In this newsletter you will find all information that is currently relevant to the crop of peonies. We trust that this information will help you in achieving a successful crop. Feel free to contact us for questions and remarks!

Dear peony grower,

For a long time now you are receiving this newsletter from us. With information regarding the cultivation of peonies. Because we are always looking for ways to improve ourselves, we would like to hear from you how relevant this information actually is. What are things you would like to see differently and are there topics on which you would like to receive more information? We greatly appreciate any feedback, so please let us know!

Phytophthora

A quite new infestation in peonies is known as Phytophthora. An infection which takes place through injuries under humid circumstances. The fungus can survive in plant tissue and in the soil for years.

Click here for all the information regarding Phytophthora.

Watering

Paeonia is a sensitive crop. The crop is not strong due to the fast growth after sprouting. The plant repels its weakest flowers when the growth is fast while the weather is bleak. Especially during cold nights the frost will be blamed for this, but a lack of water is most likely the main reason.  A sudden spell of warm weather during the stretching increases the risk too. Do not wait with watering until the soil is dry, but make it as pleasant for the plant as possible.

Click here for all the information regarding Watering.

Botrytis

The first treatment against Botrytis has to take place when the plants start to emerge.  The new shoots can be infected when they emerge from the soil due to the fact that the fungus lingers at the surface of the soil during the winter. Drenching the soil with Collis or Luna can reduce the number of infected plants - for example with a sensitive variety like Flame - by more than 90%. Peonies damaged by the wind and frost are also more sensitive. Varieties in which Botrytis was present

after flowering in the previous season, also need extra care. We would really like to emphasize the need to treat the plants timely and preventively. There is an advantage in doing so.

Click here for all the information regarding Botrytis.

Weed control

Weed control in peonies is more of a matter of discipline than a choice of means. In weed control the amount of organic content is almost only the most important factor. A heavy clay soil with almost little to no humus is light soil for weed control. The effect of a weed control product is being determined by a small line between effect and damage.

Click here for all the information regarding Weed control.

Fertilizing

A quality peony needs a well-balanced fertilizing. The time in which a little bit of this and a little bit of that was enough, has passed.  Peonies that have been standing in the same spot for multiple years can deplete the soil and therefore they need fertilizers.

Click here for all the information regarding Fertilizing.

Main elements

Nitrogen is the element that is absorbed the most and the easiest by the plant. A peony needs a lot of nitrogen during strong growth, like in the first weeks with vegetative growth (length growth). There are two types of nitrogen in your soil: ammonium nitrogen and nitrate nitrogen. Ideally we see equal amounts of each (a 1:1 ratio). Multiple problems can occur when there is a shortage of nitrogen. The older foliage might turn yellow to light green. The plants might flower too early, have less length growth and are more sensitive to fungal diseases and insects.

Too many nitrogen is not good for the Ca/Mg absorption.

Click here for all the information regarding Main elements.

DCM

What are DCM organic fertilizers?

Organic fertilizers are composed of plant material and animal raw materials. All materials have a natural origin. Soil organisms – such as bacteria and fungi – are slowly breaking the fertilizer down. Nutrients inside the fertilizer (nitrogen, phosphorus and potassium for example) are released in this process. Through the use of multiple raw materials and gradual digestion, the nutrients are available to the plants over a longer period of time - about 100 days.

Click here for all information from DCM.

KaRo

The first shoots are coming out of the ground. The plant wants to get its sugar transport going again. Especially in this initial phase the crop needs boron, silicon and calcium. These three elements play a crucial role in the start of the growth:

1) Boron activates silicon

2) Silicon starts the absorption of elements, starting with calcium

3) Calcium takes care of strong cell walls and thus a resilient crop

Click here for all information from KaRo.

When planting peonies; the benefits of investing in 3-5 eyes compared to 2-3 eyes:

Number of stems / flowers per plant (2-3 or 3-5 eyes):

Variety Year Amount of stems Amount of stems
    2-3 eyes 3-5 eyes
Sarah Bernhardt Planting in autumn:  2020    
  Spring:                     2021 0 0
  Spring:                     2022 0 3
  Spring:                     2023 4 7
  Spring:                     2024 6 8
  Spring:                     2025 7 9
  Spring:                     2026 8 9
  Spring:                     2027 8 9
    33 45

Have a look at our product pages for more information regarding our cut flowerspot plants and peonies.

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