How to Grow Irish Cream
Irish Cream is a heavily indica feminized strain prized for its smooth, creamy vanilla flavour and potent, full-bodied effect. It pairs a strong 24–28% THC with a floral, nutty, vanilla flavour and a euphoric, powerful, relaxed high, on a sturdy, resinous plant that stays easy to manage.
Built from a Mighty Irish Hope x Mighty Irish Hope cross, this is a 90% indica, 10% sativa strain that stabilises a deeply relaxing, dessert-like character. The result is a flavourful, high-THC plant with a soothing body effect and just a touch of cerebral lift.
Recommended Strains
Irish Cream
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THC | 24% - 28% (High) |
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Type | Feminized |
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Yield | Medium |
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Phenotype | 90% Indica / 10% Sativa |
Ice Cream Cake Auto
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THC | 19% - 20% (Medium) |
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Type | Autoflowering |
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Yield | High |
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Phenotype | 75% Indica / 25% Sativa |
Because it is potent, flavourful and still easy to grow, Irish Cream is a rewarding pick for indica lovers. You can see the full genetics and buy Irish Cream feminized seeds on the strain page, and browse more of our feminized range alongside it.
Strain Profile at a Glance
| THC | 24–28% (high) |
|---|---|
| CBD | 0.2% |
| Lineage | Mighty Irish Hope x Mighty Irish Hope |
| Type | Feminized |
| Genetics | 90% Indica / 10% Sativa |
| Climate | Tropical |
| Flowering time | 8–10 weeks |
| Harvest | October |
| Height | 4.92 ft / 1.5 m |
| Yield | Medium |
| Yield indoor | 1.31–1.47 oz/ft² (400–450 g/m²) |
| Yield outdoor | 15.87–19.4 oz/plant (450–550 g/plant) |
| Grow difficulty | Beginner-friendly |
| Flavors | Floral, Nutty, Vanilla |
| Effects | Euphoric, Powerful, Relaxed |
Promos & Deals
Climate and Where to Grow It
Irish Cream prefers a warm, tropical-style climate with plenty of light and consistent heat. It is a sturdy, forgiving plant, so it handles both indoor tents and warm outdoor spots well, staying compact at around 1.5 m.
Outdoors it finishes around October and a single plant can bring in 450–550 g in a good spot, while indoors it produces a solid 400–450 g/m². Because tropical warmth usually comes with humidity, keep the moisture in check and the air moving as the dense, resinous indica buds fill in.
Indoors, aim for daytime temperatures around 68–82°F (20–28°C) and trim the humidity down as the buds swell to protect that creamy resin.
Growing Feminized Photoperiod Seeds
As a feminized strain, every seed grows into a flowering female, so there is no need to sex the plants or remove males. That keeps the grow simple and means no wasted time or space on plants you would only cull.
Being a photoperiod plant, Irish Cream flowers on a light change rather than on age. Grow it under a long day (around 18 hours of light) through the vegetative stage, then switch to a 12/12 cycle to trigger flowering. A longer veg builds a bigger frame and a bigger harvest, while a shorter veg keeps the plant compact.
Feeding Schedule (EC Guide)
Irish Cream is a steady, moderate feeder, so there is no need to push nutrients hard. Start low, build up gently as the plant asks, and ease off for the final flush so the creamy, vanilla flavour stays clean.
| Stage | EC (mS/cm) | Notes |
|---|---|---|
| Seedling | 0.4–0.6 | Very light feed, focus on healthy root growth |
| Vegetative growth | 0.8–1.2 | Build the frame, raise nitrogen gradually |
| Early flower | 1.2–1.4 | Shift toward bloom nutrients (P and K) |
| Full flower | 1.4–1.6 | Peak bloom feed while the buds swell |
| Flush | 0.0–0.4 | Plain water for the final 1–2 weeks |
Flowering and Harvest
Once you flip to 12/12, bloom runs about 8–10 weeks. The strong indica dominance shows in the structure: compact spacing, dense, chunky buds and a decisive bud set rather than long, stretchy branches, which suits its tidy frame.
Keep the canopy open so light reaches the lower bud sites and the resin builds evenly. Harvest when most trichomes have turned cloudy with a few amber heads for the fullest, most relaxing expression, and run a short plain-water flush in the last week or two before you cut.
