Question 1

What is the difference between feminized, regular, and autoflower cannabis seeds?

Accepted Answer

What is the difference between feminized, regular, and autoflower cannabis seeds?

When buying cannabis seeds, you will generally come across three types: regular, feminized, and autoflower seeds. Each type has its own advantages and suits a different growing purpose. Below we explain the differences clearly so you can make the right choice for your situation.

Regular seeds

Regular cannabis seeds are the “natural” version. They can produce both male and female plants (about 50/50). This makes them popular among growers who want to select, clone, and possibly crossbreed their own plants.

Pros: Ideal for selection, genetic stability, and creating mother plants.
Consideration: Male plants must be identified and removed in time to prevent pollination.

Feminized seeds

Feminized seeds are developed to almost always produce female plants. This saves time, space, and risk since you don’t have to identify plant sex. Perfect for growers aiming for buds and maximum yield.

Pros: Maximum chance of female plants, efficient use of grow space.
Consideration: Less suitable for breeding projects; maintain a stable climate to avoid stress.

Looking for something special? Check out our Cali feminized and the wider range of Cali seeds.

Autoflower seeds

Autoflower seeds automatically switch to the flowering phase based on age rather than light schedule. They are simple to grow and quick to harvest—ideal for beginners or those with little time or space.

Pros: No need for light schedule management, compact growth, usually ready to harvest within 8–10 weeks from seed.
Consideration: Generally slightly lower maximum yields than photoperiod plants, with less time for advanced training techniques.

Want West Coast genetics with the same ease? Check out Cali autoflower.

Which should you choose?

For selection and breeding: Regular seeds.
For reliability and yield per m²: Feminized seeds (tip: see Feminized seeds and Cali feminized).
For quick, simple, and compact grows: Autoflower seeds (or Cali autoflower).

Looking for specific traits such as milder effects or a different cannabinoid balance? Check our CBD seeds.

Question 2

How long do cannabis seeds remain viable, and how should I store them?

Accepted Answer

How long do cannabis seeds remain viable, and how should I store them?

Well-stored cannabis seeds can remain viable for a long time. Under normal home conditions, you can expect good germination for 2–3 years. With optimal storage (cool, dark, dry, and airtight), this can often extend to 5 years or more. The key is to limit the four threats: heat, light, moisture, and oxygen.

Best storage conditions (C.D.D.A. principle: Cool, Dark, Dry, Airtight)

Cool: Store at a stable, low temperature. A refrigerator (±4–8 °C) is ideal. Avoid temperature fluctuations.
Dark: Protect from direct light. Use opaque packaging or store in a box.
Dry: Low humidity preserves viability. Add a silica gel pack to absorb residual moisture.
Airtight: Seal seeds in airtight containers (e.g., glass jar or sealed zip bag in a box).

Practical storage methods

Refrigerator storage: Place the (original) blister or baggies in an airtight container with silica gel. Keep at the back of the fridge where the temperature is stable.
Freezing (long-term only): Possible, but only if seeds are completely dry, vacuum sealed, and kept at a constant temperature. Avoid repeated thawing/freezing.
Label & organize: Record strain name and purchase/pack date. Helps track freshness and batches.

Common mistakes to avoid

Condensation damage: Remove seeds from the fridge while sealed and let them reach room temperature (±24h) before opening.
Kitchen drawer/windowsill: Fluctuations in heat and light accelerate aging and reduce germination.
Opening too often: Regularly opening containers introduces moisture and temperature swings. Store in smaller sealed batches.

Quick checklist

Keep in original packaging inside airtight container with silica gel.
Store cool (preferably fridge), dark, and dry.
Allow sealed seeds to reach room temperature before use.
Label strain and date; use older batches first.

Ready to stock up?

Browse our categories to expand your collection:
Feminized seeds,
Autoflower seeds,
CBD seeds, and
Cali seeds.

Question 3

How do I properly germinate cannabis seeds?

Accepted Answer

How do I properly germinate cannabis seeds?

Germination is a crucial step for a successful grow. With the right method, you increase your chances of strong, healthy plants. There are several techniques, but the principle remains the same: create a moist, warm, and dark environment where the seed can safely sprout.

