Although it is primarily considered a field brassica, kale is increasingly being grown indoors. Commercially grown indoor kale serves a range of end markets, especially due to its reputation as a nutrient-dense “superfood”. The market offers premiums for growers producing whole-leaf bagged baby kale or mixed salad, suitable for both retail and catering markets.
ActivatedAir Germination Results
Zayndu’s growing team compared ActivatedAir primed kale seeds against untreated seeds, analysing the percentage of germination, germination speed, crop growth and yield.
The results were outstanding.

📊When it comes to germination, ActivatedAir not only increased the speed and consistency of germination but also the overall percentage.
- Day 5: 2.5x more germination than the untreated
- Day 6: 16% more germination
- Day 7: 11% more germination
🌿What does that mean in a commercial situation?
- Reduced seed cost
- Seedlings with a 2 – 4 day head start
- More even crop growth and harvestability


ActivatedAir Yield Results
When the trial was taken to yield, getting the crop off to the best start meant an additional 11% of yield.

Want to Find out More?
You can speak to a member of our expert team about how you, too, can unlock 11% yield gains for your kale crop.
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Research provided by Sam Gee
What Are the Agronomic and Planting Characteristics of Kale Seeds?
Some seed suppliers offer seeds pre-primed, but what if there was a way to prime kale seed on-site, providing greater flexibility and adaptability?
Trait | Description |
---|---|
Sowing Depth | 0.5 – 1 cm |
Spacing (Hydroponics) | 10 – 20 cm depending on growth stage |
Light Requirements | Low; does not require light to germinate |
Preferred Medium | Soil, coco coir, rockwool, or hydroponic raft/net pots |
Germination Rate | 90% + for high-quality commercial seed |
Common Priming Methods | Osmotic or plasma priming to enhance speed and uniformity |
That’s what ActivatedAir provides growers; it’s an easy on-site priming system delivering double-digit yield gains. Let’s take a look at some of the results.