Join the RHS today and support our charitable work
Keep track of your plants with reminders & care tips – all to help you grow successfully
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
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
Iron Cross begonia
Begonia can be annuals, evergreen or deciduous perennials or shrubs, with fibrous, tuberous or rhizomatous roots and usually asymmetrical leaves, often strikingly patterned, and small or large flowers, both male and female in the same cluster
B. masoniana is a rhizomatous evergreen perennial to 45cm, with large, ovate, rough-textured green leaves, marked in the centre with a dark brown cross-like zone. Small greenish-white flowers in erect panicles
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect South-facing or West-facing or East-facing
SoilLoam, Chalk, Sand
pHAcid, Alkaline, Neutral
Time to ultimate height
Grow under glass or in a frost-free enviroment. Mainly grown for foliage effect. See Begonias: houseplants for further advice.
Propagate by seed, leaf cuttings or sections of rhizome
Suggested planting locations and garden types
Sub-tropical Patio & Container Plants
Pruning No pruning required
Pests Can get caterpillars, mealybugs, tarsonemid mite, thrips, vine weevil and aphids
May be infected by powdery mildews
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.