The winter hardiness also depends on the variety
How much Frost a hydrangea tolerated is usually noted on the plant label, because not all hydrangea varieties cope equally well with the longer periods of frost in our climatic zone. Farmers' hydrangeas are considered to be particularly hardy and robust, as they freeze back relatively little, even in rough areas and with some winter protection. Even Panicle hydrangeas tolerate frosty temperatures well.
also read
- Hydrangeas: flowers in many different colors
- Hydrangea growth: how big and wide is the hydrangea?
- Red hydrangeas need the right soil
Winter protection makes sense
Even hardy ones Hydrangeas need a light winter protection. The following measures have proven effective:
- Withered Do not cut off in autumn, this will protect the new shoots from frost damage.
- The root neck about ten inches high with Bark mulch, Cover garden soil or compost.
- In rough areas, the plant also has a special one Plant fleece or one Burlap sack(€ 14.29 at Amazon *) cover. The packing material should be supported by poles so that the weight of the snow does not rest on the branches.
Please never use plastic wrap to protect the hardy hydrangea from the cold. Bubble wrap is also unsuitable. Moisture accumulates under these airtight materials. These are optimal conditions for Mold and other fungi, which can cause massive damage to the plant.
Hibernate hardy hydrangeas in the tub
Hydrangeas whose pots are less than thirty centimeters in diameter should preferably be overwintered indoors. A room in which there is a temperature of around ten degrees during the day is well suited. Ventilate regularly, because if the humidity is too high, there is a risk of fungal infections.
Hibernate potted hydrangeas outdoors
With our tips you can also find hardy hydrangeas on the balcony or terrace in the cold season maintain:
- Not anymore from late summer fertilizeso that the shoots mature by winter.
- Remove the coasters and the hydrangea instead stand on styrofoam or terracotta feet. This protects the plant from rising ground cold.
- Nevertheless, ensure optimal water drainage to avoid waterlogging.
- Do not pack plants too early to harden them for the coming cold season.
- Might snow fall on the hardy hydrangea, support the fleece or jute with a wooden cross. This prevents snow breakage.
- You can also pack the pot in insulating bubble wrap or styrofoam.
Tips
Hardy hydrangeas usually do not freeze to death - but they can dry up. It is therefore important to water the plants moderately but regularly even in winter, especially when the days are a little warmer and free of precipitation.
