Granddaddy Purple Auto cannabis seeds

Granddaddy Purple Auto

Granddaddy Purple Auto is a feminized autoflower from Royal Queen Seeds with 75 percent indica, 20 percent sativa and 5 percent ruderalis. This seed suits you if you want a compact plant that flowers on its own and combines a relaxing, fruity profile with a manageable height.

The genetics come from Granddaddy Purple crossed with Big Bud Auto. The original line traces back to Purple Urkle (Afghan x Skunk) and a Mendocino Purps phenotype. That gives you the purple look and the dense bud structure of the photoperiod version, but in a cycle that does not depend on a changing light schedule.

Features and Specifications

• Type: 75% Indica, 20% Sativa, 5% Ruderalis
• Gender: Feminized autoflower
• Genetics: Granddaddy Purple x Big Bud Auto
• THC: 19%
• CBD: Low
• Flowering time: 55 - 60 days
• Harvest: 70 - 85 days after germination
• Indoor height: 60-140 cm
• Indoor yield: 375 - 450 gr/m²
• Outdoor height: 150 cm
• Outdoor yield: 70-120 g per plant
• Climate: Long summers

Detailed Growing Information

Indoors, Granddaddy Purple Auto stays easy to manage. The plant grows to 60 to 140 cm and therefore fits in a tent or a smaller grow space. Flowering lasts 55 to 60 days. The full cycle from germination to harvest sits between 70 and 85 days, which comes down to ten to twelve weeks. In that period you can count on a yield of 375 to 450 grams per square metre. The strain behaves calmly in both soil and hydro. She does not need complicated training, although light LST is possible as long as you keep an eye on light distribution. Keep humidity a little lower in flower to keep the dense buds dry.

Outdoors the plant grows to about 150 cm. Each plant yields 70 to 120 grams. She prefers a climate with long summers, so the cycle can finish fully before the days turn too short and too wet. Plant her in a sunny, sheltered spot. The autoflower trait means you do not have to wait for a particular point in the season to start flowering. In an average Dutch or Belgian summer you can put her in the ground in late spring or early summer. Make sure drainage is sufficient and use a pot or container that gives the roots room, because the plant stays medium-sized but does develop a sturdy structure.

The life cycle is short enough to consider a second round if you start early. Indoors you can keep the light schedule constant, for example 18/6 or 20/4. Outdoors she follows her own rhythm. Give her enough nitrogen in the vegetative phase and switch to a phosphorus- and potassium-richer schedule in flower. You are better off avoiding overfeeding, because autoflowers are less forgiving than photoperiod plants.

Effects, Flavour and Aroma

The effect is physically relaxing, sleepy and at the same time lightly stimulating. You first notice a mild lift, after which the body settles. The high suits the evening or a quiet moment. The 19 percent THC delivers a clear effect without the profile becoming overwhelming.

The flavour and aroma are built around blueberry and other fruit. Underneath sit spicy notes and a hint of pine. The buds smell sweet-fruity with a spicy undertone. When smoking or vaping, that combination of blueberry, fruit and pine stays recognisable. The terpenes give a round, not harsh smoke.

The purple colour that many plants develop comes from the anthocyanins in the Purple Urkle line. That colour has no influence on potency, but it does on the look of the harvested buds. After a proper dry and cure, the fruity aroma is retained.

Comparison with Similar Strains

The photoperiod version Granddaddy Purple from the same breeder has no ruderalis and needs a light-schedule switch to flower. Her cycle is longer and she often grows larger. The THC content there sits around 20 percent and the ratio is 70 percent indica and 30 percent sativa. Granddaddy Purple Auto is shorter in time and more compact, which makes her a better fit if you do not have a separate flowering room.

Purple Punch Auto shares the purple look and a similar indica-dominant profile. Her flowering is slightly shorter, 50 to 55 days, and indoor height usually stays between 60 and 100 cm. Indoor yield there sits around 350 to 400 grams per square metre. Granddaddy Purple Auto grows a bit taller and has a more pronounced blueberry-pine profile, while Purple Punch Auto sits more in the sweet, punch-like corner.

Northern Light Auto is a more classic indica auto with 80 percent indica and 20 percent ruderalis. Her THC stays lower, up to 14 percent, and flowering can already be done after 45 to 55 days. Indoor yield can come out higher. Granddaddy Purple Auto stands out through the higher THC content, the fruity blueberry flavour and the purple colour that Northern Light Auto shows less distinctly.

Frequently Asked Questions about Granddaddy Purple Auto

How long does the full cycle of Granddaddy Purple Auto take?

Harvest falls 70 to 85 days after germination. Flowering itself lasts 55 to 60 days. So you need roughly ten to twelve weeks from seed to dry buds. Indoors you can keep the schedule tight. Outdoors it depends a bit more on the start time and the weather. Plan your grow so the last weeks do not fall in a cold, wet period.

How tall does Granddaddy Purple Auto get indoors and outdoors?

Indoors she stays between 60 and 140 cm. Outdoors she reaches about 150 cm. That makes her suitable for tents of average height and for a balcony or garden without her towering over everything. In a small pot she stays more toward the bottom of that range. Give her more root space and she takes the extra centimetres.

What does Granddaddy Purple Auto taste like?

You mainly taste blueberry and other fruit, with spicy undertones and a hint of pine. The aroma is sweet-fruity and stays recognisable after curing. The smoke is not harsh. If you like purple, berry strains, you will recognise the profile at once. The spicy and pine-like layer keeps it from becoming too one-dimensionally sweet.

Is Granddaddy Purple Auto suitable for beginners?

Yes, the autoflower trait and the medium-sized growth make her straightforward. You do not have to switch the light schedule. She handles both soil and hydro. Do make sure you do not feed too heavily and that humidity in flower does not climb too high. A stable environment delivers the best structure. Extra training is not needed, but a light bend of the branches can improve light distribution.

What climate does Granddaddy Purple Auto need outdoors?

She does best with long summers. In a short or wet season she completes her full cycle less easily. Choose a sunny, sheltered spot and make sure drainage is good. In the Netherlands and Belgium you preferably plant her so that flowering falls in the warmer, drier weeks. A greenhouse or cover helps if late summer turns wet.

Why Order from Us

Your order to the Netherlands goes as a PostNL letterbox parcel for 4,40 euro. From 35 euro shipping is free. To Belgium we charge 8,50 euro, free from 50 euro. Germany costs 9,70 euro and is free from 75 euro. For other countries the rate is 12,50 euro, also free from 75 euro. All prices mentioned include VAT.

We ship in discreet, neutral packaging. Nothing on the outside refers to the contents. That way your parcel stays unobtrusive until it arrives in your letterbox or at your door.

The price of this product is 10,00 euro. You receive the seeds without extra promotions or inserts. The shipping costs and thresholds above apply as stated, depending on the country of destination.

Orders placed on working days before 18:00 go out the same day with PostNL. Shipping to abroad costs € 12,50 and is free from € 75,00.

Everything is packed plainly and discreetly: the outside does not show what is inside and carries no company name.

We ship to Belgium and Germany too. Seeds are sold as a collector's item — germinating is illegal in many countries, check the law where you live.