The east London council was named overall champion at the Royal Horticultural Society-organised scheme, winning eight more awards than last year, and in three categories. It was the overall category winner in three categories: Hornchurch Country Park won in Large Conservation, Raphael’s Park was named Large Park of the Year and Elm Park Town Centre took Best Town Centre.
Upminster Cemetery and South Essex Crematorium also received gold awards and Romford Cemetery silver.
Keats Avenue Allotments also won a Discretionary Award, The London in Bloom Allotment Award.
The haul of honours follows a campaign to brighten-up Havering with flower baskets and planters and carpet bed planting for the Queen’s birthday placed outside the Town Hall in Romford.
Cabinet member for culture and community engagement Melvin Wallace, said: "This year we have done exceptionally well, winning the most awards in London and three big categories.
"I would like to thank staff who do a fabulous job and take great pride in their work as shown in the amount of awards we have won this year, and I’m sure all residents will agree that parks and open spaces in the borough are well maintained."
London it Bloom and its parent campaign Britain in Bloom have been run by the RHS since 2002. Green spaces and gardens are based on the same strict criteria RHS judges use for its internationally-renowned flower shows.
Havering’s winning entries are also in the running to be put forward for next year’s Britain in Bloom competition. Each year in October and November the London in Bloom campaign manager and trustees nominate winners from the Large City, City, Town, Village, Urban Communities or Business Improvement District categories into the Britain in Bloom finals, if they believe the winner can sustain their entry at a high standard for a further year. London in Bloom will be judged again in August 2017.