Join the RHS today and support our charitable work
Free personalised gardening advice
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Free entry to RHS members at selected times »
Reduced prices on RHS Garden courses and workshops
020 3176 5800
Mon – Fri | 9am – 5pm
Help us achieve our goals
Join the RHS today and support our charity
I have forgotten my password
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
See what events are on near you and browse your bookmarked pages.
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
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.
the RHS today and get 12 months for the price of 9
Other common names
sword lily 'Robinetta'
Gladiolus are cormous perennials with fans of sword-shaped or linear leaves and spikes of funnel-shaped flowers
'Robinetta' grows to around 50cm and in early summer produces rich-pink flowers with a narrow cream splash on the lower petals
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
SoilSand, Chalk, Loam
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow gladioli in fertile, well-drained soil in full sun. Plant corms 10-16cm deep in spring. If the soil is not perfectly drained, plant the corms on a bed of sand. When the flower spikes reach one third to half their final height, feed with a potassium-rich fertiliser such as a tomato feed. Repeat every 10-14 days until three weeks after flowering. In areas where there is frost, lift the corms when the foliage has turned yellow-brown. Snap the stem off the corms and dry the corms off for 14 days and keep the new corms dry and frost-free until planting time
Separate cormlets when lifting in autumn
Suggested planting locations and garden types
Flower borders and beds Cut Flowers
City & Courtyard Gardens Coastal Cottage & Informal Garden Patio & Container Plants
Pruning Snap off old stems from the corms when lifting them for winter storage
Pests Thrips, aphids and slugs can affect gladioli
Gladiolus corm rot and grey moulds (botrytis) can sometimes cause problems
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
sword lily 'Robinetta'
Buy from £4.99 at the RHS Plants Shop
We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.