Cannabis Seeds: Types, Germination and Storage

Every cannabis plant begins as a seed, and the seed decides more than most people realise: the sex of the plant, how it responds to light, how large it grows, and the balance of cannabinoids and terpenes it can develop. Choosing well at this stage saves months of wasted effort later. The market has expanded enormously, and https://budweedseeds.com now carries 400 strains from breeders around the world. This guide covers the main seed types, how to read a strain description, what separates a good seed from a poor one, and how to store and start them correctly.

One Seed, One Genetic Lottery Ticket

A cannabis seed is a tiny, hard-shelled embryo wrapped in a protective coat. Mature seeds are typically brown, grey or mottled, solid to the touch and slightly glossy. Inside sits everything the plant needs to start: a root tip, two cotyledon leaves and a store of energy to power the first days of growth.

Genetically, each seed is a one-off combination of its two parents, and that is why two seeds from the same pack can turn out noticeably unalike. Breeders reduce that variation by stabilising a line over many generations, but some spread is normal in any seed-grown crop. Clones are the only way to get exact copies; seeds exchange that certainty for vigour, a taproot and the chance of a standout plant.

Three Seed Types, Three Different Grows

Nearly every seed on sale belongs to one of three categories, and the choice between them is the first decision a buyer makes.

  • Autoflowering seeds carry ruderalis genetics that cause the plant to bloom on age rather than on light cycle. They are more compact, faster and more forgiving of imperfect conditions, usually at the cost of yield and potency.
  • Feminized seeds are bred to produce female plants very nearly every time. For anyone growing for flower rather than for breeding, they eliminate the guesswork and the wasted space of male plants.
  • Regular seeds give male and female plants in roughly equal numbers. They are preferred by breeders and by growers who want to produce their own seeds, but they require identifying and removing males before they pollinate the females.

Feminized and autoflowering are not opposites: most autoflowering seeds sold today are also feminized, and the description normally says so. Regular autoflowering seeds exist but are rare.

Males: Asset or Liability?

For the bulk of buyers the answer is feminized. If the aim is flower, every male plant is room, light and weeks spent on something that will be thrown away, and a single missed male can seed an entire room. Feminized seeds sidestep that issue entirely.

Regular seeds earn their place in a few situations. Breeders need males for pollen. Growers who want to hunt for a mother plant from a large population frequently prefer the broader genetic spread of regular stock. And some traditional lines are only sold in regular form. Outside those cases, paying for seeds that are half male is difficult to defend.

Photoperiod Control vs. Autoflower Speed

Photoperiod plants stay in vegetative growth as long as they get long days and switch to flowering when the light drops to around twelve hours. That hands the grower control: vegetate for two weeks or two months, train the plant, then trigger flowering when it fits the space.

Autoflowers disregard the light schedule and flower on a timer set by genetics, typically a few weeks after sprouting. The whole run from seed to harvest is much shorter, the plants stay small, and they can be run under continuous light from start to finish. The downside is that mistakes cannot be corrected by extending veg: a stunted autoflower remains stunted. Beginners, outdoor growers and anyone with limited height tend to do well with autos; growers chasing maximum yield from a given footprint usually prefer photoperiod stock.

Numbers on the Pack, Explained

A seed listing packs a lot of information into a few lines, and much of it is more informative than the strain name.

  • Flowering time. For photoperiod strains this is measured from the light flip; for autos it is usually given as total time from seed. Check which convention the breeder follows.
  • Lineage. The parent strains tell you what to expect in smell, structure and growth habit far better than any marketing text.
  • Sativa, indica or hybrid. These days almost everything is a hybrid; the percentages hint at growth habit (height, internode spacing, flowering time) more than at effect.
  • Yield estimates. Given per square metre indoors or per plant outdoors, and strongly reliant on the grower. Use them to compare strains from the same breeder, not across breeders.

Telling Live Seeds From Dead Ones

Appearance is a rough guide to viability, not a test, but a few signs are reliable.