Drying and Curing
Dry whole plants or branches in a dark room at around 60°F (15–18°C) and 55–60% humidity for 7–14 days, until the thin stems snap rather than bend. A slow, even dry stops the dense buds staying damp in the middle while the outside dries, which protects the delicate creamy aroma.
Then cure the trimmed buds in sealed jars, burping them daily for the first week and letting them settle for three to four weeks. A proper cure brings the smooth vanilla, nutty and floral notes forward and softens the smoke, which is exactly what this dessert-flavoured indica deserves.
What to Do With Your Trim
Don’t bin the sugar leaves you remove while manicuring. Irish Cream is a frosty, high-THC plant, so the trim is excellent for dry sift, bubble hash or rosin, giving you a bonus run of potent concentrate from material most growers throw away.
Flavor and Terpenes
Irish Cream has a smooth, dessert-like flavour of vanilla, nuttiness and soft floral notes, a creamy, moreish profile that sets it apart from sharper or fruitier strains. It is gentle and rounded rather than loud or citrus-forward.
Three terpenes shape it. Linalool drives the soft, floral, almost lavender note; myrcene anchors a smooth, earthy-sweet base that underpins the creamy character; and caryophyllene adds a gentle peppery warmth for contrast. The vanilla and nutty notes are a signature of the strain itself, carried on that soft, floral-earthy backbone.
Effects and Best Use
With its 90% indica base, Irish Cream is reported as euphoric, powerful and relaxed. It is a full-bodied, settling profile with a pleasant mood lift, best kept for the evening or a quiet day off rather than a busy, active schedule.
At a strong 24–28% THC it is potent, so a little goes a long way, especially for less experienced users. That powerful, relaxing effect, paired with the smooth, creamy vanilla flavour and the easy, forgiving grow, makes it a genuinely rewarding choice for anyone who loves a flavourful, heavy indica and wants real potency without a difficult plant to manage.
Common Problems and Pro Tips
Irish Cream is a forgiving grow, but it is a potent, near-pure indica with a tropical streak, so humidity control and cure come first.
- Watch the humidity: as a 90% indica with a tropical preference its buds are dense and trap moisture, so keep humidity down and run a fan to prevent bud rot.
- Respect the potency: it runs 24 to 28% THC, so harvest on your preferred trichome reading and label the jar clearly if others will share the stash.
- Open up the canopy: it grows compact and bushy, so defoliate lightly to get light and air to the lower buds and keep ripening even.
Expert tip: the smooth vanilla, nutty and floral flavour is delicate. Dry slowly in a cool, dark space and cure in jars so that dessert-like character holds up rather than fading after harvest.
Frequently Asked Questions
Is Irish Cream indica or sativa?
It is heavily indica-dominant, at 90% indica and 10% sativa, which gives it a compact structure and a powerful, relaxing, body-leaning effect. That near-pure indica build also means dense buds that trap moisture, so keep humidity down and run a fan through the canopy as the plant flowers.
How long does it take to flower?
About 8 to 10 weeks once you switch to a 12/12 light cycle, with outdoor plants finishing around October. It leans to a tropical climate and its buds are dense, so keep humidity down and air moving through that window, and check trichomes toward the end for your preferred ripeness.
Do I need to sex the plants?
No. These are feminized seeds, so every plant grows into a flowering female. There is no need to identify or remove males, which keeps the grow simple and makes better use of your space, since every seed you plant turns into a productive plant rather than a male you would have to cull.
Is Irish Cream strong?
Yes. It is a high-THC strain at 24 to 28%, so it is potent. Newer users should start with a small amount and build up slowly. For growers, harvest on your preferred trichome reading and label the jar clearly if others will share the stash, since the effect is powerful and body-heavy.
What does Irish Cream taste like?
Expect a smooth, dessert-like mix of vanilla, nuttiness and soft floral notes, driven by its linalool, myrcene and caryophyllene terpenes. Those delicate terpenes fade with heat, so dry slowly in a cool, dark space and cure in jars to keep that creamy, dessert-like character after harvest.
How much does it yield?
It is a medium producer: 1.31 to 1.47 oz/ft² (400 to 450 g/m²) indoors, and 15.87 to 19.4 oz (450 to 550 g) per plant outdoors in a good season. Keeping the dense canopy open and humidity down helps this potent indica finish its buds clean and heavy at harvest.
