
Denver Maple Feminised
Denver Maple Feminised — premium indica cannabis seeds suited to Irish growing conditions. 18% THC with relaxed, sleepy, happy effects. Discreet delivery across Ireland, with sourced grow figures on every strain page.
Royal King Genetics — first-party test batch
Figures below are from our internal seed-lot QC and verified Irish grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-13 on 325 seeds at 20-23°C.
About Denver Maple Feminised
Growing Denver Maple in Ireland is a question of rain and wind rather than of heat or latitude. The whole island runs temperate oceanic, so nowhere is meaningfully warmer than anywhere else — what changes as you move west is how many wet days land on the plant while it is in flower. Outdoors that makes bud structure and the 55-65 days of bloom the two things worth reading before anything else, because a dense cola and a wet October are a poor combination. Under a tunnel or under lights the argument disappears: Denver Maple is then judged on its genetics and on nothing else.
Growing it on this island
The pressures here are consistent and they are nearly all about water. Botrytis in dense flower from September onwards is the first, and it is answered with open structure, moving air and a roof — not with anything sprayed on afterwards. Indoors, spider mite and thrips arrive the way they always do, and humidity above 60% in late bloom is what turns a manageable problem into a lost room. Outdoors in a wet spring the slugs do more damage to seedlings than every insect on the plot, and they do it in a single night.
A polytunnel changes the arithmetic on Denver Maple more than any other single purchase. It adds a fortnight at both ends of the season, keeps the rain off the flower during the weeks that matter, and turns a marginal outdoor crop into a reliable one.
What Denver Maple is like in practice
The catalogue lists relaxed, sleepy, happy, and that matches what growers here report back. At 18% THC this indica sits where the dose is the whole question. One bowl through a vaporiser at 185°C leaves the head working and the body easy, which is what most people are after on a weeknight. More than that moves it firmly towards sedation. The Linalool and Myrcene together leave a finish that keeps shifting across a session.
Suited to evenings in, recovery after work, and the hour before sleep.
Terpene breakdown
Primary: Linalool · Secondary: Myrcene · Tertiary: Caryophyllene. The three shift relative to each other across the cure. Straight off the dry the linalool dominates; three or four weeks sealed in glass at 16-18°C and the caryophyllene underneath comes up to meet it. Vaporising between 180°C and 195°C catches the widest span, because heat takes the lighter caryophyllene molecules first.
Who it suits
Denver Maple suits growers at any stage, a first outdoor season included. It tolerates the ordinary early mistakes — watering by habit rather than by weight, a feed that drifts, a tunnel that runs cold overnight — without the crop coming apart. Photoperiod genetics leave plant size and harvest date under your control — veg longer for a bigger plant, or flip early when the ceiling is low. A bloom of 55-65 days fits inside the season here for outdoor growers, with a tunnel making it comfortable rather than tight.
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Feminised Premium
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Denver Maple Feminised — Breeder Information
Royal King GeneticsBred and stabilised in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.
Denver Maple sits in advanced filial refinement (F3). Trait expression is consistent across the pack with the minor pheno-to-pheno variation that is typical at this stage. Active selection continues toward F4.
Cull off-type phenos in Denver Maple at F3 to lock the cross profile.
Chosen for purple/dark expression where it shows, dense bud structure and a true indica relaxation profile.
Royal King Genetics breeding facility — pollen from internally selected sibling males of the recurrent parent.