G13 x Skunk by Mr. Nice

G13 x Skunk seeds: the Mr. Nice classic that keeps G13 genetics alive

G13 is one of the most mythologised plants in cannabis, and Mr. Nice admits as much on its page: many colourful stories surround its origin. Before the female clone (an exact copy of a plant, taken from a cutting) of G13 lost its vigour, the breeder crossed it with several stable hybrids to preserve its genetics and let growers keep exploring them. G13 x Skunk is the version that pairs it with the Mr. Nice Skunk line. The family is listed as Afghani/Skunk × Skunk#1, it was bred by Nevil and Shantibaba, and it belongs to The Naturals, the breeder's old-school genetics collection. At oaseeds we like it because it is an affordable way to have G13 at home, in sturdy and productive F1 seeds (the first generation of a cross).

What G13 x Skunk inherits from its parents

According to Mr. Nice, the origins of G13 point to Afghan ancestry, which is why this plant is mostly indica (plants from mountain regions, short, broad-leaved and quick to flower). The Skunk line adds vigour and stability to the cross. G13 passes on two traits you can see at a glance: leaves with strongly serrated edges and an unusually healthy, almost glossy green throughout growth.

What the breeder highlights most is the flower: the buds (the flowers of the female plant, the part you harvest) come in very dense and tight. That is a plus at harvest time, and also the reason to watch humidity late in the cycle, as you will see below. As these are regular seeds, you get males and females; only females produce buds, and the males are useful if you want to make your own crosses or pick a mother plant for cuttings.

How to grow G13 x Skunk indoors and outdoors

Mr. Nice recommends it for every level, from first-time growers to advanced cultivators. Being mostly indica, it barely stretches during flowering (the phase when the plant stops growing and builds its buds), so it is easy to manage indoors. The breeder sees it as a good fit for SOG (sea of green: many small plants packed together and flipped to flower early), and it works in organic soil as well as in hydro.

Indoors, the expected yield is 500–650 g/m², depending on your growing style and the plant you select. Flowering takes 7 to 9 weeks depending on the phenotype (each of the variations that can come out of the same seeds), and most plants finish around week 7. In a greenhouse, the breeder talks about roughly 500 g per plant. Outdoors in the northern hemisphere it is harvested in September; in the southern hemisphere, from late March to April.

The key tip is to watch out for mould at the end. Its buds are so dense that, if humidity is moderate to high in the final weeks, they can rot from the inside. Ventilate well, keep humidity in check and inspect the fattest flowers. For the same reason, Mr. Nice warns that outdoor results depend heavily on the climate.

G13 x Skunk characteristics

Frequently asked questions about G13 x Skunk

Is G13 x Skunk indica or sativa?

It is mostly indica. Mr. Nice explains that G13 seems to have Afghan ancestry, and the Skunk line completes the cross. That is why it stretches little and forms dense, compact buds.

How long does G13 x Skunk take to flower?

Between 7 and 9 weeks, depending on the phenotype. Most plants finish around week 7 and a few need a little longer, so check each plant before you chop.

How much does G13 x Skunk yield?

Indoors, 500 to 650 g/m² according to the breeder; in a greenhouse, around 500 g per plant. Outdoors the figure depends mostly on the climate and humidity where you live.

Is it good for beginners?

Yes. Mr. Nice recommends it for everyone from inexperienced growers to the most advanced. The only thing that needs attention is humidity at the end of flowering, because of the mould risk in its dense buds.