Panicle hydrangea: planting, caring for & propagating

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What is the perfect location for panicle hydrangeas? What do you have to consider when fertilizing panicle hydrangeas? Everything about planting and caring for the hydrangea can be found here.

white panicle hydrangea in bloom
The robust panicle hydrangeas are very popular ornamental plants for the garden [Photo: photowind / Shutterstock.com]

Hydrangeas exist in many different species and varieties and our gardens can hardly be imagined without them. This is also confirmed by its name - "hydrangea" comes from the Latin word hortensiuswhich translates as "belonging to the garden". The panicle hydrangea is one of the most robust hydrangea species.

contents

  • Panicle hydrangea: flowering time, origin and characteristics
  • Panicle hydrangea varieties
    • Hardy panicle hydrangea varieties
    • Panicle hydrangeas as standard stem: Suitable varieties
    • Panicle hydrangeas in a tub: Small varieties for the pot
  • Planting rose hydrangea: location, timing and procedure
  • Maintain panicle hydrangea
    • Fertilize panicle hydrangeas
    • Water panicle hydrangeas
  • Propagate panicle hydrangeas
  • Hibernate panicle hydrangeas

Panicle hydrangea: flowering time, origin and characteristics

The panicle hydrangea (Hydrangea paniculata) belongs to the genus of hydrangeas (Hydrangea) in the hydrangea family (Hydrangeaceae). Like most hydrangea species, it is native to East Asia. Their wild form is common in China, Japan and Russia. Panicle hydrangeas grow as an upright shrub and become around 2 to 4 meters high and 2 to 3 meters wide when they are old. On the gray-brown branches there are oval to egg-shaped leaves about 6 centimeters wide and up to 15 centimeters long. They are intensely green in color and taper to a point. The leaf margin is finely serrated. In autumn the foliage often turns green-yellow. The flowering time of the panicle hydrangea is between July and October. This makes it one of the late blooming hydrangea species. The cone-shaped panicles of panicle hydrangeas are made up of sterile flowers with 3 to each 4 decorative, rounded sepals and made of fine, rather inconspicuous, fertile flowers together.

bright panicle hydrangea flower
The sterile flowers stand close together and, together with the fertile flowers, form the compact flower panicles [Photo: ingehogenbijl / Shutterstock.com]

Depending on the variety, panicle hydrangeas bloom in pink, pink or white to creamy white, combined with light green. The white varieties also often turn pink towards the end of flowering. That of the Garden hydrangeas (Hydrangea macrophylla) Well-known hydrangea blue does not exist in panicle hydrangeas. You may also have wondered whether panicle hydrangeas are bee-friendly. Most hydrangea species and varieties are dominated by sterile flowers. Bees and other insects find no food in these. But there are some panicle hydrangea varieties that have a higher proportion of nectar-rich, fragrant and fertile flowers and are therefore bee-friendly. These varieties include, for example, ‘Tardiva’ and ‘Kyushu’.

Panicle hydrangea of ​​the Kyushu variety
Varieties such as ‘Tardiva’ and ‘Kyushu’ have a higher proportion of nectar-rich, fertile flowers and thus provide food for bees and other insects [Photo: surotbar / Shutterstock.com]

Panicle hydrangea varieties

In addition to the proportion of fertile and sterile flowers, the various panicle hydrangea varieties differ primarily in their height and color. In addition, some varieties are well suited as standard stems.

Hardy panicle hydrangea varieties

Panicle hydrangea ‘Limelight’: Flower panicles up to 30 cm long; lime green flower color, changes from white to pale pink in the course of the flower; Flowering period: July - October; Height: up to 2 m; particularly frost hardy and robust.

Panicle hydrangea ‘Vanilla Fraise’: Flowers appear at the beginning of the flowering period in cream to vanilla white with a touch of pink over the course of the year in summer the pink becomes more and more intense, until the flowers turn deep purple in late autumn to shine; red-brown colored shoots; Flowering period: July - November; Height: up to 2 m; hardy and robust; also survives drier phases.

