Make a donation
Join the RHS today and support our charity
Read our latest features
Free access to RHS Gardens
and access to member show days
Reduced prices on RHS Garden courses and workshops
Books & Gifts
020 3176 5800
Mon – Fri | 9am – 5pm
Make a donation
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
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:
© RHS 2003
the RHS today and get 12 months for the price of 9
Other common names
glory of Texas straw spine cactus
Thelocactus bicolor var. bolaensis
Thelocactus are cacti with ribbed, spiny, globose or shortly cylindrical stems and large funnel-shaped flowers
T. bicolor is a cactus with usually solitary, ribbed globose stems to 20cm in height, bearing long reddish spines and funnel-shaped rosy-purple flowers to 8cm across
Texas to Mexico
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
pHAcid, Neutral, Alkaline
Time to ultimate height
Grow under glass in a standard cactus compost in full light with low humidity. Water moderately in summer and apply a liquid fertiliser 2-3 times. Keep dry in winter
Propagate by seed or offsets
Suggested planting locations and garden types
Patio & Container Plants
Pruning No pruning required
Pests Mealybugs may be a problem
Generally disease free
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
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.
Like this page on facebook
Click on the Tweet button below to compose your tweet.
Join the RHS today and get 12 months for the price of 9