About this cultivar:
Aster amellus 'Silbersee' is a lovely silvery lavender blue aster - the name translates as 'Silver Lake'. Quite short. Was awarded Royal Horticultural Society Award of Garden Merit in 2016.
The species is native to Europe, particularly mountainous areas, it tends to have a tough compact habit. The specific name amellus is first used in the Georgics (Book IV, 271-280), a poem of the Latin poet Publius Vergilius Maro (70 BC - 19 BC), but the etymology is obscure and uncertain. Thus amellus is the the Latin for Aster, so it sort-of translates as Aster aster.... common name is Italian Aster, so stick to that.
This Italian species is more drought tolerant than most Asters. One theory is the species name apparently comes from the River Mella, an Italian tributary of the River Po. Now quite rare in the wild, it can sometimes be found throughout central France, northern Italy, the Czech Republic and the Caucasus. Since Greek and Roman times the essence of Aster amellus was used medicinally for a variety of inflammatory ailments (possibly why it became rare).
- Position: Full sun, partial shade
- Soil: Almost any soil
Flowers: August, September, October
Other features: Royal Horticultural Society Award of Garden Merit (RHS AGM)
- Hardiness: H7 - Hardy in the severest European continental climates (< -20°C)
- Habit: Bushy, Clump forming
- Foliage: Deciduous
- Height: 30 - 60 cm (1 - 2 ft)
- Spread: 30 - 60 cm (1 - 2 ft)
- Time to full growth: 2 to 5 years
- Plant type: Herbaceous Perennial
- Colour: Blue, yellow, green
Goes well with: Early flowering plants (like Lupins, Delphiniums and Papaver) in order to keep interest in that area once the earlier flowering plant has faded. However they also pair well with flowers such as Amsonia, Aolidago, Rudbekia, Helenium, Helianthus, and grasses such as Stipa. We have also experimented with Sedum, Astrantia and even Crocosmia.
About this genus:
Aster is Greek for star and, because they flower late in the season, Asters are the garden equivalent of the stars that come out late at night. As wonderful herbaceous perennials that tend to flower in the cooler colours of blue, pink, purple, and even white they can lend a different feel to the traditional bright, rich, red-yellow-orange colours of late summer and autumn. At a time when other plants of similar colours are dying back Asters can be guaranteed to provide a another blast of colour. Another reason they offer more than the average plant because their attractive buds are a feature long before they begin to flower. Oh, AND they make good cut flowers. Keep them cool and they can last over two weeks in a vase.
Asters can grow in almost any soil and situation although most do best in full sun and some species like Aster divaricatus like shade. Many Asters can tolerate drought much better than wet. At Ballyrobert their flowers always seem to be teeming with butterflies and other creepy crawlies – perhaps because they are one of the few flowering plants around late in the season.
You may hear that Aster novae-angliae ( New England asters) and Aster novi-belgii ( New York asters) will suffer from leaf drop and mildew in dry conditions. In our garden, this has rarely been the case even with cultivars with didn't think are good enough to keep or sell. I suspect people just copy-and-paste from gardening books originating in dryer areas of the world such as Kent and parts of America- in our part of the world I doubt we'll ever have the same drought issues!
We also never have any problems with staking, which always seems to be mentioned regarding Aster; perhaps because we tend to plant them close to or through other plants that lend them some support.
We think every garden should have space for Aster – they can be used in a variety of ways. Commonly they are put beside early flowering plants (like Lupins, Delphiniums and Papaver) in order to keep interest in that area once the earlier flowering plant has faded. However they also pair well with flowers such as Amsonia, Aolidago, Rudbekia, Helenium, Helianthus, and grasses such as Stipa. We have also experimented with Sedum, Astrantia and even Crocosmia (see photos).
Paul’s Odd Opinion: Many of the blue Asters have a neon electric-blue glow at night that reminds me of the Miami Vice TV show (I am working on a good photo to show this – in the meantime look at the logo!).