Panicle hydrangea of ​​the Vanille Fraise variety
The ‘Vanille Fraise’ variety forms panilla-white flower panicles with a hint of pink [Photo: Peter Turner Photography / Shutterstock.com]

Panicle hydrangea ‘Phantom’: Rarer variety; forms panicles over 30 cm in size; they appear in the beginning in white to creamy yellow and turn pink to red in autumn; Flowering period: August - October; Height: up to 2.5 m; particularly hardy.

Panicle hydrangea ‘Diamant Rouge’: Particularly large panicles of flowers (35 - 40 cm); at the beginning of flowering they shine in pure white, color changes from pink to an intense raspberry red; the foliage is initially fresh green and turns orange in autumn; Flowering period: July - September; Height: up to 2 m; hardy.

Panicle hydrangea ‘Tardiva’: Late variety; loose, fragrant panicles of flowers in white-pink; bloom well into October and provide food for insects when most of the other flowers have already faded; dark green leaf; Flowering period: July - October; Height: 2.5 - 3.5 m; well hardy and undemanding.

Panicle hydrangea ‘Kyushu’: Creamy white flower panicles; pleasant scent of fertile flowers, which attracts many butterflies; Flowering period: July - September; Height: 2 m; very frost hardy.

Panicle hydrangeas as standard stem: Suitable varieties

In addition to the Limelight ’panicle hydrangea, the Levana’ and ‘Wim’s Red’ varieties are also suitable as standard. They are also hardy. ‘Levana’ forms very large, pure white inflorescences up to 50 centimeters in length and reaches heights of 3 to 5 meters. Their flowering period lasts from June to September or October. The green leaves of this panicle hydrangea contrast nicely with the bright flowers. The ‘Wim’s Red’ variety shows white panicles of flowers as early as the beginning of June, which open after a time. During the flowering period, their color changes from light pink to intense red. This creates the impression that the flower panicles are blooming in multiple colors. ‘Wim’s Red’ is up to 2.5 meters high and blooms until September.

Panicle hydrangea as a standard stem
It is also possible to raise the panicle hydrangea to a standard stem [Photo: Edita Medeina / Shutterstock.com]

Panicle hydrangeas in a tub: Small varieties for the pot

Small panicle hydrangea varieties are suitable for planting in pots on the balcony or terrace. The lime green blooming dwarf panicle hydrangea ‘Mojito’ reaches a height of 90 to 100 centimeters. The white-blooming dwarf panicle hydrangea ‘Little Spooky’ is only about 30 to 50 centimeters high and the white-greenish to pink-red blooming dwarf panicle hydrangea ‘Little Fraise’ is 60 to 80 centimeters.

Planting rose hydrangea: location, timing and procedure

Panicle hydrangeas prefer a sunny to partially shaded location protected from the wind in the garden or on the balcony. They can be planted all year round, but ideally the plants will get into the soil in spring. The soil should be fresh, well-drained, rich in humus and nutrients and have a pH value between 5.5 and 6 (slightly acidic). Nutrient-poor, sandy garden soils should be sprinkled with some compost or high-quality potting soil like ours before planting Plantua organic universal soil be enriched. So much sand should be added to soils with a low permeability that it makes up at least one third of the soil volume in the planting hole. Mix the substrate well and then dig a sufficiently large planting hole. Use your hands or a spade to gently break the planting ball of the panicle hydrangea to encourage branching of the roots and place it in the planting hole. Fill the hole with substrate and press down firmly.

Pour generously. With a layer of mulch made of leaves or bark mulch, you can ensure that the moisture stays in the soil longer when watering and does not evaporate as quickly. Especially when planting in the warm season, it must be watered regularly afterwards.

tip: You can model a circular pouring rim around the hydrangea from excess garden soil. Always fill the pouring rim with water when pouring so that it can seep away in a targeted manner and does not run off uncontrollably above ground.

