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
Not Yet Rated

Saturday - October 25, 2008

From: Cleveland, NY
Region: Northeast
Topic: Planting, Trees
Title: Proper time of year to plant evergreens in New York
Answered by: Barbara Medford

QUESTION:

Dear Smarty Plants, Is it too late to plant evergreen Thuja, blue spruce and firs in Cleveland, New York? Vicki

ANSWER:

First, we had to determine what were your average first and last frost dates. From a website on Oswego County, we learned you had already had a temperature of 25 deg. on October 19. You appear to be in Zone 5b in the USDA Hardiness Zone Map, which means your average annual minimum temperatures can range from minus 10 deg to minus 15 deg.  From a Cornell University Gardening Resources site, Last Spring Frost in Northern New York, we found out your last average frost date is from April 10 to April 20.We believe that small new plants need all the chances they can get to survive, and having to face a blast of frigid air when they are freshly planted and still suffering from transplant shock probably reduces their chances considerably. We will consider each tree you asked about separately, but we feel the verdict on all of them is going to be the same-plant them after your last average freeze date in the Spring, April 10-20, and they will have a much higher survival chance.

All of these trees are native to North America, as well as to New York State. We are always happy to see our correspondents selecting trees native to North America and to the area in which they are being grown. They are more adapted to conditions and will need less fertilizer, water and maintenance. Follow each plant link to our webpage for information from our Native Plant Database and then the other links giving more planting and culture information. 

Thuja occidentalis (arborvitae) - Plants are susceptible to strong wind, snow, and ice damage, and young plants need protection from winter browsers. It's not bad enough they get their little branches frozen, but they get nibbled, perhaps to the ground, before they ever have a chance. More information from University of Connecticut Horticulture Thuja occidentalis

Pseudotsuga menziesii (Douglas-fir) - grow naturally in New York, foliage consumed by grouse, deer and elk. More information from University of Connecticut Horticulture Pseudotsuga menziesii

Picea pungens (blue spruce) - native to New York, for more information see this article from Virginia Tech on Blue Spruce. Pictures


Thuja occidentalis

Pseudotsuga menziesii
 

More Trees Questions

Replacements for photinia from San Antonio
August 31, 2012 - i just read your response to someone regarding Red Tip shrubs. You just saved me thousands of dollars ! I was getting ready to order over 250 of these to line my 2.5 acre fence line. What shrub would ...
view the full question and answer

Small trees for property edge in Katy TX
April 16, 2012 - By deed restriction, I must have five trees on the side of my small suburban lot just west of Houston, TX. Due to the lot layout, the trunks are only about 8-10 feet from the house, with the trees abo...
view the full question and answer

Can Live Oak suckers be mowed during Oak Wilt spread season in Austin?
April 12, 2010 - I live in South Austin, not too far from the Wildflower Center. I have a Live Oak in my yard with a substantial amount of sucker growth from the roots. Can I mow them freely throughout the year, or ...
view the full question and answer

Non-native pomegranate failing to fruit from Highland Village TX
October 20, 2012 - Last spring I planted a pomegranate tree (type: Wonderful) which is supposed to produce edible fruit. It had 5 or 6 absolutely beautiful blooms, but each of them dropped off and no sign of fruit. Is...
view the full question and answer

Late leafing and early leaf-drop of Ohio buckeye tree
October 28, 2005 - We recently bought a house which has an ohio buckeye tree in the back yard. It stands about 40 feet from a large creek in Troy, Ohio. The tree is about 30 feet tall. A strip of the bark is missing....
view the full question and answer

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