The common names of plants often reference other plants. For example, the ‘tulip tree’ (Liriodendron tulipifera). Not only do its generous waxy cream goblets resemble tulips, its uniquely shaped leaves with their truncated upper edges remind me of stylised versions of the flower. And this weekend I came across the ‘snowdrop tree’ on Instagram, Halesia Carolina, whose snowy white bells are reminiscent of the blooms of its namesake.
Another tree whose flowers resemble another species, and which is in glorious flower at the moment, is the foxglove tree, Paulownia tomentosa. Four examples of the tree occupy a corner to the right of the Garden House in Mrs Child’s Flower Garden at Osterley, one of which stands slightly apart from the others, behind the wall in the section of the garden where stands the unusual species of strawberry tree, Arbutus madrona, which I featured in my blog dated 17 April 2019.
Like foxgloves, the tree’s petals are a fleshy tubular shape with a flared rim to entice pollinators. Approximately 5cm long, the mauve flowers are topped by exquisite tan calyxes, like suede jackets shrugged over elegant pastel ballgowns.
When after a heavy shower last week I picked up one of the many flowers which the rain had loosened onto the ground beneath the tree, I detected a strong violet scent. The ripened seed cases are almost as attractive as the flowers themselves, being egg-shaped capsules containing numerous winged seeds. When driving along the busy Chertsey Road (A316) the other day I noticed Paulownia trees lining part of the carriageway, presumably indicating a toughness and resistance to pollution belied by their flowers’ delicate appearance.
I read that the tree originates from Eastern Asia, notably China, Japan and Korea. And whilst it is an introduced species in Europe and the USA, it was interesting to note that fossilised Paulownia tomentosa leaves have been found in Washington State. The name Paulownia was given by the German botanist Philipp Franz von Siebold in honour of Anna Pavlovna, 1795-1865, daughter of Tsar Paul I and wife of William II of the Netherlands: hence the tree’s other common name, the Princess tree. The image above demonstrates why the species epithet ‘tomentosa‘ meaning ‘covered in hairs’ is so apt.
Shades of mauve and purple are prevalent in gardens this month as shown in the images which follow. From left to right: Cerinthe major ‘Purpurascens’; Centaurea montana; Lavandula stoechas; Allium ‘Purple Sensation’.