Fructus Iglaki Jesienny - autumn fertiliser for conifers granulated

Fructus Iglak Jesienny – granulated autumn fertiliser for conifers

Fructus Iglak Jesienny is a specialised granulated fertiliser designed for the autumn care of conifers and acid-loving plants. Based on potassium sulphate, it combines a compound formula with a nitrogen-free composition, supporting the natural process of preparing plants for winter.

Rich in phosphorus and potassium, it provides key nutrients at every stage of development, especially in the autumn period when plants build resistance to frost and diseases. The fertiliser contains magnesium and iron which maintain the intense, natural colour of needles and leaves.

Thanks to its granulated form, the fertiliser works gradually and long-lasting, steadily releasing nutrients, ensuring stable and effective nourishment throughout the autumn.

Which plants is Fructus Iglaki Jesienny fertiliser suitable for?

Fructus Iglak Jesienny fertiliser has been developed for conifers and acid-loving plants. It works excellently for fertilising:

• Coniferous trees: spruces, pines, firs, larches, Douglas firs

• Coniferous shrubs: junipers, thuja (arborvitae), yews, cypresses

• Ericaceous plants: heathers, heaths, rhododendrons, azaleas

Benefits of using Fructus Iglak Jesienny fertiliser

• Specialised fertiliser for conifers and acid-loving plants – a compound, nitrogen-free formula based on potassium sulphate tailored to the specific needs of these species.

• Strengthening plant resistance before winter – phosphorus and potassium support root system development and prepare plants for overwintering, increasing resistance to frost, diseases and drought.

• Intense, natural colour of needles and leaves – magnesium and iron maintain healthy colouring and prevent yellowing and browning.

• Long-lasting effect – the granulate releases nutrients gradually, providing plants with stable and effective nourishment for many weeks.

• Efficiency and ease of use – a small amount of fertiliser is sufficient for effective feeding, and the granulated form facilitates even spreading.

What nutrients are contained in Fructus Iglak Jesienny fertiliser?

• phosphorus (P2O5) - 9%,
• potassium (K2O) - 18%,
• magnesium (MgO) - 4%,
• sulphur (SO3) - 34%,
• calcium (CaO) - 16%.

More precisely:

• phosphorus pentoxide (P2O5): 8 % soluble in neutral ammonium citrate solution,
• phosphorus pentoxide (P2O5): 7% soluble in water,
• potassium oxide (K2O): 18 % soluble in water,
• calcium oxide (CaO): 9.5% soluble in water,
• magnesium oxide (MgO): 4% total,
• sulphur trioxide (SO3): 18% soluble in water,
• iron (Fe): 1% total in the form of sulphate.

What type of fertiliser is Fructus Iglak Jesienny?

• PK (Ca, Mg, S) 9:18 (16:4:34)

What is the recommended application timing for Fructus Iglaki Jesienny fertiliser?

Recommended timing: August, September, October – the optimal period for preparing plants for winter.

Possible timing: March – July.

How to apply and dose the Fructus autumn fertiliser for conifers

Application instructions:

The fertiliser should be evenly spread in a radius slightly larger than the crown outline of the tree or shrub, then watered abundantly. The dose is selected depending on the age and size of the plant.

General recommendations:

• Apply 1–2 times during the growing season.

• Interval between applications: minimum 4 weeks.

Approximate doses:

• Young plants (up to 1 m height): 5–20 g per plant

• Older plants (over 1 m height): 25–40 g per metre of tree or shrub height

• Dense plantings, e.g. hedges, beds: 0.5–1 kg per 10 m²

• Growing media for container cultivation: 1–2 kg per 1 m³