Planting the panicle hydrangea
To increase the permeability of the soil, the soil in the planting hole can be mixed with a little sand [Photo: ingae / Shutterstock.com]

If you want to put the panicle hydrangea in a planter on the terrace or balcony, When choosing a suitable bucket, make sure that the bottom of the vessel has a drainage hole owns. This ensures that excess irrigation water can run off and that no waterlogging occurs. A peat-free potting soil such as ours is suitable as a substrate Plantura organic potting soil very good. With its balanced nutrient composition, it offers your panicle hydrangeas the ideal conditions for vigorous growth and luscious flowers.

Maintain panicle hydrangea

Panicle hydrangeas are quite robust and undemanding compared to other hydrangea species. In addition to fertilizing and watering, annual pruning is recommended if you want to promote beautiful growth with lots of flowers or if you don't have a lot of space. How to cut panicle hydrangea, you can find out in our special article.

Fertilize panicle hydrangeas

Especially with potted hydrangeas, the nutrient supply should be replenished annually by means of spring fertilization. This gives the plant a good start into the growing season. Further fertilization can be carried out in summer. With this optimal supply of nutrients, nothing stands in the way of rich flowering. Choose a primarily organic fertilizer for panicle hydrangeas, such as ours Plantura organic hydrangea fertilizer with long-term effect. Typical deficiency symptoms and diseases of hydrangeas are prevented by the organic fertilizer. Work it lightly into the soil to increase its effectiveness. You can also put it under the layer of mulch so that it is well moistened and starts working quickly.

Attention: Hydrangeas tend to have shallow roots, so don't dig too hard underneath them or loosen the soil so as not to damage the roots.

Water panicle hydrangeas

Unlike most types of hydrangea, panicle hydrangeas can survive drier periods. However, in order not to expose them to unnecessary stress, you should always keep the soil around the plants moderately moist. Water regularly and make sure that the root ball never dries out completely. It is advisable to water the plants from below. This prevents water from getting on the leaves and flowers.

Propagate panicle hydrangeas

Panicle hydrangeas can be propagated from cuttings. To do this, cut off about 10 to 15 centimeters long, healthy and only slightly woody shoot tips without flower buds from the hydrangea between June and July. Remove all leaves except for the upper pair of leaves and place them in cultivation containers filled with substrate. A peat-free sowing soil such as ours is suitable as a substrate Plantura organic herb & seed compost outstanding. It is advisable to mix the seed compost with sand or perlite in order to increase the permeability and to achieve better rooting success. The cuttings are about 2 to 3 centimeters deep into the earth and lightly pressed. Keep the substrate continuously moist and make sure that the water reaches the cuttings as far below as possible. In a bright place without direct sunlight and at a temperature of around 15 ° C, they take root and grow into new hydrangea plants.

Shoot tips of panicle hydrangea
When the panicle hydrangea is propagated, approx. 10 cm long, non-flowering shoot tips cut as cuttings [Photo: Dyfrain / Shutterstock.com]

Hibernate panicle hydrangeas

Panicle hydrangeas are hardy. When buying your panicle hydrangea, make sure to choose robust plants from specialist retailers that have been well hardened. In addition, you should always use organic or mainly organic fertilizers. Mineral fertilizers endanger the frost hardiness of plants, especially if they are used too late in the year.

In the case of panicle hydrangeas in the bed, shallow roots can be covered with a light layer of mulch to protect them from frost damage. Hydrangeas planted in pots should be wrapped in jute bags, garden fleece or bubble wrap in winter to be on the safe side. With older panicle hydrangeas, protection in the lower area is sufficient, young plants should be completely covered to be on the safe side. Alternatively, panicle hydrangeas can also be placed in a light, protected winter quarters in winter. However, do not overwinter panicle hydrangeas too warm. A long-lasting cold stimulus is necessary so that the plant can successfully sprout again in the next growing season and form flowers.

tip: If Hydrangea paniculata is overwintered indoors, it should be slowly accustomed to the light again in the spring. Because if it is put outside from one day to the next and exposed to intense solar radiation, it can quickly suffer from sunburn.

If you would like to find out which bee-friendly shrubs are still available for the garden, we recommend our special article about the 15 most beautiful bushes for bees.

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