Grandaddy Purple (Regular)
Buy Grandaddy Purple Regular Seeds Online Grandaddy Purple (GDP) is one of the most recognizable indicas in cannabis — Purple Urkle x Big Bud genetics that reliably produce the deep purple hues and grape/berry aroma the strain is famous for.
Genetics & Lineage: Purple Urkle x Big Bud, indica-dominant.
Terpene Profile & Aroma: Myrcene-heavy with pinene and caryophyllene support — sweet grape and berry notes with an earthy, floral undertone.
Effects: Strong physical relaxation and sedation with a euphoric mental lift — a classic nighttime strain suited to stress and sleep support.
Grandaddy Purple Yield Indoor & Outdoor:
- Indoor: 1.5–1.75 oz/ft² (~400–450 g/m²)
- Outdoor: 4–6 oz per plant
- Height: Medium, 3.5–5 ft
How to Grow Grandaddy Purple (Grow Guide)
As a regular seed line, expect a roughly even split of male and female plants — useful for growers wanting to select and preserve their own GDP phenotype, particularly the deep-purple expressions the strain is known for. Purple coloration is intensified by cooler night temperatures in the final weeks of flower, so growers chasing the classic look often drop nighttime temps slightly during that window (without stressing the plant). GDP is a relatively easy, resilient grower that tolerates moderate nutrient strength well. Its longer 9–11 week flowering time is the main planning consideration — this strain rewards patience, with both potency and the signature grape aroma developing significantly in the final weeks. Support heavier colas as buds bulk up late in flower.
Grower Notes:
- Purple coloration reported as most pronounced with cooler late-flower nights
- Grape/berry aroma consistently called out as a standout trait
- Longer flowering time noted, but growers report it’s worth the wait
- Popular pick among growers preserving their own purple phenotypes via regular seed











Alescia –
I purchased these Grandaddy Purple Regular Marijuana Seeds since I read that this strain is helpful for joint pain in particular. To a certain degree, I can certainly tell it helps. It was very quick to cultivate the seeds and the color of the buds is really typical of the plant. This plant was pretty good in an outdoor growing environment, she loves the natural rays of the sun and grows well bushy. Although It was not as violet as I saw in the other illustration, but it is beautiful at the same time. Thank you so much for the quick delivery and great customer service SWG!
Christopher Stroup –
What a great strain, small plants yet very high yielding! It produces a very delightful scent, much like grapefruit. I grown it right in the backyard. It’s a really enlightening buzz that gives you a good mood boost to make you get through a stressful or unpleasant morning, and the smoke does too. I notice that it even helps me a great deal in social situations! A terrific weed at a fair price! Thanks a lot SWG!!
Amanda –
stunning purple strain! she has a desirable earthy berry grape taste and woody smell, smoke that wiped out fears and depression. smoking before bedtime,keep me calm and feel sleepy. well,this is good for fighting insomnia so that you can have a deep sleep..this weed is a beginner’s plant for she is easy to cultivate and by planting her in my backyard under sunlight, I cropped good yields nearly 450g/plant..thick nugs covered with trichome crystals..If you have space for indoor growth,you can used the SOG technique to control her growth. More seeds soon!