En Español

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?


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
1 rating

Wednesday - July 11, 2007

From: Austin, TX
Region: Southwest
Topic: Propagation
Title: Propagation of Passiflora lutea by seed
Answered by: Joe Marcus


How long does it take to germinate yellow passionflower vine seeds? Where can a vine or seeds be purchased? What would they cost?


We are big fans of propagating plants as nearly as possible to the way nature does it. In the case of Passiflora lutea (yellow passionflower), direct sow the seeds of the plant in the fall where you would like for the plant to grow. You will probably see better germination if you remove the seeds from the fully-ripe fruit before sowing them. In nature, wildlife would provide this service. After removing the seeds, let them dry for a few days and sow them on raked and smoothed earth. Barely cover them with soil and mulch lightly with leaf litter. Gently water in. The seeds should germinate the following spring. Yellow passionflower wants to grow where it has some shade -- especially in the afternoon, and where it has something to climb on.

The Lady Bird Johnson Wildflower Center occasionally offers Passiflora lutea plants at its October and April plant sales. Please check our website shortly before the sale for availability. The price of a plant in a 4" pot at our last fund-raising sale was $2.50. Not many nurseries would offer this plant as its flowers are not as showy as some other passionflowers and consequently there is little demand for it. We know of no commercial seed sources for yellow passionflower local to you (Central Texas).


From the Image Gallery

Yellow passionflower
Passiflora lutea

More Propagation Questions

Planting Artemisia Cuttings in Texas
September 29, 2014 - I've rooted a number of artemisia plants in water and have transplanted them to pots. They grow so very well in our dry drought-stricken soil and need very little water. I'd like to transition these...
view the full question and answer

Starting desert willow from seeds
September 21, 2008 - Is it better to sow or start desert willow seeds in pots? If sowing is effective, is fall or spring the best time to sow in the Canyon Lake area of Central Texas?
view the full question and answer

Moving plants for extreme drought from Greencastle IN
August 23, 2012 - In exceptional drought here in Indiana, I am looking at weeds that may become my next perennials! How do I move what my dad called ragged robins from the edges of roads. They are blue and could be wil...
view the full question and answer

Transplanting Indian Paintbrush in Corona CA
November 05, 2013 - I have a very mature Indian Paintbrush Plant that was becoming too large for the area I had originally planted it in, so I transplanted it to an area much more suited for its size. I reviewed the que...
view the full question and answer

Dividing Hesperaloe
December 09, 2015 - How and when can I successfully separate a clump of Hesperaloe Parviflora into smaller bunches?
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
© 2016 Lady Bird Johnson Wildflower Center