The Seaside Daisy is a valuable rock garden plant for seaside gardening. Seaside plants like t Erigeron glaucus add color over long periods to your coastal garden. They have pretty purple aster-like flowers and grow easily in well-drained soils.
Erigeron glaucus is a superb plant for the seaside garden. You will also find them called Beach Daisies, Beach Aster or Seaside Fleabane. We use them a lot for rockeries, flowers beds, embankments or on top of stone walls. On top of that, they can be used for containers and pots.
They originate from North-America and have spread themselves over Europe where they have naturalized in coastal areas growing on cliffs, sand dunes, and beaches.
We mainly use a variety of the Seaside Daisy called Erigeron 'Seabreeze'. This variety has a nice compact growth with lovely pinky-mauvy daisy flowers. Their main flowering time is the spring but you will get a repeat flower during the summer and autumn.
Dead-heading will encourage more repeat flowering. The mounds of grey-green foliage set the flowers off really well.
Erigeron glaucus won't grow higher than 10 inches. Spread is approximately 1 ft across, sometimes larger. They like to form mats around rocks.
Other varieties with more pinkish flowers are Erigeron 'Roseus' or Erigeron Elstead Pink'.
Erigeron likes a well-drained, neutral soil. They grow well in sandy, dry soils. A moderately fertile soil is fine. Dead-head finished flowers to encourage more blooms. The plants can be cut back at ground level to encourage new foliage.
Erigeron glaucus makes a great plant for seaside gardening. Wind and salt spray won't affect this robust little plant. This makes them a very useful plant for coastal gardens and gardens with sandy soils.
Flickr Image by Laura Camp
Seaside Daisies can easily be propagated from stem cuttings. Cut some stems off at the base and remove the leaves at the base. Dip the base into rooting powder and insert them into a mix of sand and potting compost. Keep slightly moist until the plants have rooted. Then plant them on into a bigger container or into the ground. This is best done in early spring or late summer.
You can also divide the plants in early spring. Lift up the whole clump carefully with a spade and divide it into several pieces. Remove most of the stems during this process. Then replant the pieces in their new spots with some compost and water them in well.