Plant of the Month – June 2024

Corydalis ‘Blue Heron’

Blue-flowering beauties hold a cherished place in the hearts of many a gardener. They standout from the typical greens, reds, yellows, and pinks seen across the garden – this Corydalis ‘Blue Heron’ is an absolute beauty!

Few boast as an electric blue colouring in summer as the delights of Corydalis ‘Blue Heron’, even enhanced with stark contrasting red stems – hence why we’re happy to bring it to you as our ‘Plant of the Month’ for June!

Looking for that ‘wow’ factor this year? Then this is the one for you!

Exciting and bountiful, with flower power for the ages! Unlike many other Corydalis, which can recede after flowering in spring, ‘Blue Heron’ just seems to keep going, regularly impressing until autumn is ready to begin. Simply cut back spent blooms in summer to potentially encourage a second flurry of flowers later in the growing season.

The deep blueish evergreen foliage forms in neat clumps, giving rise to stems tinged in red, which bear the headline, and outstandingly stunning, blue tubular flowers that dangle above the leaves in their masses, each accented with white throats.

If the beauty of these perennials doesn’t attract you, the soft and natural floral aroma may, as it sits on whatever gentle summer breeze floats into the garden.

‘Blue Heron’ remains neat and compact as it grows, so is an idyllic candidate for border or bed fronts, as a natural edge. Plus, it is a delightful gap-filler or ground cover solution, filling those empty spots and spaces with style.

Tempted to grow Corydalis ‘Blue Heron’ for yourself? Buy here either as potted, established plants, or as jumbo plugs.

Caring for Your Corydalis

  • Your Corydalis may fall dormant in very dry summer conditions, so be sure to keep it well watered.
  • Best grown in humus-rich, moist but well-drained soil in a shaded position, avoiding any overly exposed locations. This variety will grow well in a sunny border, if watered regularly to stop it from becoming dormant in summer.
  • As the plant dies back, the leaves will yellow and the stems will wither.  Cut them down to ground level to potentially make way for a second flush later in the growing season.
  • When new growth emerges in spring, add a slow-release fertiliser to the soil to encourage a longer blooming period. Continue to feed and water throughout the growing season.
  • Look out for slugs and snails, as they will eat the young leaves.
  • Propagate by dividing in autumn.

Are you growing Corydalis ‘Blue Heron’ in your garden? Share a picture of it with us here!

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