Contact Us Host an Event Volunteer Join

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
See a list of all Smarty Plants questions

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Monday - May 29, 2006

From: Ocala, FL
Region: Southeast
Topic: Non-Natives
Title: Height of non-native gardenias
Answered by: Nan Hampton

QUESTION:

How tall does a gardenia tree get?

ANSWER:

I assume you mean the Common gardenia (Gardenia jasminoides). It is a native of China and Japan introduced to North America as an ornamental. Its maximum height is 5-6 feet. It has a dwarf cultivar that reaches only 2-3 feet. There are also African Gardenia trees such as Gardenia thunbergia that reaches 16 feet and Gardenia volkensii, 26 feet. Hawaii has an endangered Gardenia (Gardenia brighamii), 20 feet, as well as several other species of Gardenia. In fact, there are some 250 species of Gardenia from Africa, Asia, Australasia and Oceania. There are no North American native Gardenias.
 

More Non-Natives Questions

Wrapping a newly planted non-native Japanese maple from Fraser MI
October 01, 2013 - Does a newly planted Japanese maple need to be wrapped in burlap for the cold and snowy winter of Macomb County, Michigan?
view the full question and answer

Wildflower Center work on non-native, invasive Bastard Cabbage from Austin
March 20, 2014 - Still have cabbage weeds that infiltrated Austin awhile back. How did Wildflower Center resolve it?
view the full question and answer

Care for non-native Basil
August 14, 2007 - One of my Basil plants has leaves that are curling (shriveling.) I see no insects on any of the leaves. The plant next to this one is growing beautifully. Both are in large pots and are in the sun....
view the full question and answer

Care of non-native house plant
December 09, 2007 - Please let me know how to keep a dieffenbachia plant healthy and growing. I notice some leaves turn yellow. I water them once a week and keep it on the windowsill with some sunlight. Should I be do...
view the full question and answer

Bark splitting on non-native Royal Poinciana in tree in Merritt Island FL
August 10, 2010 - Information on splitting bark along the branches like an overstuffed sausage: A royal Poinciana tree, about 5 years old. The upper branches are doing this, although I'm afraid little splits or tear...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.