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.
Give the gift of RHS membership
Other common names pale yellow-eyed grass yellow Mexican satin flower
Synonyms Phaiophleps nigricans
Family Iridaceae
Genus Sisyrinchium can be annuals or rhizomatous perennials forming a clump of narrowly sword-shaped leaves with erect stems carrying solitary or clustered, star-shaped or bell-shaped flowers in spring or summer
Details S. striatum is a clump-forming perennial, to 80cm tall, with fans of grey-green, narrow, linear to lance-shaped leaves. In summer, stiff, upright stems carry clusters of pale yellow, star-shaped flowers along their length
Plant range Argentina, Chile
Foliage Semi-evergreen
Habit Bushy
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 or East-facing or West-facing
Exposure Exposed or Sheltered
Chalk
Loam
Sand
MoistureMoist but well-drained, Well-drained
SoilChalk, 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 Grows best in sun in a well-drained, moist soil. Dislikes wet winters and excessively cold temperatures
Propagation Propagate by seed or by division
Suggested planting locations and garden types Flower borders and beds City & Courtyard Gardens Gravel Garden Cottage & Informal Garden
Pruning Remove old, blackened foliage after flowering
Pests Generally trouble free
Diseases Generally trouble free
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
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.