Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Sunday - April 15, 2012

From: Washington , NY
Region: Northeast
Topic: Non-Natives, Propagation
Title: Growing non-native lettuce under artificial light from Washington NY
Answered by: Barbara Medford

QUESTION:

Which artificial light( UV LIGHT, FLUORESCENT LIGHT AND INCANDESCENT LIGHT) makes a lettuce plant grow the fastest over a time period of 3 weeks and what would be your variables( independent, dependent and control variables) and discussion to this experiment? Please answer this, Mr. Smarty Plants, as I need it for my science expo.

ANSWER:

While we would like to be able to help you with your science project, we are not qualified to do so for several reasons. First, we deal only with plants native to North America, which lettuce is not. Lactuca salvia (lettuce) was first grown by the Egyptians,  then the Greeks and Romans, and was brought to the New World by early settlers in the 16th and 17th Centuries.

The second reason we can't help you is that we work to help gardeners grow plants native to their area outside in the ordinary rainfall, sunlight, temperatures and soil. Growing any plant, even a native, under artificial conditions, is out of our expertise. Here is an article about growing lettuce from the University of Illinois Extension Program.

For more information, read Do Plants Grow as Well Under Artificial Light? from EarthSky. An article on Aeroponics, Understanding Light Energy for Plant Growth Aeroponic Systems has some graphs comparing different forms of light.

 

More Propagation Questions

Propagation of indoor plants for school project
January 28, 2008 - I have an assignment for school that requires that I get two indoor plants. One has to grow in water and one has to grow in soil. Each plant needs to grow at a fast pace, and at about the same pace....
view the full question and answer

Transplanting native yaupon into yard in Lowake TX
June 08, 2010 - I have lots of wild yaupon in my pasture,can I transplant it to the yard?
view the full question and answer

Failure of Viburnum dentatum to produce berries in Maryland
September 20, 2008 - I planted several Viburnum dentatum shrubs in a hedgerow for my yard. Although I have some other viburnums in the yard, this shrub blooms profusely but does not ever produce berries. What can I do t...
view the full question and answer

Grafting different colors of Tecoma from Casa Grand AZ
April 01, 2014 - Is it possible to graft different colors of tecoma and if yes, is the process same as process for grafting roses?
view the full question and answer

Transplanting trumpet creeper in Prairie City, IA
August 22, 2011 - I have a Trumpet Creeper that I would like to transplant. How do you do that?
view the full question and answer

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