Rent Shop 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
9 ratings

Wednesday - July 22, 2009

From: Winston-Salem, NC
Region: Southeast
Topic: Transplants, Wildflowers
Title: Can I Divide Rudbeckia in July in NC.
Answered by: Anne Bossart

QUESTION:

How do I transplant Blackeyed Susans so I can add them to other parts of the bed. I started with one and it is crowding out other plants, so I would like to transplant to other parts of the yard.

ANSWER:

It is too late in the season to divide and transplant perennials now.  Many perennials can be divided in the spring or fall but others have a preference. Rudbeckia preferes to be divided in the spring.  Because Black eyed Susan's seed heads add such great fall and winter interest in the garden in a place where they are not covered up with snow, you will want to wait until spring anyhow.

They are quite easy to divide and you will be blessed with Rudbeckia for the rest of your days.  When it is time to divide them, digging up the whole plant, splitting it and re-planting is the best method as it rejuvenates the plant and gives you the opportunity to pick out any weeds or grass that have managed to get established in the center.  Alternatively, just dig out the plants around the outside, tranpslant them and leave the center.  Many perennials, however, eventually get so crowded at the center that it dies, leaving a circle of younger plants.

Once you have the clump dug out it will be easy to pry the plants apart from one another with your fingers or a hand tool.

A great reference book (with instructions on pictures) for  all sorts of propogation is Ken Druse's "Making more Plants: The Science, Art, and Joy of Propagation".

 

 

More Transplants Questions

Leaves browning on non-native willow from in Cumbla PA
July 10, 2011 - We recently planted a willow tree. A lot of the leaves turned yellow and some turned brown, but it is also getting some new buds. my question is, should I take the dead leaves off or leave them there...
view the full question and answer

Care and propagation of American Beautyberry
July 20, 2007 - We have an American Beautyberry growing on our lot. Before we fenced the backyard it was browsed by deer, and survived by wedging itself between the fence and a juniper tree. How can we: 1. encou...
view the full question and answer

Ensuring survival of wax myrtle in Wilmington, NC
July 29, 2009 - I just transplanted some wax myrtle bushes. What do I need to do to insure they live?
view the full question and answer

Transplant shock of non-native Bougainvillea
May 22, 2008 - Well I bought two Bougainvilleas, the first one I transplanted is doing great, the second one not so good when I was taking it out of the original pot the root ball stayed in the pot but the plant wit...
view the full question and answer

Starting transplants of native Pleopeltis polypodioides
January 15, 2009 - I would like to know how to start Pleopeltis polypodioides (resurrection fern) growing in my oak trees. I have a source for the plants but do not know how to start the transplants on the limbs of the...
view the full question and answer

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