Some astilbes can be tall, very tall. Other astilbes stay close to the ground. Most varieties like it somewhere in between. The genes determine the possible height. With optimal care, the gardener can only promote growth.
How tall does the astilbe grow?
Depending on the variety, the Astilbe grows10 to 200 cm high. Dwarf astilbes remain the lowest at 10 to 25 cm. The High Astilbe reaches its maximum height of 2 m. The most popular hybrid breeds are between 60 and 120 cm.
What heights can the astilbe reach?
The astilbe genus, which comes from the saxifrage family (Saxifragaceae), includes around 30 to 35 species. The genes of each species determine the maximum height, which can vary between 10 and 200 cm. Thedifferencesin height areamong species as well as within a species. The most common in this country are the Chinese spar (Astilbe chinensis), the Japanese spar (Astilbe japonica) and the cultivated hybrid varieties Arendsii.
Which astilbe grows tallest?
Among the cultivated varieties known in this country,the High Astilbe (Astilbe chinensis var. davidii) is the largest. Depending on the location, care and weather in the current year, its shoots can grow up to 2 m high, but in any case 1.5 m. During the flowering period, it can “look into the owner’s eyes” with its flower spikes.
Which astilbes grow to medium height?
Height values from 50 cm to around one meter can be described as medium high.most of the varieties offered are in this range, as the heights are visually optimal for the bed. There are medium-sized Chinese and Japanese sparrows. However, these are predominantly colorful varieties from the Arends nursery. Among others, these varieties are medium high:
- Astilbe x arendsii 'Germany': 50 cm
- Astilbe x arendsii 'Glut': 60-80 cm
- Astilbe 'Mighty Chocolate Cherry': 1 m
- Astilbe x arendsii 'Amethyst': 1m
At 1.2 m, the Astilbe Thunbergii 'Prof. van der Wielen' a little higher, but still in high demand.
Which astilbes are low growing?
The Chinese splendors have theDwarf astilbe, also called carpet astilbe. Butother species also have one or another low variety. A few examples:
- Astilbe glaberrima var. saxatilis: approx. 10 cm
- Astilbe crispa 'Perkeo': 15-20 cm
- Astilbe chinensis var. pumila: 25-30 cm
- Astilbe simplicifolia 'Aphrodite': 30-40 cm
- Astilbe japonica 'Younique Ruby Red': 40 cm
- Astilbe simplicifolia 'Sprite': up to 50 cm
Low varieties are ideal as ground cover for shady to semi-shady locations.
Tip
Achieve the maximum possible height with optimal care
When the Astilbe, which originally comes from East Asia, suffers from drought, its leaves curl up and growth stops. In addition to fertilizing in spring with a slow-release fertilizer, constant water supply is crucial so that it grows as tall as its genes allow.
