Astilbe My Heart
This column appeared in The Landscaper in it's original form
Astilbe My Heart
By Laura Ann Harrington
False Spirea (Astilbe) is a statuesque perennial whose blossoms begin in June with the resounding testimony of a true garden staple. Worthy of all garden settings; Astilbes are summer’s true handmaiden. At April’s end coiled stalks emerge from cool spring soils like false fiddleheads. Covered with tender translucent hairs like a coat of whiskers, they reach back to leaf out around the end of the first week of May in obeisance to something much larger than all of us. Rich green and intense bronze foliage leaf out with the promise of June glory.
Following the spring progress of Astilbe persuades you to believe in the simple concept of garden trust. Trust in a plant so wonderfully useful that rises again and again with so little prompting. Faithfully submitting to unyielding conditions to perform so beautifully each summer, is indeed a declaration of this plant’s devotion.
False Spirea is at once a background plant and a foreground icon. It can serve as a jaunty ground cover, or round out a bouquet center piece (cut plumes when flowers are half open). A shady spot will reign in color when Astilbe are massed in the border.
The flowers form as open and airy plumes or plumes thickly packed with the star like flowers. The best way to keep Astilbe’s happy is to situate them in shady moist soil well-drained soil, with protection from afternoon sun. They can tolerate full sun, but will require more diligent watering and are pest free (including Deer!) and low maintenance. If the leaves burn at the margins, then re-site them in a shadier spot.
Unraveling the different species will help decide which Astilbe will serve you best.
Astilbe biternata (False Goats Beard) is a native woodland Astilbe, which can grow to five foot with a spread of 24”-30”. It has well branched flower plumes and blooms in June. It requires suitable shady spot. Check out out Astilbe biternata 'Bridal Veil' beautiful white plumes that bloom in June grows to 28" tall.
Astilbe chinensis – Chinese Astilbe is a later blooming species, good for carrying astilbe color into the end of July. Its foliage is deeply incised and coarse, and often bronze green in color. The flower panicles are narrowly branched. It is a good performer in moist soils, although it can be moderately drought tolerant. Try this shorter variety A. chinensis ‘Pumila’ as a great ground covers under trees.
Astilbe japonica (Japanese Astilbe) has an early bloom time (June) and glossy green leaves tinged with red and toothed. Its flowers are dense and in pyramidal clusters. There are tons of beautiful colors to choose from, like 'Peaches & Cream' soft light pin that mature to creamy white; 'Sister Theresa'- large salmon pink flowers.
Astilbe simplicifolia has glossy medium green leaves which are lobed and divided, it forms compact mounds. It sports airy flowers and has ornamental seed head structures that give additional garden interest. It is slow to establish, and can take up to three years to mature and is less drought tolerant. This species works well in containers and inter-planted with Japanese Painted Ferns. 'Darwin's Snow Sprite' is a favorite, it blooms later with clear white plumes over gorgeous dark green foliage; it looks great when planted enmasse.
Astilbe taquetii is an upright bloomer tightly branched and blooms in rose -lilac colors, it has medium green leaves. It blooms in July and August and grows to 42” tall.
Astilbe x thunbergii (Tall Japanese Astilbe) is a later summer bloomer with distinctive nodding flower clusters. It is a taller background plant with glaucous foliage. Good for grouping around a water feature. A. thunbergii ‘Ostrich Plume’ is a popular choice with pink flowers.
Extremely popular Astilbe x. arendisii hybrids boast of the most vibrant colored Astilbes to choose from. Developed by crossing several species, George Arends of Germany struck upon today’s most widely used cultivars. Blending A. chinensis var davidii strains with Astilbe astilboides and A. japonica and thunbergii, the results supply us with most of the astilbes you see on the market today.
And that is your Astilbe 101 crash course for today.
0 comments - Posted by Laura at 6:05 AM - Categories: Plant Profiles