Photoperiod Seeds

What Are Photoperiod Seeds?

Photoperiod cannabis seeds are the gold standard for growers who want full control from start to finish. These aren’t the plug-and-play kind of seeds that flower on their own. Instead, they wait for you to flip the switch. Quite literally.

These plants rely on the light cycle to know when to start flowering. Keep them under 18 hours of light and 6 hours of darkness, and they’ll stay in veg, stacking leaves and roots. Flip them to 12 hours of light and 12 of darkness, and that’s the cue to bloom. That ability to control when your plants flower is exactly why photoperiod strains are still the top choice for indoor growers, outdoor cultivators with long seasons, and anyone who wants to train, top, and fine-tune their crop.

They take a little more patience than autos, sure. But in return, you get bigger yields, stronger aromas, deeper effects, and a wider toolkit of techniques to boost your results. If you want to shape your grow rather than sit back and watch, this is the kind of seed you want in your soil.

At WeedSeedsExpress, we stock a huge variety of photoperiod seeds. That includes legendary strains like Northern Lights and AK-47, flavour bombs like Banana Kush and Amnesia Haze, and breeder-ready regular seeds for those who like to experiment. Every pack comes from trusted genetics, tested for quality, and backed by our germination guarantee.

Why Grow Photoperiod Strains?

Photoperiod seeds give you the most important thing in cannabis growing: control. Unlike autoflowers that start blooming on their own schedule, photoperiod plants wait for the light change. This gives you complete freedom over how long you let them veg.

Want a small, discreet indoor plant? Veg it for a few weeks. Want a beast that fills a tent or dominates your back garden? Let it veg longer. More time in veg means more branches, more bud sites, and a much heavier final harvest.

They’re also ideal for training techniques. You can top them to promote multiple colas, use LST to shape them horizontally, or run a full SCROG setup for maximum efficiency. You simply don’t get that level of control with autos because their life cycle is fixed and fast.

And here’s the real kicker. With more time to grow, photoperiod strains often develop more complex terpene profiles and higher cannabinoid concentrations. This is why you’ll often find connoisseur growers leaning toward photos. If you’re chasing flavour, potency, or just want to push a plant to its full potential, photoperiod genetics are the way to get there.

Types of Photoperiod Seeds at WeedSeedsExpress

There are two main types of photoperiod seeds in our shop, and both serve different needs depending on your goals.

feminised Photoperiod Seeds

These are the go-to option for most growers. feminised seeds are bred to produce only female plants, which are the ones that grow buds. That means you don’t have to deal with removing males or worrying about accidental pollination. You get 100 percent usable plants.

Perfect for indoor setups, outdoor runs, and growers who want the most efficient use of space and time. You’ll find legendary photoperiod feminised strains in our catalogue, like Banana Kush, White Widow, Northern Lights, and Amnesia Haze.

Regular Photoperiod Seeds

Regular seeds are for breeders, purists, and growers who want full genetic diversity. These will give you both male and female plants, so they’re ideal if you’re making your own crosses or selecting phenotypes. They’re also the best option for cloning and maintaining your own unique line. A little more effort, but worth it if you’re in it for the long haul.

What Are the Most Popular Photoperiod Strains to Grow?

With over 200 strains in our photoperiod lineup, choosing can be the hard part. To help narrow it down, here are some of the most popular and trusted strains among our customers, whether you’re growing for flavour, potency, or big harvests.

Future #1 (feminised)

• THC: 37%
• Flowering Time: 56–63 days
• Yields: Up to 500–700g/m² indoors, 1000g/plant outdoors
• Grow Style: Indoor, outdoor, greenhouse
• Best For: Insane potency, heavy hitters, sativa fans

Future #1 is a full-power rocket. With THC levels pushing up to 37%, it’s easily one of the strongest strains ever bred. Expect dense, resinous buds, a fast-hitting high, and a euphoric rush that can turn into a full-body melt if you overdo it. Definitely one for the pros or anyone chasing knockout effects.

Fat Bastard (feminised)

• THC: 28%
• Flowering Time: 56–63 days
• Yields: Up to 600g/m² indoors, 700g/plant outdoors
• Grow Style: Indoor, outdoor
• Best For: Bulk harvests, deep body relaxation, hash making

Fat Bastard is exactly what the name promises: a chunky, heavy-yielding indica dominant monster. Thick buds, strong earthy flavours, and a stone that locks you deep into the couch. If you’re chasing weight and classic relaxing highs, this beast brings it home.

Godfather OG (feminised)

• THC: 34%
• Flowering Time: 56–63 days
• Yields: Up to 500–650g/m² indoors, 800g/plant outdoors
• Grow Style: Indoor, greenhouse, outdoor
• Best For: Power users, nighttime use, knockout relaxation

Godfather OG is legendary for a reason. This heavy-hitting indica hybrid hits hard and fast, dropping a full-body high with intense euphoria before mellowing into pure relaxation. Great for experienced smokers, stress relief, or just knocking out a long day in style.

C. Banana (feminised)

• THC: 34%
• Flowering Time: 56–70 days
• Yields: Up to 500g/m² indoors, 600g/plant outdoors
• Grow Style: Indoor, outdoor, greenhouse
• Best For: Tropical flavours, creative highs, giggles

C. Banana brings all the tropical goodness with sky-high THC levels. This hybrid leans into sweet, fruity flavours and delivers a euphoric, giggly high that’s perfect for social sessions or creative bursts. Easy to grow, great to smoke, and absolutely delicious.

Growing Tips for Photoperiod Strains

Photoperiod strains might need a bit more attention than autos, but once you’ve got the rhythm down, they’re incredibly rewarding. Think of them like a high-performance machine: give them the right fuel, light, and training, and they’ll absolutely deliver.

1. Nail the Light Schedule: Keep them on 18/6 during veg, then flip to 12/12 to trigger flowering. Indoor growers can use timers. Outdoor plants flower naturally when the days shorten.
2. Veg As Long As You Like: Short veg for smaller plants, long veg for heavy yields. The bigger the plant, the more resources it’ll need later.
3. Use Training Techniques: Topping, LST, and SCROG work best with photoperiods. Autos usually move too fast for these methods.
4. Watch the Clock on Flowering: Most photos need 8 to 11 weeks to flower. Sativas take longer, indicas finish quicker. Monitor trichomes for harvest timing.
5. Match Your Strain to Your Space: Some strains stretch hard when flowering. Pick shorter hybrids or plan for training if space is limited.
6. Don't Rush the Veg: Give your plant at least 4–6 weeks in veg for stronger structure and better yields. A little patience makes a big difference.

Why Buy Photoperiod Seeds from WeedSeedsExpress?

Because we’re growers too. We know what it’s like to waste time and money on bunk seeds and bad support. That’s why every photoperiod seed we sell is fresh, tested, and backed by a germination guarantee. No gimmicks. Just reliable genetics and real service.

You get fast, discreet shipping, bonus seeds in most packs. And if you ever need help picking a strain or figuring out a light schedule, our support team is here for you. No automated nonsense. Just people who care and know what they’re talking about.