- Bouquet hydrangeas are frost-resistant, but young bushes and those exposed to severe frost (-10°C and below) or wind require covering.
- Protect the roots with a mound of bark, cones or leaves (approx. 30 cm), and wrap the shoots with agrotextile, creating a loose cocoon.
- Remember to water in winter during the thaw to prevent physiological drought, which can damage the plants.
- Find out when exactly to remove the cover and how to properly care for bouquet hydrangeas in winter!
Do it now with bouquet hydrangea. When and how to cover bouquet hydrangeas in winter?
. The vast majority of people who have this variety of hydrangeas in their garden have covered them a long time ago. In this case it is simple. We keep agrotextile covers and mounds protecting the roots until the beginning of spring, when there are no more night frosts. The situation is slightly different in the case of bouquet hydrangeas. This species is frost-resistant and does not always require covering for the winter. An exception may be young bushes that need additional support. However, it is worth knowing that even bouquet hydrangea needs cover during very severe frosts. Gardeners indicate that when the forecast predicts long-term frost, at a level of -10 degrees Celsius, it is worth thinking about securing bouquet flowers as well. Shrubs exposed to winds that are not naturally protected in any way may require covering. The second half of January 2026 in Poland promises to be very frosty. Forecasters indicate that in many regions of our country temperatures may drop even below -20 degrees Celsius. This is definitely the time when it is also worth taking care of bouquet hydrangeas.
Covering is no different from wintering other shrub species. First, you should take care of the roots by making a small mound, about 30 centimeters high. Bark, cones, old leaves and even peat are perfect for covering the roots. In spring, when the dismantling of the mounds begins, it is worth adding compost to the bouquet hydrangeas. It will act as an immediate conditioner, stimulating the bush to grow better and bloom after winter.
Shoots and stems should be covered with agrotextile. This is the best material for wintering plants. It protects against low temperatures and strong winds, and at the same time allows sunlight and moisture to pass through. When covering bouquet hydrangeas, make a small cocoon around the shoots, remember to protect the top of the plant against heavy snowfall. Tie the cover gently at the bottom. It is important that the binding is strong, but not too tight. Keep the cover prepared in this way during the heaviest frosts. In the case of a bouquet hydrangea, you can remove the cover earlier than in the case of a garden hydrangea. Do this when temperatures return to a slight frost level, which is a few degrees below zero.
A dangerous phenomenon in the garden during high frosts. Don’t forget about this
For many garden plants, the greatest threat at this time of year is physiological drought. This is a specific phenomenon that occurs when frost occurs. Physiological drought occurs when plants are unable to absorb water from the ground due to frost. Freezing temperatures make the ground too hard for plants to absorb water. Then they lose the moisture stored in the shoots and begin to wither. Physiological drought is a slow process and its effects are most often noticeable only in spring. Gardeners indicate that symptoms of physiological drought appear in March or April, when the plant comes to life.
Watering is an important measure to counteract physiological drought. Many plants also need to be watered in winter. Experts indicate that winter watering is best done during the thaw. A previously prepared mound around the roots will keep moisture in the ground, and the plant will be able to absorb it freely. Do winter watering in the afternoon so that the water does not freeze during night frosts.
