Autoflower Seeds

Why autoflowers suit Thailand

An autoflowering plant starts to flower after a set number of weeks, regardless of how much light it gets. A photoperiod plant waits for the nights to get longer. That difference matters more in Thailand than it does in Europe, and it is the single best reason to grow autos here.

Thailand sits between roughly 6 and 20 degrees north. Day length barely moves across the year — Bangkok gets about thirteen and a half hours at the summer solstice and eleven and a half at the winter one. A photoperiod plant put outside will often start flowering almost immediately, because the nights are already long enough, and it flowers as a small plant with a small yield. An autoflower does not care. It runs its own clock and finishes on schedule.

Dutch Passion was one of the first seed banks to take autoflowering genetics seriously, back when the category had a deserved reputation for low potency and disappointing harvests. The six autos in this catalogue are the result of that work.

The six strains

• Auto Cinderella Jack — extremely high THC, ten to eleven weeks from seed, XL yield. The strongest auto in the catalogue.
• Auto Critical Orange Punch — very high THC, ten weeks, XXL yield. The fastest of the group and the heaviest yielder.
• Auto Mimosa Punch — very high THC, ten to twelve weeks, L yield. Smaller plant, strong terpene profile.
• Auto Ultimate — very high THC, twelve to fifteen weeks, XXL yield. The longest runner here; give it the time it asks for.
• CBD Auto Blackberry Kush — CBD-rich with low THC, thirteen weeks, XL yield, indica structure.
• CBD Auto Charlotte’s Angel — CBD-rich with low THC, thirteen weeks, L yield, sativa structure.

Practical notes

Autoflowers do not respond well to heavy training or transplanting, because they have no vegetative period to recover in. Start them in the pot they will finish in. A root-bound auto stays small permanently — there is no way to make up the time later.

Indoors they are usually run on an 18/6 or 20/4 light schedule from start to finish, which removes the light-schedule switch entirely. Outdoors in Thailand, the useful trick is that you can time a run to finish before the monsoon rather than planting to a season.

Feeding is the other difference. An auto’s whole life is ten to thirteen weeks, so there is no long vegetative stretch in which to correct a deficiency — start light and build up rather than trying to rescue a hungry plant in week eight.