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Granddaddy Purple Strain Information & Review

Granddaddy Purple Strain

The ideal after-dinner date, the Granddaddy Purple strain, will caress you with its warmth and happy effects. Be sure to have some snacks prepared when lighting a roach using Granddaddy Purple weed, as it’ll leave you ravenous but unable to get up to do anything about it. 

Granddaddy Purple strain (aka Grand Daddy Purp, G Purps, Granddaddy Purps, GDP, Gridlock, and Granddaddy Purple Kush )

Before we dive into the full description of this awesome strain, let’s check out the Granddaddy Purple strain info:

  • Type: Mostly indica
  • THC:  Grandaddy Purple Reg: 21%, Grandaddy Purple Fem: 22%
  • CBD: Grandaddy Purple Reg: 0.3%, Grandaddy Purple Fem: 0.4%
  • Top reported effects: Sleepy, hungry, euphoric
  • Top reported flavors: Berry, grape, earthy
  • Dominant Terpene: Myrcene
  • Flowering time: 8–10 weeks
  • Difficulty: Beginner-friendly 
  • Yield: 1.64oz/sq ft indoors, 16.6oz/plant outdoors
Granddaddy Purple Strain Info

Granddaddy Purple strain description

An artistic discovery made in 2003, the Granddaddy Purple strain is a gorgeous Californian creation. This combination of Purple Urkle and Big Bud has left growers in awe of its stunning deep purple flowers and large, compact buds

The perfect evening 4/20 companion, Purple Grandaddy will have you in a happy, dream-like state in no time. The hard-hitting cerebral high is followed by the ultimate relaxation melting away all your negative thoughts. Be sure to clear your calendar when flirting with this beauty, as moving around is next to impossible after lighting up. 

Be careful not to overdo it, as one toke of the Granddaddy Purple strain is enough to leave novice smokers in a couch-lock. 

Granddaddy Purple strain grow information

This beginner-friendly cultivar is relatively easy to grow and shouldn’t give you too much hassle, provided you spend a little time ensuring it has what it needs. 

No matter your grow style, the  Granddaddy Purple strain will fit right in and flourishes in both soil and hydroponic setups. 

It’ll prefer to be indoors in colder areas or places that experience large amounts of rain. With thick foliage, the cannabis strain Granddaddy Purple is susceptible to moisture build-up leading to powdery mildew and bud rot if it’s exposed to too much moisture. The Granddaddy Purple marijuana strain does best outdoors in temperate, continental, sunny, and Mediterranean climates. 

You can expect an 8–10 week flowering time from this beauty with larger than usual harvests and top-quality buds. If you’ve germinated your Granddaddy Purple strain outdoors, you’ll most likely harvest around mid-October. 

Below we’ve put together some Purple Granddaddy strain grow tips.

  • Provide high amounts of phosphorous to encourage maximum yields. Organic guano and kelp are highly recommended for this.
  • The SOG technique has proven successful for Grandaddy Purple.
  • Maintain a relative humidity of 40-50% and temperatures of between 70 and 80°F. If humidity levels are too high, you’ll be stuck with bud rot.

Granddaddy Purple strain genetics 

An artist’s dream, the Granddaddy Purple marijuana strain was created for its gorgeous purple buds and sweet fruity flavors. Its parentage was carefully chosen to create a supreme indica hybrid. 

Let’s take a look at where this exotic prince came from.

Granddaddy Purple Strain Genetics

Granddaddy Purple strain seeds to buy near you

If you’re looking for weed seeds to buy near you, look no further. Our fantastic range of seeds, top-notch customer service, and door-to-door delivery is all you’ll ever need to start you on your grow journey. 

The following are available from our online store.

  • Grandaddy Purple Regular. These seeds will have you beaming from ear to ear if you plan to breed. A 50/50 male-to-female ratio is ideal for those looking to increase their crop numbers. 
  • Grandaddy Purple Feminized. If you’re looking for large, smokable buds without the hassle of seed production, this feminized variant is for you. 
  • Bubblegum Autoflower. This strain is similar to Grandaddy Purple and flowers irrespective of light cycles.

Granddaddy Purple strain reviews

It’s not only us that have fallen in love with Granddaddy Purple marijuana; our clients love it too. 

Check out these Granddaddy Purple strain reviews and see what they have to say.

David R. – Grandaddy Purple regular, 5 stars

These plants were started with 2 other strains. They have surpassed the growth rate of the other strains by twice. Wow

Dennis – Grandaddy Purple regular, 5 stars


The purple hues can’t be seen with very well with the HPS on but they are beautiful girls! They grew about 6 foot tall in an 5×5 eight foot tall gorilla grow tent. They are much larger than I expected. I purchased 8 beans. All 8 germinated and unfortunately one passed away. Out of the remaining 7 two turned out to be girls. The rest were boys. Both girls were around 6 foot tall. I roped them 4 times and they still were massive.

Bb – Grandaddy Purple feminized, 4 stars

i have all ways loved this strain and i love to ba able to grow it my self evev more. I highly recommend you try this and many other seeds on this site because most of them are great.

Bob J. – Grandaddy Purple feminized, 5 stars


Big buds and a great flavor

Blasé – Grandaddy Purple feminized, 5 stars


I really enjoyed growing this strain. Very healthy, robust plant with gorgeous big buds that pack a punch. Glad I have a few beans left.

At the end of the day

If you’re looking for an aesthetically pleasing cannabis plant to join your collection that’ll produce massive buds, high yields, and have all your friends jealous, the Granddaddy Purple weed strain is for you. 

If you’re a novice weed farmer and would like to track your growing progress, the Granddaddy Purple Homegrown Diaries is an excellent place to start. You can also join our community on the Homegrown Forum for all the best tips, tricks, general advice, and strain information.

About the author: Derek LaRose

Also known as Kronic from The Cannabis Kronicles, Derek LaRose is a young ambitious cultivator and a staple educator for indoor cultivation.

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