Purple Kush
Cannabis seeds
by Kannabia Seeds
Purple Kush Cannabis Seeds by Kannabia
Purple Kush is a feminised cannabis seed from Kannabia that crosses Black Domina with Purple Afghani to produce a 70% Indica dominant hybrid draped in deep purple tones. She's easy to grow, finishes flowering in 55-60 days, and delivers dense, resin-caked buds with a sweet herbal aroma. If you want a visually stunning Indica that doesn't demand expert-level growing skills, this is where you start.
What Makes Purple Kush Seeds Stand Out
Kannabia's Purple Kush seeds grow into plants that genuinely look different from everything else in your tent. We're not talking about a faint lilac tinge that you have to squint at under the right light. These plants shift into rich, saturated purples as flowering progresses, contrasting against deep green fan leaves. It's the kind of plant you photograph before you harvest.
But a pretty plant that smokes like cardboard isn't worth your time. Purple Kush backs up the looks with substance. The buds grow dense and heavy, coated in a thick layer of trichomes that makes them sticky to the touch. When you break one open, you get a sweet, herbal scent with enough complexity to keep your nose interested. The smoke carries those same sweet herbal notes through — pleasant and smooth rather than harsh or one-dimensional.
The honest limitation? She's not a record-breaking THC monster. Purple Kush delivers a classic Indica effect — deeply relaxing and calming without the kind of intensity that pins you to the sofa for six hours. For some growers chasing the absolute highest THC numbers, that might matter. For everyone else who wants an enjoyable, well-rounded smoke from a beautiful plant, it's actually a strength. Compared to something like Kannabia's own Amnesia or a heavy Kush hybrid, Purple Kush is the one you reach for when you want to unwind without writing off your entire evening.
Growing Purple Kush Seeds — Indoor and Outdoor
Purple Kush is genuinely forgiving to grow, which makes her a solid pick if you're on your second or third run and want something that rewards you without punishing every small mistake. Kannabia specifically bred this cross to be low-maintenance, and it shows.
The single most common mistake we see with Purple Kush? Overfeeding. She prefers nutrients on the lighter side. If you're used to pushing heavy feed schedules with other strains, dial it back by about 25-30%. Basic nutrients and consistent watering are all she asks for. Overfeed her and you'll see nutrient burn on those gorgeous purple leaves — and that's a shame nobody needs.
| Specification | Detail |
|---|---|
| Seed Bank | Kannabia |
| Genetics | Black Domina x Purple Afghani |
| Type | 70% Indica / 30% Sativa |
| Seed Type | Feminised |
| Flowering Time | 55-60 days |
| Indoor Yield | Up to 500g/m² |
| Outdoor Yield | Up to 800g per plant |
| Outdoor Height | Up to 200cm |
| Indoor Height | Manageable (suitable for tents) |
| Pack Size | 5 seeds |
| SKU | CSKA0054 |
Indoor vs Outdoor — Purple Kush Yield and Height
Indoors, Purple Kush stays at a manageable height that won't outgrow a standard grow tent. She'll produce up to 500g/m² in a 55-60 day flowering window, which is competitive for an Indica of this type. Run her under a decent LED in an 80x80 or 100x100 tent and she'll fill the canopy nicely.
Outdoors is where she really stretches. Plants can reach up to 200cm and produce up to 800g per plant under optimal conditions. That's a serious harvest from a single plant. She's suited to climates with a warm, dry autumn — you don't want heavy rain sitting on those dense buds during the final weeks of flowering, as density plus moisture is a recipe for mould. If your outdoor season ends wet, consider finishing under cover or bringing pots inside for the last fortnight.
| Environment | Yield | Height | Notes |
|---|---|---|---|
| Indoor | Up to 500g/m² | Manageable | Light feeding, 55-60 day flower |
| Outdoor | Up to 800g/plant | Up to 200cm | Watch humidity in late flower |
Purple Kush Aroma, Flavour, and Effect
Crack open a cured bud of Purple Kush and the first thing that hits you is a sweet, herbal scent — not overpowering, but distinct. There's a pleasant depth to it that carries through when smoked. The flavour profile leans sweet with herbal undertones, the kind of smoke that doesn't tire your palate after a few sessions.
The effect is classic Indica territory. Purple Kush is high in THC and delivers a powerful body-focused experience that's deeply relaxing and calming. According to research published in WIRED referencing NCBI data, cannabis strains with higher THC ratios may offer moderate amounts of physical relief (NCBI Research News). What we can say from a grower's perspective is that Purple Kush hits with a smooth, settling quality rather than an abrupt heaviness. You feel the tension leave your shoulders before you realise it's happening.