  • Float test. Dropping seeds in water and discarding floaters is popular but crude: healthy seeds often float until the shell takes on water.
  • Shell. A firm shell that does not give under light finger pressure is a healthy sign; seeds that collapse easily are non-viable.
  • Size. Larger is not better; seed size varies by strain, and some top genetics make small seeds.
  • Colour. Brown, tan, grey or striped seeds are usually mature. Pale green or white seeds were picked too early and rarely sprout.
  • Surface. A slight waxy sheen is normal. Cracks, dents or obvious mould rule out a seed.

Long-Term Seed Storage

Cannabis seeds stay viable for years if they are kept properly and for months if they are not. The threats are warmth, light, moisture and change.

  • Keep them still. Moving seeds between warm and cold again and again does more harm than either temperature on its own; take out the container as seldom as possible.
  • Keep them dry. A airtight container with a desiccant packet prevents the humidity changes that trigger premature germination or mould.
  • Keep them dark. Light breaks down the embryo over time, so an light-proof container is better than a clear one.
  • Keep them cool. A constant temperature in the fridge range slows the seed’s metabolism without damaging it; the freezer is dangerous unless the seeds are bone dry.

Cracking the Shell

Each grower has a preferred method, but the requirements are the same whichever you choose: moisture, warmth, darkness and oxygen.

  1. Soak the seeds in room-temperature water for up to a day to soften the shell. Longer and they can drown.
  2. Move them to a damp paper towel inside a closed container, or directly into a small pot of light, damp medium. Keep the temperature comfortably warm.
  3. Wait. Most seeds produce a taproot inside two to five days; some take a week or more.
  4. Once the taproot reaches about a centimetre long, plant it root-down, just below the surface, and provide gentle light as soon as the seedling breaks the surface.

Handle sprouted seeds as little as possible; the taproot breaks easily and a damaged one frequently stops the seedling for good.

Reputable Source, Reliable Sprouts

Seeds are only as good as the supplier, and the difference between a serious seed bank and a middleman of uncertain stock shows up in germination rates, not on the website.

  • Original packaging. Seeds should arrive in the breeder’s original packs, not loose in a plain bag.
  • Storage on their end. Ask how stock is stored. Seeds sitting in a warm warehouse for a year drop viability before they reach you.
  • Clear policies. Shipping regions, discretion, and what the seller does when seeds fail to sprout should all be stated in plain language.
  • Breeder transparency. A trustworthy seller lists the breeder for every strain. Bud Weed Seeds carries lines from Barney’s Farm, Dutch Passion and Royal Queen Seeds, among others, with the breeder named on each product page.

From Checkout to Letterbox

Bud Weed Seeds ships to the EU, the UK and Canada. Orders are dispatched in discreet packaging with no reference to the contents on the label.

Seeds come with a germination guarantee: if a seed fails to sprout within 14 days of arrival when started by the recommended method, Bud Weed Seeds replaces it. The claim requires the order number and, in most cases, a photo.

Legal Grey Zones

The law on cannabis seeds is separate from the law on cannabis itself, and it varies sharply by country. In many European countries seeds are traded legally as collectors’ items or for agricultural purposes, while germinating them stays an offence. In other places both buying and growing are permitted under licence or within personal limits, and in some countries possession of seeds alone is banned.

Bud Weed Seeds does not send orders to the United States, where import of cannabis seeds is not permitted. It is the buyer’s duty to know the rules in their own country before ordering, and nothing on this page should be taken as legal advice.

Quick Answers

How long do cannabis seeds last?

Kept cool, dark and dry, the majority of seeds germinate well for two to three years and frequently far longer. Left in a warm drawer, viability falls sharply within a year.

Are autoflowering seeds weaker?

Current autos are far closer to photoperiod strains than early ones were. Harvests per plant are generally smaller because the plants are smaller, but potency in good lines is comparable.

Why did a seed fail to sprout?

The most frequent causes are too long in water, cold, a medium that is too wet or too dry, and injury to the taproot during handling. Truly dead seeds are rarer than mistakes in the process.

Can I tell the sex of a seed by looking at it?

No. Methods based on shape, markings or the crater at the base have no scientific basis. Only feminized breeding, or waiting for the plant to reveal preflowers, determines the sex.

Does Bud Weed Seeds sell CBD-only strains?

Yes. The catalogue includes high-CBD lines with negligible THC, marked as such on the product page, alongside balanced and THC-dominant strains.