Keep track of your plants with reminders & care tips – all to help you grow successfully
My plants
My calendar
My ideas
My advice
For the latest on RHS Shows in 2021, read more
North Yorkshire
Essex
Devon
Surrey
Greater Manchester
General enquiries 020 3176 5800 Mon – Fri | 9am – 5pm
Help us achieve our goals
Make a donation
We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.
When using this search
Search by plant name, key attributes or both to find plant details and a list of suppliers.
AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
Join the RHS today and get 12 months for the price of 9
Other common names crimson flag lily 'Major'
Synonyms Schizostylis coccinea 'Gigantea' Hesperantha coccinea 'Grandiflora'
Schizostylis coccinea 'Grandiflora' Hesperantha coccinea 'Gigantea' Schizostylis coccinea 'Major' Schizostylis coccinea Hesperantha grandiflora
Family Iridaceae
Genus Hesperantha are semi-evergreen, rhizomatous perennials with narrowly sword-shaped, erect leaves and spikes of starry or bowl-shaped flowers from late summer to late autumn
Details 'Major' is a vigorous clump-forming perennial to 60cm in height, with grassy light green leaves and erect stems bearing lax spikes of up to 10 crimson-scarlet flowers 5-6cm in width, from late summer
Foliage Semi-evergreen
Habit Clump-forming
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H4
Full Sun
Aspect South-facing
Exposure Sheltered
Chalk
Clay
Loam
Sand
MoistureMoist but well-drained
SoilChalk, Clay, Loam, Sand
pHAcid, Alkaline, Neutral
Ultimate height 0.5-1 metres
Ultimate spread 0.1-0.5 metres
Time to ultimate height 2-5 years
Cultivation Grow in moderately fertile, moist but well-drained soil in full sun. Shelter from cold drying winds; provide an organic mulch in winter
Propagation Propagate by division in spring
Suggested planting locations and garden types Cut Flowers Low Maintenance Flower borders and beds Gravel Garden City & Courtyard Gardens Patio & Container Plants Mediterranean Climate Plants
Pruning Deadhead to prolong flowering, cut down stems after flowering
Pests Generally pest free
Diseases Generally disease free
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
crimson flag lily 'Major'
Buy from £8.99 at the RHS Plants Shop
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.