2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
Diervilla (lat. Diervilla) - genus of flowering plants of the subfamily Dierville family Honeysuckle. The genus includes only three species naturally occurring in North America. The genus got its name in honor of the French surgeon Maren Dierville.
Common types and their characteristics
* Diervilla sessilifolia (Latin Diervilla sessilifolia) - the species is represented by densely branched shrubs up to 2 m high with characteristic tetrahedral shoots. Leaves are short-petiolate, elongated-ovate, with serrated edges and a drawn-out tip. The flowers are yellow, small, collected in umbellate inflorescences. The fruits are woody bolls. Seeds are small, ovoid. Diervilla sessile-leaved blooms in July-August, the fruits ripen in September-October.
* Diervilla brook (lat. Diervilla rivularis) - the species is represented by shrubs up to 2 m high with rounded densely pubescent shoots. Leaves are short-petiolate, oval-lanceolate, up to 8 cm long. Flowers are yellow, collected in multi-flowered panicles. Diervilla brook blooms in July - August. Some varieties of the species are distinguished by increased decorativeness.
* Diervilla honeysuckle (Latin Diervilla lonicera) - the species is represented by shrubs up to 2 m high with large oval-oblong leaves. The flowers are yellow, collected in few-flowered inflorescences. Corolla petals are narrow, bent upward. The fruit is a capsule narrowed towards the top.
Growing conditions
Dervilla is hygrophilous. It is undemanding to soil conditions, it accepts almost any soil. Prefers partial shade over open sun areas. Diervilla can be grown under the canopy of trees with an openwork crown.
Reproduction
Diervilla is propagated by seeds, cuttings, layering and root suckers. The simplest and at the same time effective way is reproduction by root suckers, which are formed in large numbers annually. In the spring, the offspring are separated from the mother plant and transplanted to a permanent place.
Reproduction by layering is also encouraged. Getting planting material is not at all difficult. To do this, the lower shoots are laid in the grooves, covered and watered regularly. The following spring, the rooted layers are separated from the mother plant with a shovel and transplanted to a new location.
The seed method is quite laborious and time consuming. Sowing is carried out in the spring. To accelerate seed germination, a three-month stratification is carried out. Dervilla seedlings are transplanted to a permanent place after 2 years.
Landing
It is recommended to plant the deervilla in the spring. Planting pits are prepared at least two weeks before the intended planting. The depth of the pit should be about 40-50 cm, diameter - 40-45 cm. At the bottom of the pit, a hill is formed from fertile soil mixed with sand and humus in equal proportions.
The roots of the seedlings are shortened before planting with a secateurs. After planting, abundant watering and mulching of the near-trunk zone are carried out. For mulching, you can use both organic and artificial material.
Care
Standard care: watering, weeding and loosening, pruning and feeding. Pest and disease control as needed. Thinning pruning is especially important for deervilla, it consists in removing thickening shoots. Top dressing is welcome. Two dressings per season will be enough.