What you need

Fresh, quality seeds (Feminized, Autoflower, CBD, or Cali seeds).
Tap water or preferably filtered/spring water at room temperature.
Cotton pads or paper towels.
Airtight container or zip bag.
Warm, dark place (±20–25 °C).

Popular germination methods

Paper towel method: Place seeds between two moist paper towels, put them in an airtight container or bag, and store in a warm, dark place. Check daily for a root tip (0.5–1 cm).
Glass of water method: Soak seeds in lukewarm water for 12–24 hours. Once they sink, plant them directly or transfer to the paper towel method.
Direct in medium: Plant seeds directly in soil or grow medium at about 0.5–1 cm depth. Keep medium moist (not soaked) and in the dark until sprouts appear.

Tips

Use clean water and avoid chlorine if possible.
Keep medium or paper moist, but avoid overwatering to prevent mold and suffocation.
Never touch the root with your fingers—it is fragile.
Plant sprouted seeds carefully with the root facing downward.
Maintain a constant temperature of 22–25 °C for fast and healthy germination.

Common mistakes

Too much water, causing seeds to rot.
Temperatures too cold or unstable, slowing germination.
Waiting too long to plant after sprouting, risking damage or drying out.

Ready for the next step?

After germination, transfer your seedlings into their first pot. Choose seeds that fit your grow plan, such as feminized for maximum yield, autoflower for quick growth, or Cali seeds for special genetics.

Question 4

What are the optimal growing conditions for cannabis plants?

Accepted Answer

What are the optimal growing conditions for cannabis plants?

Healthy and vigorous cannabis plants are the result of the right combination of light, temperature, humidity, nutrients, and space. By optimizing these factors, you can get the most out of your feminized, autoflower, CBD, or Cali seeds.

Light

Vegetative stage: 18 hours of light and 6 hours of darkness per day for photoperiod plants. Autoflowers also thrive under 18 hours of light, and some can even handle 20 hours.
Flowering stage: 12 hours of light and 12 hours of darkness for photoperiod plants. Autoflowers continue flowering under 18/6.
Use strong grow lights (LED or HPS) for best results, or choose a sunny outdoor location.

Temperature

Daytime: 21–28 °C for optimal growth.
Nighttime: 18–22 °C to avoid stress.
Avoid temperature fluctuations greater than 10 °C between day and night.

Humidity (RH)

Seedlings and clones: 65–70% relative humidity.
Vegetative stage: 50–60% RH.
Flowering stage: 40–50% RH to prevent mold and bud rot.
Lower RH to ±40% in the last weeks of flowering for denser buds.

Nutrients and water

Use nutrients tailored to the growth stage (grow nutrients for vegetative stage, bloom nutrients for flowering).
pH value of water and nutrient solution: 6.0–6.5 in soil, 5.8–6.2 in hydro/coco.
Avoid overwatering; let the top layer of soil dry slightly before watering again.

Air circulation

Good ventilation prevents mold and strengthens stems.
Use fans to circulate air and distribute CO₂.
Avoid strong direct wind on the plants, which can cause leaf damage.

Space and training

Ensure plants have enough space to grow and leaves don’t overlap excessively.
Training techniques like LST (Low Stress Training) or topping can help create an even canopy and increase yield.

Ready to get started?

With the right conditions, your plants will grow strong and healthy. Choose the seeds that fit your grow style, such as feminized, autoflower, CBD, or Cali seeds, and lay the foundation for a top harvest.

Question 5

How many cannabis plants can I legally grow for personal use?

Accepted Answer

How many cannabis plants can I legally grow for personal use?

The rules for growing cannabis plants differ per country and sometimes even per municipality. In the Netherlands and Belgium, cannabis cultivation is not fully legal, but in some cases small-scale personal growing is tolerated or limitedly permitted. It’s important to know the current laws before you start growing.

Netherlands

In the Netherlands, there is a tolerance policy. In practice, it usually allows up to 5 cannabis plants for personal use.
The plants must be outdoors and cannot include professional equipment (such as strong lights, climate control, or automatic irrigation).
If you are caught with more than 5 plants, or with professional equipment, it is considered illegal cultivation and can lead to prosecution.
Municipalities may apply stricter rules, for example in cases of nuisance or in certain neighborhoods.

