Projections for the third quarter are not looking too rosy which leads to concerns that the economy may be heading for recession - defined as two consecutive quarters of economic contraction.
And economy Minister Peter Altmaier had said the country was not yet in a recession and could avoid one if it took the right measures.
Debt-ridden Rome slipped into recession territory at the end of the past year after a second consecutive quarter of decline was recorded for the last three months of 2018.
While federal statistics authority Destatis will only provide a detailed GDP breakdown later this month, its broad-stroke report showed higher household and government spending supported expansion, while weaker trade was a brake on growth.
Consumption expenditure and capital formation sustain economic activity, while foreign trade slows down growth.
But on Tuesday, Chancellor Angela Merkel poured cold water on calls for more fiscal stimulus, and on Wednesday the government spokeswoman said this position had not changed.
Melanie Vogelbach at the Association of German Chambers of Industry and Commerce said: "The challenges for the German economy are mainly based on worldwide factors: trade conflicts, sanctions and the scenario of a no-deal Brexit".
He noted that Europe's largest economy had grown by 0.5pc each quarter on average since the end of the 2008-09 recession and had posted positive numbers in 35 out of the past 40 quarters.
Separately on Wednesday, European Union statistics office Eurostat confirmed that the Eurozone's GDP as a whole grew by 0.2 percent in the second quarter, down from 0.4 percent in the first quarter of 2019.
A government spokeswoman said Berlin did not now see "any need for further measures to stabilise the economy", which was still expected to grow slightly this year.
Construction itself fell after an unusually good first three months, boosted by a mild winter.
The German economy shrank in the second quarter as manufacturers struggle with a global slowdown due to the U.S.
"For a year now, the German economy has been only crawling forward", UniCredit analyst Andreas Rees said, with the many uncertainties facing German exporters presaging more pain in the rest of the year.
In an usual move, the powerful BDI industry association joined the growing chorus of voices demanding that the German government ditch its balanced budget rule.
His comments came after a government official told Reuters last week that Berlin was considering issuing new debt to finance a costly climate protection package.
The German government had a fiscal surplus of €58bn (£53.6bn) in 2018, so it has plenty of cash to spend, should it choose.