Helleborus Queens spring 2016
Dear Helleborus grower,
Start watering in March when the new leaves start growing. Continue watering as long as the leaves are growing, make sure to let them dry up first before watering!
(When the leaves are developed for 2/3 give more water).
Remove the uncut flowers, these take a lot of energy from the plant. After removing the flowers also spray against botrytis.
Take regularly a soil sample and apply nitrogen in spring to control growth.
At growth of new leaves spray multiple times against botrytis. Loss of leaves due to botrytis = loss of flower stems at the next harvest. Control botrytis with Luna, Switch, Kenbyo, Teldor or Rovral (anti botrytis that leaves no residue)
False mildew is a disease that, in our experience, can cause the most damage. In the months April till October there has to be sprayed preventive against this disease. Strongly affected plants have to be removed to prevent spreading of false mildew. A good air circulation in the greenhouse is important. Draft should be avoided at all times, strong wind helps to spread the disease fast. Spray Ortiva + Ridomil Gold, Flint to control false mildew.
From the end of April we recommend to protect the leaves, for example by chalking or the installation of shades. When the leaves are being grown in these months without diseases it will benefit the flower quality and quantity. When the humidity is high enough a full grown Helleborus Queens® can bear high temperatures in the summer months.
Lice can cause damage throughout the year, a good scouting is very important. Control with Admire or Confidor (also works at low temperatures!)
Red spider can cause problems in the warm summer months. Control with Scelta or Floramite.
Caterpillars can cause damage above as well as under the ground. Control with Turex or Decis.
Snails can cause damage above as well as under the ground.
In the extended cultural information PDF we talk in depth about the following subject:
- Planting time and first growing season
- Growing periods and leaf cutting
- The harvesting of flowers
- Plant protection
- The soil
Click on the button below to view the extended cultivar information PDF for the Helleborus Queens®:
Extended cultural information PDF
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