Belgium

In Belgium, growing cannabis plants is prohibited, but in some cases there is a tolerance policy for one female plant for personal use, provided you are of legal age.
Professional cultivation, selling, or possession of multiple plants is considered drug production and is punishable by law.
Local police and prosecutors may handle small-scale growing differently depending on the region.

Tips to avoid problems

Stick strictly to the permitted number of plants in your country or municipality.
Avoid nuisance such as strong odors or visible plants in gardens.
Do not use large-scale or professional equipment if you want to stay within tolerated limits.
Check your local municipality or official government websites for up-to-date regulations.

Want to grow within the rules?

Planning a small, personal grow? Choose seeds that fit your situation, such as feminized seeds for maximum yield per plant, autoflower seeds for a quick harvest, or CBD seeds for milder effects.

Question 6

What is the difference between indica, sativa, and hybrid strains?

Accepted Answer

What is the difference between indica, sativa, and hybrid strains?

When buying cannabis seeds, you’ll often see the terms indica, sativa, and hybrid. These refer to the plant’s genetic origin and influence its appearance, growth cycle, yield, and effects. Understanding these differences helps you decide which type best suits your needs.

Indica

Origin: From mountainous regions like Afghanistan, Pakistan, and India.
Appearance: Short, compact plants with broad, dark green leaves.
Growth: Shorter flowering time (usually 7–9 weeks), suitable for smaller spaces.
Effect: Relaxing, calming, and often physically heavy. Ideal for evenings, stress relief, and sleep issues.

Sativa

Origin: From warmer regions such as South America, Africa, and Southeast Asia.
Appearance: Tall, slender plants with narrow, lighter leaves.
Growth: Longer flowering time (usually 10–14 weeks), often higher yields outdoors.
Effect: Energetic, creative, and uplifting. Popular for daytime and social use.

Hybrid

Origin: A cross between indica and sativa genetics.
Appearance: Varies depending on dominant genetics (indica-dominant, sativa-dominant, or balanced).
Growth: Combines traits, such as indica’s fast flowering with sativa’s larger yields.
Effect: Can be relaxing or stimulating, depending on indica/sativa ratio.

Which should you choose?

For relaxation and evening use: Indica-dominant strains.
For energy and creativity: Sativa-dominant strains.
For a balance of both: Hybrid strains.

Discover your favorite

Whether you enjoy indica’s deep relaxation, sativa’s uplifting energy, or hybrid versatility, there’s always a strain that fits your style. Explore our selection of feminized seeds, autoflower seeds, CBD seeds, and Cali seeds to find your perfect match.

Question 7

How long does it take before my cannabis plants are ready to harvest?

Accepted Answer

How long does it take before my cannabis plants are ready to harvest?

The time it takes for cannabis plants to become ready for harvest depends on the seed type, strain, and growing conditions. On average, it takes 8 to 16 weeks from the start of flowering, but the full grow cycle is usually longer because germination and vegetative growth also count.

Factors that affect harvest time

Seed type:
- Autoflower seeds: often ready within 8–10 weeks from germination.
- Feminized photoperiod seeds: typically 3–6 weeks vegetative growth + 8–12 weeks flowering.
Genetics: Indica-dominant strains usually flower faster (7–9 weeks) than sativa-dominant strains (10–14 weeks).
Conditions: Light, temperature, nutrients, and care all affect speed and quality of the harvest.

Average timelines per type

Autoflower: 8–10 weeks total, from seed to harvest.
Indica-dominant: 10–14 weeks total (including vegetative stage).
Sativa-dominant: 12–20 weeks total (including vegetative stage).
Hybrid: 10–16 weeks, depending on dominant genetics.

How to tell if a plant is ready

Trichomes: Check resin glands with a magnifier. Milky trichomes with some amber indicate the best harvest moment.
Pistils: When 70–90% of the hairs turn dark brown/orange, the plant is usually ready.
Aroma and density: Buds are compact and have reached maximum aroma and resin production.

Harvest tip

Be patient—don’t harvest too early. Waiting even one more week can significantly improve potency, flavor, and yield. Always note grow dates to learn how your favorite feminized, autoflower, CBD, or Cali strains perform.

Question 8

Which cannabis strain is best for beginners?

Accepted Answer

Which cannabis strain is best for beginners?

