Description
Growing Tips for Granddaddy Purple
Granddaddy Purple is easy to grow and can be cultivated by folks with limited cannabis growing experience. Granddaddy Purple marijuana plants will thrive indoors and outdoors, but have an easier time growing indoors because of the ability to completely control the climate. If you choose to grow indoors, you will have to replicate a steady environment similar to the climate of the Mediterranean. Granddaddy Purple cannabis seeds produce deep, dark plants with round buds that are coated in trichomes and pistils.
If you choose to grow outdoors, you will need to hope for consistent temperature and humidity to grow these plants to completion. Doing so will ensure that you grow healthy buds from the top of the plants to the buds closest to the soil. Having access to a greenhouse is the best way to give these plants the perfect outdoor climate without having to put up with unexpected outdoor variables. These plants grow short to medium and can reach around 2-6 feet tall. Because the plants reach a maximum indoor and outdoor height of less than 6 feet, these plants will take on a Christmas tree-like shape if they aren’t regularly pruned and trimmed.
The ideal temperature for these plants is around 70-80 degrees Fahrenheit and slightly cooler at night. Humidity levels should be kept around 40-70% during the vegetative growth stage and the flowering stage, but lowering the humidity every week will help this plant grow. Growing indoors will ensure that the moderate humidity levels and moderate temperatures are consistent and maintained every day that the plants are in the growing stages.
Topping, Screen of Green (ScrOG), and Low-stress training (LST) methods are the best training techniques for this particular strain of cannabis. If performed correctly and at the right time, these techniques will promote bud production and increase final yields. LST helps manipulate the plants by tying down the branches to increase the size and density of the buds while allowing them to grow almost naturally. Topping will help keep the plants manageable by trimming the tops so the canopies don’t overgrow. The “Green” methods will help to reinforce the heavier bud sites so the buds don’t bend or break the limbs of the plant. The Granddaddy Purple strain requires an 18-20 hour light cycle to reach the vegetative growth stage. Changing the light cycle to a 12/12 cycle will induce the flowering stage of growth.
Yields, Flowering Time, and Harvest
- Flowering Time: Growing indoors, you can expect the Granddaddy Purple strain to harvest after a short flowering period of 50-60 days.
- Yields: While Indoor yields are around 400 grams per square meter, outdoor grows typically produce up to 500 grams per plant. These yields are full of potent and pungent buds that should last you a while.
- Harvest: Outdoor growers can plan on harvesting their yields around the beginning of October, depending on when the seeds were planted.
Granddaddy Purple: Grape Sweetness
The Granddaddy Purple cannabis strain terpene profile is directly responsible for how the plant smells and tastes, and the strong effects it has on its users. The most dominant terpene in this strain is caryophyllene, while limonene, linalool, and myrcene are the secondary terpenes.
- Caryophyllene: Most Dominant – This is known as the spicy or peppery terpene and can be found in cloves, black pepper, and cannabis plants.
- Limonene: Secondary Terpene – Limonene is found mostly in the rinds of citrus fruits such as lemons and oranges.
- Linalool: Flowery Aroma – Linalool gives cannabis plants their flowery aroma, similar to lilacs and/or lavender.
- Myrcene: Mother of All Terpenes – Myrcene is earthy and found almost exclusively in cannabis plants.





















These seeds are high quality. You can tell just by looking at them that they are mature and ready. The growth has been steady and the plants are showing great vigor. I will be recommending them.
Fast shipping and perfect germination rates.
I had a question about nutrient schedules and the blog on their site was super helpful. It is nice to buy from a company that actually provides resources. The GDP plants are now covered in beautiful orange pistils and look stunning.
I am impressed by the consistency. Every plant in my tent looks identical which is a sign of great breeding. The potential is exciting but I am more impressed by how hardy these plants are. They handle fluctuations in humidity well.
Great experience with the support team.
Impressive yield from these healthy plants.
Shipping was fast and very discreet. The seeds germinated perfectly and the seedlings are very healthy. I am growing these in a small tent and they are responding well. Very impressed with the quality.
Highly recommend these feminized GDP seeds.
Vigorous growth and very easy maintenance.
The vitality of these seeds is unmatched. They practically jumped out of the soil. I am currently using a 77 degree daytime temp as suggested and the plants look incredibly happy. This lineage is clearly very high quality for indoor growers.