Globularia plants are evergreen hardy perennials that range from 10 to 60 cm in height.
A commonly grown member of the genus grown by gardeners is the Globe Daisy.
They bloom in spring to the start of summer; with some encourage they may bloom a second time in the autumn.
When in bloom they carry small globe shaped flowers that are usually blue.
Photographs: Globularia alpyum by Granovetter and Globularia cordifolia (Heart-leaved Globe Daisy) by Roberto Verzo.
Common Names: Globe Daisy.
Life Cycle: Hardy perennial.
Height: 4 to 24 inches (10 to 60 cm). Mat forming.
Native: Europe, North Africa, Southwestern Asia.
Growing Region: Zones 5 to 9.
Flowers: Late spring through to early summer; further blooming possible through to autumn.
Flower Details: Blue; brighten in the summer. Round. Fluffy. Dense.
Foliage: Evergreen. Leathery. Oval.
Sow Outside: Surface. Start of spring - before the last frost, or towards the end of autumn. Spacing: Small 4 to 8 inches (10 to 20 cm); Large 12 inches (30 cm).
Sow Inside: Germination time: one week to two months. Temperature: 55°F (13°C). Light. Mix seeds in a moist growing medium, place in a freezer bag, then stratify by refrigeration for three weeks. Sow imbibed seeds seven or eight weeks in advance. Transplant outdoors following the last frost.
Requirements and care: Full sunlight or partial shade. Good drainage. Soil pH 5.5 to 7.0. Moist soil. Regular watering. Occasional feed. Tidy dead leaves and flowers. Propagate: by dividing in the spring in cooler areas or the autumn in warmer areas.
Globularia members such as Globe daisy can be sown outdoors in either late autumn or the start of spring. They should be sown on the surface. Globe daisies are able to grow successfully in sunny and partially shaded areas and prefer a moist soil of pH 5.5 to 7. The spacing is species dependent; sow small Globularia species 12 to 20 cm apart; and larger Globularia varieties about 30 cm apart.
If starting off indoors, you should first chill Globularia seeds in the fridge, within soil (in a bag) for three weeks. Sow them about a month and a half in advance. It should take from one to seven weeks for Globularia to germinate in the light at about 12 degrees centigrade. Transplant them into the garden a week or so after the last chance of a frost.
As globe daisies and other Globularia plants like a moist soil it is best to water them on a regular basis. They also require an occasional application of fertilizer. Once flowering has finished cut back to encourage a second bloom in autumn. If you require more globe daisies then propagate by division in the spring.
I hope that you enjoyed this guide on how to grow Globularia plants. Updated September 2020.