As a beginner grower, you want a strain that is forgiving, low-maintenance, and still produces a solid yield. The best choice depends on your environment, but in general, autoflower seeds and some indica-dominant feminized strains are ideal for starters.

Why autoflower seeds are ideal

Indica-dominant feminized strains

Sturdy and robust: Indicas handle colder climates and minor mistakes better.
Short flowering time: Usually 7–9 weeks, reducing risks during the grow.
Compact growth: Easier to manage in smaller grow areas.
Explore our feminized seeds and Cali feminized.

Strains beginners should avoid

Sativa-dominant strains: These take longer to flower and require more experience with training and feeding.
Very sensitive strains: Exotic genetics can react poorly to small mistakes in watering, feeding, or climate.

Extra tips for beginners

Choose a strain that matches your climate (indoor or outdoor).
Always read strain-specific grow info to know what to expect.
Start small, with 1–3 plants, to build experience without being overwhelmed.

Ready to start?

Want an easy beginning? Choose a reliable autoflower or a strong feminized indica. This increases your chances of a successful first harvest and helps you learn step by step.

Question 9

Can I grow cannabis seeds outdoors, and what should I keep in mind?

Accepted Answer

Can I grow cannabis seeds outdoors, and what should I keep in mind?

Yes, you can definitely grow cannabis seeds outdoors. In fact, outdoor growing has many advantages: natural sunlight, fresh air, and lower energy costs. However, there are important factors to consider for a healthy harvest.

Choose the right seeds

Autoflower seeds: Perfect for beginners and short summers. They flower automatically and are often ready in 8–10 weeks. Check our autoflower seeds.
Feminized seeds: Great for maximum yields if you have more time. They need a longer season. Explore our feminized seeds.
CBD and Cali strains: For special flavors, effects, or medicinal purposes. Browse our CBD seeds and Cali seeds.

Timing is important

Plant outdoors only after the last frost (in the Netherlands and Belgium usually after mid-May).
Autoflowers can be grown multiple times per season; feminized strains are best started in spring for a late summer or autumn harvest.

Location and light

Choose a spot with at least 6–8 hours of direct sunlight per day.
Shelter plants from strong winds but ensure good airflow.
Avoid locations with curious neighbors or potential nuisance.

Soil and nutrients

Use airy, nutrient-rich soil with good drainage.
Add organic fertilizers as needed, tailored to the growth stage (grow and bloom nutrients).
Water during dry periods, but avoid keeping roots constantly wet.

Protection against pests and mold

Inspect plants regularly for aphids, spider mites, and caterpillars.
Reduce mold risk (like bud rot) by ensuring airflow and pruning excess leaves during flowering.
In rainy late summers, a temporary cover can help.

Tips for growing Cali strains

Why buy Cali seeds from Seeds Genetics Co

Steentjes

What is the difference between feminized, regular, and autoflower cannabis seeds?

Regular seeds

Feminized seeds

Autoflower seeds

Which should you choose?

How long do cannabis seeds remain viable, and how should I store them?

Best storage conditions (C.D.D.A. principle: Cool, Dark, Dry, Airtight)

Practical storage methods

Common mistakes to avoid

Quick checklist

Ready to stock up?

How do I properly germinate cannabis seeds?

What you need

Popular germination methods

Tips

Common mistakes

Ready for the next step?

What are the optimal growing conditions for cannabis plants?

Light

Temperature

Humidity (RH)

Nutrients and water

Air circulation

Space and training

Ready to get started?

How many cannabis plants can I legally grow for personal use?

Netherlands

Belgium

Tips to avoid problems

Want to grow within the rules?

What is the difference between indica, sativa, and hybrid strains?

Indica

Sativa

Hybrid

Which should you choose?

Discover your favorite

How long does it take before my cannabis plants are ready to harvest?

Factors that affect harvest time

Average timelines per type

How to tell if a plant is ready

Harvest tip

Which cannabis strain is best for beginners?

Why autoflower seeds are ideal

Indica-dominant feminized strains

Strains beginners should avoid

Extra tips for beginners

Ready to start?

Can I grow cannabis seeds outdoors, and what should I keep in mind?

Choose the right seeds

Timing is important

Location and light

Soil and nutrients

Protection against pests and mold