Roses are generally undemanding plants. With our tips, you can make it even easier for your favorites to establish themselves in your garden and thrive throughout the summer:
Location:
Sufficient sunshine, at least 5-6 hours daily
New plantings:
Please water regularly, water from the side.
Existing plantations (after 2-3 years):
Watering is not necessary even during prolonged dry periods, as roses are very drought-resistant. However, during prolonged dry spells, watering every 2-3 weeks can help your roses get through the summer even better, provided that water supplies allow and there is no water shortage in your area.
Loosen the soil around the rose a little (e.g. with a rose fork) to allow air to reach the roots and to increase the water absorption capacity when it next rains or you water the plants.
Maintaining good health:
To prevent fungal infestation, water from the side and from below so that the leaves remain dry. A small mound of earth around the plant will prevent the water from running off. Your roses will particularly appreciate rainwater or stale tap water.
Treatment for fungal infections:
If black spot does occur, it is advisable to remove the leaves and collect them from the ground, then dispose of them in the household waste. You don't have to resort to harsh chemicals straight away; try home remedies such as diluted milk first.
Tip: Apply a thin layer of new soil around the rose to prevent the spores from spreading. Most roses are resilient enough to recover quickly.
In the case of severe and recurring infestation, a plant protection product against fungal pathogens should be sprayed on the roses. Please repeat this as indicated on the packaging.
You can obtain detailed advice on sprays and how to use them from your local garden centre.
Summer pruning & fertilisation:
After the first bloom (early/mid-July), the faded umbels or individual flowers should be cut back below the flower, above a fully developed five-leaflet.
Now is the time for a final application of fertiliser to give the shoots enough time to harden before the frost sets in. Organic-mineral mixtures (no slow-release/long-term fertilisers) are suitable as fertiliser, but only use 2/3 of the recommended amount for the final fertilisation.
How to increase winter hardiness:
To help your roses survive the winter, you can apply Patentkali (potassium magnesium sulphate) from the end of August to support the hardening of the shoots. Patentkali is available from garden centres or specialist garden retailers.
Water well!