Purple Punch

Grand Daddy Purple and Purple Punch have a similar genetic makeup as they are Indica-dominant strains.

Grand Daddy Purple is higher in THC levels ( up to 30%), whereas Purple Punch has levels of THC (up to 21%).

Purple Punch contains 1% CBD, which does not sound like much of a difference but ends up making a significant impact on the high.

And both strains provide a couch-locking, calming high with an intense sleepy feeling on the afterburn.

Grand Daddy Purple has a sweet, candy flavor with hints of berry or grape.

Purple Punch is famous for its blueberry, vanilla flavor stories Punch and offers high resistance to mold.

Both strains take 8-9 weeks to flower and thrive better indoors. GDP produces yields of up to 17-19 ounces per square meter.

However, purple punch strains produce only moderate yields, around 15-17 ounces per square meter.

Check out my full Purple Punch Strain Review (& Grow Info)

Granddaddy Purple vs. Purple Kush

Grand Daddy Purple and Purple Kush are both Indica strains.

Purple Kush is a 100% pure indica strain created as a potent cross between the insanely popular Hindu Kush X Purple Afghani strains.

It has a THC level that ranges from 22% on average, Grand Daddy Purple is higher in THC levels ( up to 30%), and both strains provide a couch-locking, calming high with an intense sleepy feeling on the afterburn.

Grand Daddy Purple has a sweet, candy flavor with hints of berry or grape.

Comparatively, Purple Kush has an iconic smell of earthy sweet grapes and a taste of earthy red wine.

It tastes like a fruity grape flavor that people enjoy a lot. Both strains take 8-9 weeks to flower and thrive better indoors.

Grand Daddy Purple yields 17-19 ounces per square meter, whereas Purple Kush yields approximately 15 ounces per plant.

Granddaddy Purple vs. Blue Dream

Grand Daddy Purple and Blue Dream are Indica strains that people typically use to combat stress, pain, and fatigue.

However, Blue Dream is a hybrid cross achieved by crossing blueberry and haze, with an extremely low CBD concentration.

Blue dream has a lower THC of 18% than GDP, which has an extremely high level of 30%.

They both have similar flavors as Grand Daddy Purple has a sweet candy flavor with hints of berry or grape, Blue Dream smells like blueberries, and has a sweet taste.

Flavors Both strains take 8-9 weeks to flower and thrive indoors.

Blue dream yields up to 17-19 ounces per square meter.

GDP strains produce high yields of up to 20-22 ounces per plant if grown outdoors.

Check out my full Blue Dream Strain Review (& Grow Guide)

Granddaddy Purple vs. Gelato

Although Grand Daddy Purple is an Indica dominant strain, whereas Gelato is a hybrid strain, GDP is higher in THC levels ( up to 30%) than GelatoGelato, which has lower THC levels (17-21%).

Both Grand Daddy Purple and Gelato have a similar taste and aroma.

Both strains give off a sweet, candy flavor with hints of berry or grape. However, Gelato has a much sweeter, berry aroma and creamy aftertaste.

Both strains take 8-9 weeks to flower and thrive better indoors.

They also produce similar yields of up to 17-19 ounces per square meter.

Check out my full Gelato Strain Review (& Grow Guide)

Granddaddy Purple vs. Bubba Kush

Grand Daddy Purple and Bubba Kush are Indica dominant strains that combat stress, pain, and fatigue.

In Bubba Kush, THC levels can be 17%, Whereas GDP is higher in THC levels ( up to 30%).

When it comes to their effects, both strains provide relaxing yet cerebral effects on the body, making you feel calmer.

Grand Daddy Purple has a sweet, candy flavor with hints of berry or grape.

In contrast, Bubba Kush has a more sweet, piney flavor.

Both strains take 8-9 weeks to flower and thrive better indoors.

GDP produces yields of up to 17-19 ounces per square meter.

Bubba Kush, on the other hand, produces yields of 15 ounces or more per plant.

Check out my full Bubba Kush Strain Review (& Grow Guide)

Granddaddy Purple vs. 9lb Hammer

Grand Daddy Purple and 9 Pound Hammer are indica dominant hybrids, but the latter has a higher (80% indica/20% sativa).

Both strains provide sedating, couch-locking high perfect for night-time smoking.

Granddaddy Purple is higher in THC levels ( up to 30%).

However, their taste and aroma are pretty similar.

9 lb Hammer has a sweet grape aroma with a hint of earth and a taste of sweet berry lime that intensifies as you exhale.

Similarly, Grand Daddy Purple has a sweet, candy flavor with hints of berry or grape.

Both strains take 8-9 weeks to flower and thrive better indoors.

They also produce similar yields of up to 17-19 ounces per square meter.

Granddaddy Purple vs. Blackberry Kush

Grand Daddy Purple and Blackberry Kush are both Indica strains.

However, Blackberry Kush weed is a heavily indica-dominant hybrid (80:20).

It is a cross of Blackberry with either Afghani or Bubba Kush. However, some people believe it is a cross of DJ Short’s Blueberry and Afghani.

It has a THC level that ranges from 16% on average, Grand Daddy Purple is higher in THC levels ( up to 30%), and both strains provide couch-locking, euphoric high, and deep relaxation.

Grand Daddy Purple has a sweet, candy flavor with hints of berry or grape.

Blackberry Kush has a robust, earthy, diesel flavor coupled with sweet blackberries. Both strains take 8-9 weeks to flower and thrive better indoors.

Grand Daddy Purple yields 17-19 ounces per square meter, whereas Blackberry Kush can produce 18 ounces per plant.

Granddaddy Purple vs. Pink Kush

Grand Daddy Purple and Pink Kush weed are primarily indica. Strain experts believe that Pink Kush’s indica dominance may run up to 90%.

Grand Daddy Purple is higher in THC levels ( up to 30%), and both strains provide a couch-locking, calming high with an intense sleepy feeling on the afterburn.

However, despite its low number of sativa, Pink Kush has more of an uplifting high. Pink Kush has a vanilla flavor, with hints of wood and earth.

Grand Daddy Purple has a sweet, candy flavor with hints of berry or grape.

Both strains take 8-9 weeks. Granddaddy

Purple yields of up to 17-19 ounces per square meter, Outdoor growing may yield 25 ounces or more for Pink Kush.