Mendocino x Purple Kush

Mendocino x Purple Kush Feminised Cannabis Seeds

Mendocino x Purple Kush is a feminised cannabis seed from Medical Seeds that produces four distinct phenotypes from a single packet — colours ranging from deep green to vivid purple, each with its own aroma profile. Released in early 2014, this cross between Mendocino Purple and Purple Kush picked up three awards before most growers had even finished their first run. She's a 60% indica / 40% sativa hybrid that reaches up to 3 metres outdoors and delivers around 600 grams per plant. Indoors, expect roughly 450 grams per square metre after just 8–9 weeks of flowering.

Mendocino x Purple Kush Genetics and Phenotypes

Medical Seeds crossed a female Mendocino Purple with a male Purple Kush — two strains already famous for their colour and resin production — and the offspring turned out to be genuinely unpredictable in the best way. You get four phenotypes from this cross, and each one looks and smells different enough that you'd swear they were separate strains growing side by side.

The green phenotypes lean towards the earthy, almost dank kush funk you'd expect from Purple Kush parentage. The more purple-coloured plants swing the other way — sweeter, closer to the candy-like aroma of Mendocino Purple. And then there are the in-between expressions. Three seeds in a pack means you could easily end up with two or three distinct phenotypes in a single grow.

The indica dominance (60/40 split) shows in the structure: broad leaves, sturdy branches, and a plant that bulks up rather than stretches. But that 40% sativa heritage gives her enough vigour to reach serious heights outdoors — up to 3 metres if she has the root space and sunlight.

Mendocino x Purple Kush Awards and Recognition

Three accolades in a single year for a brand-new strain is worth mentioning. Mendocino x Purple Kush collected these in 2014, the same year she was released:

• 2nd place — Concentrate category, Canafac-Acmefuer 2014
• 5th place — Indoor category, Copa THC Valencia 2014
• 2nd place — Concentrate category, Oil Hunters Cup 2014

Two of those three wins came in concentrate categories, which tells you something about the resin production on this plant. If you're growing specifically for extraction, that's a strong signal. The indoor placement at Copa THC Valencia shows she holds her own as flower too.

How to Grow Mendocino x Purple Kush Seeds

This strain is strong and robust — Medical Seeds' own words, and from what growers report, it checks out. She's not fussy, but she does have one clear sensitivity: overfeeding. Mendocino x Purple Kush reacts quickly to excess nutrients and will show signs of burn faster than most strains. Start conservative with your feeding schedule and increase gradually. If the leaf tips start yellowing or curling, back off immediately.

1. Germinate your feminised seeds using your preferred method — damp paper towel, jiffy pellets, or directly in soil. Keep temperatures between 20–25°C for best germination rates.
2. Transplant seedlings into their final containers once they've developed 2–3 sets of true leaves. Indoors, SOG (Sea of Green) is the recommended technique due to this strain's large stature and broad leaf structure.
3. Keep the vegetative phase short indoors — Medical Seeds recommends just 2 weeks before switching to a 12/12 light cycle. This prevents the plants from outgrowing your space.
4. During flowering (8–9 weeks), watch your nutrient levels carefully. This strain does not like over-fertilisation and will show signs quickly if you push too hard.
5. Outdoors, plant in spring and let her grow to full size. She can reach 2–3 metres by early October harvest time, producing up to 600 grams per plant with proper care.
6. Harvest when trichomes shift from clear to milky-white. The purple phenotypes are especially photogenic at this stage — worth the patience.

One thing to watch: because of the four phenotype variation, your plants won't all behave identically. Some may finish a few days earlier than others, and the feeding tolerance can vary between phenotypes. Growing three seeds at once means paying attention to each plant individually rather than treating the canopy as one uniform crop. It's a bit more hands-on than a stabilised single-phenotype strain, but the variety in your harvest jar makes up for it.

Mendocino x Purple Kush Indoor vs Outdoor Growing

Both environments work well, but the experience is quite different depending on which route you take.

Indoors, SOG is the way to go. The plant's natural size and broad leaves mean she'll fill out a space fast, and the short 2-week veg period keeps things moving. You're looking at seed to harvest in roughly 10–11 weeks total, which is quick for the yield you get.

Outdoors is where she really shows off. Three metres of purple-tinged cannabis plant producing 600 grams is a sight. The strain's robustness means she handles temperature swings and mild weather stress without drama — but if you're in a climate where autumn rains arrive before early October, consider whether you can protect the colas from mould at that size. That's the honest trade-off with any large outdoor plant harvesting in October.

Mendocino x Purple Kush Aroma and Appearance

This is where the four phenotypes make things genuinely fun. You're not just growing one strain — you're growing a spectrum. The green phenotypes carry a deep, earthy kush scent. Soil, wood, that classic heavy OG funk that sticks to your fingers after handling the buds. The purple phenotypes flip the script entirely: sweeter, almost floral, with the candy-like notes that Mendocino Purple is known for.

The colour variation is real and dramatic. We've seen photos from growers where the same batch produced plants ranging from standard green to a purple so deep it's almost black at the calyxes. The colour intensifies with cooler night temperatures during late flowering, so if you're growing indoors and want to push the purple expression, dropping your dark period temps to around 15–18°C in the final two weeks can help. It's not guaranteed — genetics decide the phenotype — but temperature is the environmental nudge that brings out the anthocyanins.

The leaf structure is broad and indica-typical, with thick fingers that catch light well in a canopy setup. Resin production is heavy across all phenotypes, which explains the concentrate competition wins.

Why Mendocino x Purple Kush Is Worth Growing

We've been selling cannabis seeds since the early days of the online smartshop, and the strains that stick around are the ones that deliver something you can't get from a dozen other packets on the shelf. Mendocino x Purple Kush does that through sheer variety. Three seeds, potentially three or four different expressions of the same genetics. That's not a flaw — it's the whole point.

The practical numbers are solid too. An 8–9 week indoor flowering time with 450 g/m² puts her in competitive territory with most commercial strains. Outdoors, 600 grams per plant at up to 3 metres is genuinely impressive for a strain that's also winning concentrate competitions. The short 2-week indoor veg period means faster turnaround if you're running multiple cycles.

The honest limitation? Phenotype variation means less uniformity. If you need every plant in your room to behave identically — same height, same stretch, same feeding tolerance — a more stabilised strain would be a safer bet. But if you enjoy the process of discovering what each seed becomes, and you want a harvest jar with genuine variety in aroma and appearance, this is one of the more rewarding grows we've come across from Medical Seeds.

Compared to growing straight Purple Kush, you get more vigour and height from the Mendocino Purple parentage. Compared to Mendocino Purple alone, you get the kush structure and resin production. The cross genuinely takes the best from both sides — the three awards in year one weren't a fluke.

Frequently Asked Questions

Last updated: April 2026