Now is the season of the colour blue. It is easy to be spell-bound by this colour particularly the deep blue of our native bluebell which en mass seems to shimmer and transport us to another world.. Wanstead Park in east London has been excelling itself. Here the native bluebell still thrives but around the edges and especially in nearby gardens are signs of the encroaching Spanish Bluebell. To find out more about why the Spanish Bluebell threatens the native one and how to distinguish between the 2 species follow this link:
Then get out the glyphosate and seek and destroy the Spanish one!..I love almost all things Spanish, honest, just not the Spanish Bluebell which looks, and is, thuggish in comparison.
Now I’ve had my rant..back to seasonal blues: An early spring blue which is now just about over is the brilliant ground cover, front of border, Pulmonaria ‘Blue Ensign’. It is a lungwort but unusually does not have the spotted leaves of the wild one. The flowers are an intense electric blue, wonderful with yellow daffodils.
Ceanothus is now having its moment. In particular the deep rich blue of Ceanothus concha and the huge C. arboreus ‘Trewithen Blue’ which rapidly grows into a tree if you turn your back (the word ‘arboreus ‘ in its name is the key) and C.thysiflorus ‘Skylark’ . They hang over the walls of front gardens grabbing attention for a few, all too brief, weeks. People stop and stare almost in disbelief that nature can produce such an intense colour blue!
For more on Ceanothus varieties: http://apps.rhs.org.uk/advicesearch/profile.aspx?pid=354
Blue and deep pink are a great combination. Other favorite combinations: blue with orange tulips (eg. Tulipa Ballerina) , blue with limey green (eg Euphorbia x martinii)