Prime Minister David Cameron is due north of the border to address the Scottish Conservative conference, ahead of the Holyrood elections in May.
His planned speech in Perth comes ahead of what could be a tough election campaign for the party which won power at Westminster last May.
The Tories say they have influenced key policies which have been implemented by the SNP government, but they have also been criticised over spending cuts.
The party has just one MP in Scotland.
Speaking as the conference was getting under way, Scottish leader Annabel Goldie said politicians must be honest about the tough financial situation, while offering hope for the future.
She argues the Tories were behind key Scottish government policies, including boosting police officer numbers by 1,000, rates relief for small businesses and a new, national drug strategy.
"Over four years, the Scottish Conservatives have delivered a £2bn package of measures for Scotland," said Miss Goldie.
"We have made Scotland safer, fairer, more competitive and more secure. In short, a better Scotland."
The Scottish Tory leader said her party was poised to publish an election manifesto which focussed on jobs, families, safer communities and a healthy environment.
Miss Goldie said: "These are tough times, but our challenge is to balance the tough financial reality with common sense and hold to our belief that things will get better.
"Realistic about today, but optimistic about tomorrow."
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