Native Plants
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.
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
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.
rate this answer
Monday - October 30, 2006
From: Austin, TX
Region: Other
Topic: Non-Natives
Title: Student project on non-native bush snap beans
Answered by: Nan Hampton and Joe Marcus
QUESTION:
I am doing a science project for school that involves bush snap beans. For my research I am required to have at least one interview with a professional on plants. I was hoping that you would be able to answer a few questions for me. 1) If grown inside, around what temperature do plants (bush snap beans) grow the best? 2) How often should I water the bush snap beans? 3) What soil type (for bush snap beans) should I use? 4) If they start to grow mold, should I scrape it off or just leave it? 5) Do the plants need a breeze, like an open window or slow fan? 6) Is florescent light a suitable light source? (My project is actually, What is the effect of pre-germination variables on plant growth? so if you have any ideas on interesting pre germination variables or any tips that might help with my project that would be great, too.)ANSWER:
First of all, the bush snap bean, Phaseolus vulgaris, is a domesticated version of a South American species. Our focus and expertise at the LBJ Wildflower Center is on plants native to North America, but we will answer your questions as best we can.1. Optimum temperatures for growing the bush snap bean is approximately 65-80 degrees F.
2. Water when the soil just begins to look dry. How often this is will depend on the temperature and how much air is circulating.
3. Commercial potting soil will work fine as long as it includes sand, peat moss, vermiculite or some other substance to enhance drainage and keep the soil from compacting.
4. They shouldn't grow mold if you don't over water them and there is some ventilation.
5. It is desirable to have some movement of air whether from an open window (depending on the outdoor temperature) or a fan. Moving air will help prevent fungus from attacking your seedlings by eliminating standing water on plant surfaces. Ventilation will increase the amount of oxygen and carbon dioxide available for the plant and will increase transpiration, thus moving more water and nutrients through the plant. However, you will probably want to adjust the movement of air so that it doesn't dry your plants too rapidly.
6. Fluorescent light, especially the ones known as cool-white tubes, will work for growing plants indoors. The University of Missouri Extension Service has a very good article about lighting for indoor plants.
As for variables, one thing that could be easily quantified is the amount and/or frequency of watering. For this you would need:
a. identical-sized pots,
b. for the soil you add to be weighed and identical for each pot,
c. each plant to receive the same amount of light and
d. all plants be kept at the same temperature.
In other words all conditions would need to be identical for the plants except the watering regimen. It should be simple to vary the amount and/or frequency of watering. Perhaps you could give the plants the same amount of water, but for one treatment give it all on one day and then wait 3 days to give it the same amount again. For another treatment, divide the same amount of water into 3 applications given over three days. There are an infinite number of combinations of watering periods and applications that you could consider.
More Non-Natives Questions
Freeze damage to my Norfolk Island Pine in Houston, TX
March 18, 2010 - Houston, Texas experienced a rare 3-day snow event this winter that allowed snow to stay on my 20 ft. Norfolk Pine, in the ground for over 10 yrs. Every branch is now brown with all dead foliage. I ha...
view the full question and answer
Differences between Desmodium and Lespedezda
June 19, 2014 - i am trying to determine the difference between lespedeza and desmodium in my full sun wildflower and tall grasses meadow. There appear to be a number of different types of these plants, and they are...
view the full question and answer
Non-blooming crape myrtle in Italy, TX
June 25, 2008 - It's Italy, TX, again! Thanks for the advice and links, and I'll study those..but here's where I'm stumped on crape myrtle. I have two (almost) trees because they've been planted over 15 years ...
view the full question and answer
Replacement of Arizona ash in Austin
October 28, 2011 - We have two Arizona Ashes in our yard that probably have maybe a decade left in them. We want to get a couple new trees started, so they will be well established once the Ashes are near their end. In ...
view the full question and answer
Growing non-native grapefruit from seeds from Austin
April 30, 2013 - Can you grow ruby red grapefruit trees from seeds?
view the full question and answer
| Support the Wildflower Center by Donating Online or Becoming a Member today. |