UBC Botanical Garden Forums  

» UBC Botanical Garden


Go Back   UBC Botanical Garden Forums > Archives (no new threads) > Rosa (roses)

Post New ThreadReply
 
Thread Tools
  #1  
Old January 14th, 2003, 12:08 PM
Gregg Gregg is offline
Registered (1-2 posts)
 
Join Date: Jan 2003
Location: Coquitlam, BC, on the north side of a hill
Posts: 1
When to dormant spray?

I usually start thinking about spraying my roses and fruit trees with dormant oil & sulphur at this time of year. With the mild winter, my roses are all covered in leaves, "Pink Parfait" has 21 buds (some opening) and my "Fragrant Dream" standard has a half-open bloom on it (and this is despite the fact that we live on the north side of a hill in Coquitlam!). What's a rose grower to do under these circumstances?
Reply With Quote
  #2  
Old January 21st, 2003, 09:46 AM
HortLine's Avatar
HortLine HortLine is offline
UBC Botanical Garden and Centre for Plant Research Friends of the Garden
 
Join Date: Mar 2002
Location: Vancouver, BC
Posts: 354
I spoke with Andrew Hill, one of the horticulturists at UBC Botanical Garden and a member of the Vancouver Rose Society. He had this to say:

With regard to your question about spraying your roses and fruit trees:

Even through your roses are budding, you can spray now with lime sulphur and dormant oil. There may be some burning, but the roses will recover. A guide to deciding on when to prune your roses is to wait for the Forsythia to bloom in your area. As for your fruit trees, you can spray them now. Make sure all leaves and debris are cleaned up around your roses and trees and provide as much air circulation as possible around your roses.

It is recommended that you purchase your spray product from a reputable garden centre and follow the instructions carefully. Do not spray on a windy day and try to ensure that there will be 48 hours of dry weather. Good cultivation, adequate feeding and especially good drainage and irrigation are the best methods for avoiding problems. Should there be a frost warning after pruning, give your roses some protection (i.e., wrap in burlap).

You might be interested in acquainting yourself with the Vancouver Rose Society. They meet the second Tuesday of every month and are a most informative and interesting group. The membership contact is .

Here is the web site for the Vancouver Rose Society.

Good luck!
Reply With Quote
Post New ThreadReply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are Off
[IMG] code is Off
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
dormant oil spray grdnstff Garden Pest Management and Identification 3 December 11th, 2005 06:36 PM
Can I spray dormant oil on my roses now in November? Lorraine Rosa (roses) 1 January 22nd, 2005 01:31 PM
Apple trees and dormant oil spray Alison Fruit and Nut Trees 1 July 3rd, 2004 08:07 AM


All times are GMT -7. The time now is 02:36 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2001-2011, University of British Columbia Botanical Garden & Centre for Plant Research