Re-assess the maturity of the chosen variety. It may be getting too late to plant longer season varieties based on the frost-free period remaining. If necessary, ask a local retailer to suggest other suitable varieties for the area. Keep crop insurance deadlines in mind. The crop insurance seeding deadline for Saskatchewan is June 20. In Alberta, deadlines are May 31 for full coverage and June 20 for limited coverage. Manitoba Agricultural Services Corporation has indicated that no extensions to seeding deadlines will be announced. Information on seeding deadlines for all zones and crops can be found at:
http://www.masc.mb.ca/masc.nsf/crop_seeding_deadlines.html