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Grow Island: Limited Cannabis Seedlings & Premium Genetics for Spring 2025

Grow Island: Limited Cannabis Seedlings & Premium Genetics for Spring 2025

This time, we have prepared with special genetics and exclusive seedling offers – for professional growers and those seeking a premium experience. Our selected strains are now available both as pre-grown seedlings and stable clones, so you not only save time but also start the season on a solid foundation. Discover our Spring 2025 collection and grab the limited editions while supplies last!

2025 Spring Genetic Specialties at Grow Island

Exclusive pre-grown seedlings and high-end clones for professional growers


Spring is always a time of renewal – not only in nature but also in the lives of growers. As the season begins, more and more people are looking for genetically reliable, premium strains that are not only beautiful but also offer a unique experience in every color combination.

Pre-grown Hemp Plants

The Grow Island team has therefore curated a collection: pre-grown seedlings and stable clones available in special strains that were previously known only in foreign forums and among elite growers. Now they are available locally – and ready to grow.

Let’s take a closer look at what we have prepared for Spring 2025:


Sherb Creme Pie – 5+3 FREE Promotion

A powerful, compact-built plant with medium internodes. It delivers excellent indoor performance and responds well to LST and other training techniques. Its uniform growth and pronounced, sweet terpene profile make it especially attractive for professional growers. The seedling is now available in the 5+3 FREE promotion – an economical and practical choice for those working with multiple specimens.


Crostata – 5+3 Promotion

Named after the Italian dessert, Crostata embodies a truly special, “pastry-like” genetics. It is characterized by a rapid vegetative phase and vigorous lateral branching. Above-average root development can be observed within the first days. In our experience, this strain is highly recommended for both beginners and professionals – it grows quickly and responds excellently to training techniques.


Rainbow Chip – 5+3 Promotion

A hybrid that is unbeatable in appearance. Rainbow Chip features striking buds in vibrant green, purple, and orange hues, which are highly resinous and extremely intense. Its terpene profile is sweet, citrusy, and accented by a slight minty touch, making it a true connoisseur’s strain. Thanks to its stress-resistant genetics, it responds steadily to intense light and a CO₂-rich environment – showing rapid growth in the vegetative phase.


Animal Tsunami

This indica-dominant genetics lives up to its name: slow but inexorably arriving waves bring physical relaxation. Characterized by strong stem development, robust growth, and a distinctive terpene profile, it responds consistently to intense light and a CO₂-rich environment – resulting in rapid growth during the vegetative phase.


Gary Payton x Jealousy – 3 Pre-grown Seedlings

Those who follow the trends of the American cannabis scene probably know both Gary Payton and Jealousy – but together in this hybrid, a truly powerful combination is born. An excellent choice for SOG or SCROG techniques. Intense aromas, extremely high resin production, as well as a dense and impressive bud structure characterize this strain. Now available as a pre-grown version in a convenient pack of three!


Amnesia Core Cut – 3 Pre-grown Seedlings

A classic that never goes out of style – but this is not your average Amnesia. The “Core Cut” is renowned throughout Europe as a reliable and high-performing variant, boasting incredibly citrusy aromas and a light yet distinctive scent. Both beginners and experienced growers love this strain because it adapts excellently to different environments.

Hemp Cuttings

Why Choose Pre-grown Seedlings or Clones?

  • Time-saving – no long wait for germination
  • Stable genetics – only female, tested specimens
  • Uniform growth – reliable quality
  • A pure starting point – fewer chances for mistakes
  • An advantage for outdoor planting – the optimal start, seasonally adjusted

Discover Our Full Range:

Pre-grown Seedlings

Hemp Cuttings (5+3 Promotion, only selected strains)


These strains are available in limited quantities – if you want to be sure, we recommend pre-ordering. Be the first to start the season with these exceptional genetics.

At Grow Island, we offer not only products but also experience, knowledge, and support.


Guide to Transplanting the Seedlings

The seedlings or clones purchased from us already have an established root system, so with a few small but important steps, a rapid and successful start can be ensured.

Growing Medium

Recommended soil mixes:

  • Biobizz Light-Mix (for the start, with fewer nutrients)
  • Biobizz All-Mix (contains more nutrients, only for larger seedlings)
  • Coconut – for advanced growers, for rapid root growth (daily nutrient application required)

Root Stimulation

For larger seedlings, it is advisable to make a slight diagonal or X-shaped cut at the lower root part (for example, with a sterile blade) or gently roughen it by hand. This stimulates the formation of new roots and leads to more compact growth.

pH and EC

  • For soil: pH value of the water: 6.2 – 6.5
  • For coconut: pH 5.8 – 6.2
  • Do not add high EC at the beginning – a mild, biological root stimulator (e.g. Root Juice or Bactrex) is sufficient

Light

  • Initially, 18 hours of light are recommended
  • If using LED lights, maintain a distance of 60–80 cm for the first 2–3 days
  • Gradually decrease the distance to 40–50 cm

Temperature and Humidity

  • Ideal temperature: 22–25 °C
  • Humidity in the first days: 65–75%
  • Once growth begins, humidity can be reduced to about 60%

Watering

  • Never oversaturate the medium
  • Only water when the top 1–2 cm are dry
  • Initially, a small, circular watering is sufficient

If you have any questions about nutrients, soil, or lighting – feel free to contact us; we’re here to help!

Grow Island – where stable growth begins.

www.growisland.at