Globeflower – Trollius

Splashes of yellow. The globeflower, with its delicate blooms in shades of yellow and orange, provides brilliant colour in a mixed display. Its many varieties do particularly well in a damp spot, and look stunning on the edge of a pond.

ANNUAL CALENDAR

SPRING

April:

Plant bare-rooted or container-grown plants in moist soil and in sun or partial shade.

Last batches of seed can be sown.

Propagate from mature plants by lifting, dividing and replanting the roots.

SUMMER

May-June: and hybrids like ‘Canary Bird’ and ‘Goldquelle’, come into bloom.

July: ‘Golden Queen’ and ‘Imperial

Orange’ are in full flower.

AUTUMN

September-October:

Propagate plants by dividing the roots. Sow seed in boxes of potting compost. Transplant seedlings from spring sowings of the previous year to final flowering positions. Plant bare-rooted plants.

WINTER

November-February:

Continue sowing seed in boxes of potting compost, undercover. Prick out (transplant) seedlings into a nursery bed outside from late spring, when they are sufficiently developed.

Remove flower-heads as they wilt, or cut the flowering stems of early varieties to the ground to encourage a second flush of blossom. In autumn, cut the stems back to ground level.

A DAMP SPOT IS BEST

As the globeflower’s roots must be kept moist, it thrives beside an ornamental pond or a garden stream. It does well in mixed herbaceous borders or in ‘island’ displays, contrasting against a green lawn, as long as it is watered abundantly in hot weather to prevent its roots drying out.

Growing from seed

Seed is slow to grow but is cost effective.

Sow September-April in boxes of potting compost.

Place in a cold frame (protective outdoor box) or unheated greenhouse to germinate.

Transfer seedlings to a nursery bed in late spring.

Set out in their flowering positions from October of the following year.

POPULAR VARIETIES ,

Name, Colour, Height (cm), Flowering period ‘Alabaster’, cream, 60, May-June ‘Canary Bird’, pale yellow, 60, May-June ‘Earliest of All’, yellow, 60, May-June ‘Golden Queen’, orange, 60, May-June ‘Goldquelle’, deep yellow, 60, May-June ‘Orange Princess’, orange-yellow, 75, May-June ‘Superbus’, pale yellow, 60, June-July

Trollius chinensis, ‘Golden Queen’, deep orange, 75, June-July ‘Imperial Orange’, deep orange, 75, June-July

Trollius pumihis, yellow, 15, May-June

G lobeflower belongs to the Ranun-culaceae family, which includes the common buttercup. Apart from differing size, the two blooms are very similar.

There are 25 species of globeflower. The most commonly grown garden varieties have been bred from T. europaeus, and tend to be grouped together under the name T. x citlto-rum. These hybrids reach 60-90cm with flowers 5-6cm across. They make excellent cut flowers.

Cultivating

Globeflower blooms prolifically if it is grown in the right conditions. Plant it in the spring or autumn, and choose the site with care; be sure that the plant has plenty of moisture. It does well in exposed gardens, for example by the sea, and will grow in sun or shade, if kept damp.

Globeflower can be grown from seed, although this takes time. Alterna¬tively, buy bare-rooted plants from specialist nurseries, usually by mail order, or container-grown plants from garden centres. They need enriched, moist, well-drained soil, with plenty of organic matter. Apply an organic mulch (ground cover) in spring.

The plant flowers in late spring and summer. It makes a good display as individual specimens do not spread out untidily.

Globeflower

SITUATION

Sun or partial shade, on the edges of streams or ponds, or in mixed borders. The roots need to be kept moist. Will grow in exposed gardens.

SOIL

Almost any garden soil, as long as plenty of humus (organic matter) has been dug into it to ensure good drainage.

CARE

Never allow plants to dry out in hot weather. Water well. Mulch (cover soil with organic matter) in spring. Remove dead flowers and cut the stems back to the ground in autumn.

PLANT HEALTH

The globeflower is occasionally attacked by smuts. These are parasitic fungi which produce unsightly crops of black spores on the leaves and stems of affected plants.

These spores then spread to infect other plants. If you detect these symptoms, destroy any infected leaves and spray the plants with a copper-based fungicide. It is also a good idea to spray healthy plants with this preparation as a preventive measure before they show any symptoms.

Sorry, comments are closed for this post.