It's worth noting that according to a study on natural medical cannabis flower published in PMC, users reported at least one side effect in 57% of sessions, with dry mouth being among the most common (PMC6164964). Keep water nearby. That's good advice for any strain, but particularly relevant for Indicas you'll be enjoying while settled in for the evening.
How to Grow Purple Kush Seeds
- Germinate your Purple Kush seeds using the paper towel method or directly in a starter plug. Keep temperatures around 22-25°C and expect taproots within 48-72 hours.
- Transplant seedlings into their final pots once they've developed 2-3 sets of true leaves. A 10-15 litre pot works well for indoor grows; outdoor plants benefit from 20 litres or more.
- Keep nutrients light throughout the vegetative stage. Purple Kush doesn't need heavy feeding — start at about 50-60% of the manufacturer's recommended dose and only increase if the plant shows signs of deficiency.
- Switch to a 12/12 light cycle indoors to trigger flowering. You should see the first pistils within 7-10 days of the switch.
- Watch the colour change during weeks 3-5 of flowering. The characteristic purple tones develop as night temperatures drop slightly — a 5-8°C difference between day and night temperatures can intensify the colouring.
- Reduce feeding further in the final 2 weeks and flush with plain water for the last 7-10 days before harvest to improve flavour.
- Harvest when 70-80% of trichomes have turned milky with a few amber ones appearing. This typically falls within the 55-60 day flowering window Kannabia specifies.
- Dry in a dark, ventilated space at 18-21°C and 55-60% humidity for 7-10 days, then cure in glass jars for at least 2 weeks. The herbal sweetness really develops during a proper cure.
Growing Purple Kush indoors? Pair these seeds with a complete grow tent kit — tent, lighting, and ventilation sorted in one go. A carbon filter is non-negotiable once those resinous buds start filling out around week 4 of flowering. For nutrients, a basic organic feeding line kept at half-strength is all Purple Kush needs to thrive.
Why Purple Kush Deserves a Spot in Your Grow
We've been selling cannabis seeds since 1999, and the strains that keep coming back year after year share three things: they're forgiving to grow, they look good doing it, and the end product is genuinely enjoyable. Purple Kush ticks all three.
The real value here is the combination of low effort and high reward. You don't need to be a master grower to get impressive results. Feed lightly, water consistently, give her adequate light, and she does the rest. The 55-60 day flowering time means you're not waiting around for months, and the yields — up to 500g/m² indoors — are generous for a plant that asks so little of you.
If you're choosing between Purple Kush and another Indica in the Kannabia range, consider what you're after. Purple Kush is the all-rounder: beautiful plant, pleasant smoke, easy grow. She's not trying to be the most potent strain in the catalogue — she's trying to be the most satisfying from seed to smoke. And she succeeds.
Frequently Asked Questions
How long does Purple Kush take to flower?
Purple Kush finishes flowering in 55-60 days from the switch to 12/12. That's on the shorter side for an Indica, making her a good choice if you want a quick turnaround between harvests.
Is Purple Kush hard to grow?
No. She's genuinely easy to grow. The main thing to watch is overfeeding — keep nutrients at about half the manufacturer's recommended dose. Beyond that, basic watering and decent light are all she needs indoors or outdoors.
Why do Purple Kush plants turn purple?
The purple colouring comes from anthocyanins in the genetics inherited from the Purple Afghani parent. Cooler night temperatures during flowering — a 5-8°C drop from daytime — help intensify the colour, but she'll show purple tones regardless.
What yield can I expect from Purple Kush seeds?
Indoors, expect up to 500g/m². Outdoors in optimal conditions, individual plants can produce up to 800g. Actual yields depend on your setup, light quality, and how well you manage feeding during flower.
What does Purple Kush smell and taste like?
Sweet and herbal. The aroma is pleasant without being overpowering — think dried herbs with a sugary undertone. The flavour carries through when smoked, smooth and easy on the palate. A proper 2-week cure in jars brings out the best of it.
Does Purple Kush have side effects?
According to research published in PMC, users of natural cannabis flower report side effects such as dry mouth in a majority of sessions (PMC6164964). Keep hydrated. As with any high-THC strain, start conservatively if you're unfamiliar with strong Indicas.
How tall does Purple Kush grow indoors?
She stays at a manageable height indoors — well suited to standard grow tents. Outdoors she can reach up to 200cm, but indoor growers won't have height issues unless they're working with an unusually small space.
Last updated: April 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.