August Plant of the Month | Leucanthemum x superbum


Leucanthemum x superbum | Shasta Daisy

Leucanthemum have had a recent resurgence of popularity. This is likely thanks to exciting new varieties becoming available. Leucanthemum x superbum, also known as Shasta Daisy, is a hybrid version that is by no means new, having first been developed in the 1890s. But some new fantastic varieties are bringing great value to the garden, developed to be more compact and to offer repeat flowering. The big, bright flowers of leucanthemum are produced all summer in white, cream and yellow shades. Their flowers are loved by pollinators and are also a popular choice as a cut flower.

Leucanthemum x superbum Varieties

The Leucanthemum x superbum ‘Real’ Collection is one to look out for. Flowers in this range are extremely floriferous and robust, bringing unique flower form to the summer and early autumn garden.   

Leucanthemum x superbum ‘Real Charmer’  

Leucanthemum x superbum ‘Real Charmer’ is a hardy, clump-forming perennial with dark green foliage. Large, fringed blooms of pale lemon-yellow to cream are produced in summer. A great variety to bring colour to a mixed or herbaceous border. 

Flowering time: June to September

Sun Requirements: Full sun 

Soil: Well-drained soil 

Hardiness: Fully hardy, usually to -15°C 

Size: Grows to 50cm height x 40cm spread


Leucanthemum x superbum ‘Real Glory’  

Leucanthemum x superbum ‘Real Glory’ is a hardy, clump-forming perennial with compact dark green leaves. The semi-double, pale-yellow flowers gradually fade to cream when produced from summer into autumn. Offers great colour for mixed and herbaceous borders.

Flowering time: June to September

Sun Requirements: Full sun

Soil: Well-drained soil

Hardiness: Fully hardy, usually to -15°C 

Size: Grows to 70cm height x 40cm spread


Leucanthemum x superbum ‘Real Neat’  

Leucanthemum x superbum ‘Real Neat’ is a hardy, clump-forming perennial with dark green foliage. It produces large blooms in summer through to autumn. These have rows of horizontal white petals, which gradually reflex to expose an ever-enlarging frilly, yellow domed centre. Ideal for bringing colour and interest to beds and borders. 

Flowering time: June to September

Sun Requirements: Full sun

Soil: Well-drained soil

Hardiness: Fully hardy, usually to -15°C 

Size: Grows to 45cm height x 45cm spread


Leucanthemum x superbum Growing Guide

Leucanthemum are robust and generally disease-free perennials that will give months of beautiful flowers with just a little care and reliably return year after year.

Planting

Plant leucanthemum in a spot in full sunshine for best flowering, in moist but well-drained soil. Make sure the top of the root ball is level with the surface of the soil when placed in the hole. Water thoroughly. 

Deadheading

Deadhead regularly to encourage repeat flowering. Cut back stems to the base once flowering has finished in autumn. They will then start to emerge again in early to mid spring.


Planting Ideas

Plant together in the border with other summer-flowering perennials that offer a contrast of height and form, such as verbena, penstemons and nepeta.


Leucanthemum x superbum Fact

The common name for Leucanthemum x superbum, Shasta Daisy, is in reference to the volcano Mount Shasta in California. The petals on the original flower variety were thought to be the colour of the snow on its peak.