Purple Monkey Auto (Exotic Seed)

Purple Monkey Auto Cannabis Seeds by Exotic Seed

Purple Monkey Auto is an autoflowering cannabis seed from Exotic Seed that crosses Blue Monkey with Black Lemon Auto to produce a compact, fast-finishing plant with striking purple and red colouring. With a seed-to-harvest time of roughly 10 weeks and yields of 400–450g/m², this is one of the most rewarding autoflowers we've come across for the space it takes up. The pack contains 3 feminised autoflowering seeds.

Why Purple Monkey Auto Seeds Deserve a Spot in Your Grow Room

Most autoflowers ask you to compromise somewhere — either the yield is disappointing, the flavour is flat, or the plant stretches into awkward shapes that waste light. Purple Monkey Auto sidesteps all three. Exotic Seed bred this one from Blue Monkey and Black Lemon Auto, and the result is a genuinely compact plant (around 1 metre tall) that still pushes out 400–450g/m² indoors. That's proper photoperiod territory from a seed that doesn't need a light schedule change.

The 10-week turnaround from seed to harvest means you can run multiple cycles per year without planning your calendar around it. And because it stays short, you can fit several plants under a single light panel in a small tent — an 80x80cm setup handles 4 of these comfortably. We've seen growers squeeze them into 60x60 tents too, though you'll want to keep on top of airflow if you go that tight.

The honest limitation? Like most autoflowers, you can't extend the vegetative phase to recover from early mistakes. If you overwater or burn the seedlings in week 2, you're eating into a fixed timeline. Get your soil and nutrients dialled in before you pop the seed, and Purple Monkey Auto will do the rest.

What Purple Monkey Auto Smells and Tastes Like

This is where Purple Monkey Auto genuinely stands out from the autoflower crowd. The aroma hits you with diesel first — heavy, fuel-forward, the kind that fills a room when you crack a jar. Then the lemon cuts through underneath, sharp and clean. It's not subtle. If you're growing without a carbon filter, your neighbours will have questions.

The flavour follows the same path but leans harder into citrus. Strong lemon up front, then a slightly chemical backnote that Exotic Seed describes as similar to detergent. That sounds odd on paper, but it works — think of it like a terpene-heavy Haze crossed with a fuel strain. Whether you smoke or vape, the complexity holds up. Compared to something like a standard Northern Lights Auto, which tends toward earthy sweetness, Purple Monkey Auto is far more pungent and layered.

Growing Purple Monkey Auto Seeds — What to Expect

Purple Monkey Auto thrives in both indoor and outdoor setups, which makes it a solid pick if you're not committed to one environment. Indoors, keep your light cycle at 18/6 or 20/4 from start to finish — no need to flip to 12/12. The plant stays around 1 metre, so headroom is rarely an issue even in smaller tents.

Outdoors, this strain handles cooler temperatures well, and the shorter stature means it won't tower above a fence line. The purple and red colouring intensifies as the flowers mature, especially if nighttime temperatures drop below 15°C in the final weeks. Give it decent soil, consistent watering, and moderate feeding, and you'll see those colours develop without any special treatment.

1. Germinate your Purple Monkey Auto seeds using the paper towel method or directly in a small pot of lightly moistened soil. Taproots typically appear within 24–72 hours.
2. Transplant seedlings into their final container early — 11–15 litre pots work well. Autoflowers don't like root disturbance, so avoid multiple transplants.
3. Set your indoor lights to 18/6 or 20/4 and maintain throughout the full cycle. No light schedule change needed.
4. Feed lightly during the first 2–3 weeks, then increase nutrients gradually as the plant enters pre-flower around week 3–4.
5. Watch for the purple and red colouring to develop in the final 2–3 weeks. This is your signal that harvest is approaching.
6. Harvest around week 10 from seed. Check trichomes with a jeweller's loupe — mostly cloudy with a few amber heads is the sweet spot.
7. Dry in a dark, ventilated space at 18–20°C and 55–60% humidity for 7–10 days, then cure in airtight jars for at least 2 weeks.

Purple Monkey Auto Seed Specifications

Purple Monkey Auto vs Other Compact Autoflowers

Purple Monkey Auto pulls ahead on yield — 400–450g/m² is strong for an autoflower at this height. If you're after sweeter, fruitier flavours, a Blueberry Auto might suit you better. But for that diesel-lemon punch combined with bag appeal from the purple colouring, Purple Monkey Auto is the one we'd pick.