In fact the strength of the sun has intensified the scents so much all the roses have had to be more clearly labelled as so many visitors have been asking staff to identify them.
Visitors to the garden based at Probus between Truro and St Austell can expect to see a around 2,000 rose plants ranging from the new rose ‘Sweet Haze'- rose of the year for 2008 – back to the 18th century Rosa mundi which was bred about the time Trewithen was founded in the mid-18th century.
The flower beds are textured with rose varieties of varying heights – from miniature bushes around a foot high to five foot standard roses and everything in between, including climbing roses decorating wooden pergola on a walkway leading into the garden.
Last summer's dreadful weather stopped the roses flowering in their first summer after being planted, killing the buds before they could develop. This year couldn't be more different.
Visitors are being treated to the full glory of the garden designed at the request of Trewithen's owner Michael Galsworthy who has a passion for the flower.
Head Gardener, Gary Long, explained: "Mr Galsworthy wanted to create a wow factor with colour, smell and blooms, a centre for rose excellence and the first dedicated rose garden open to the public in Cornwall.
‘The roses also add an abundance of extra colour and interest to Trewithen during the summer. It is renowned for its Springtime magnificence – now it is becoming equally well-known for its summertime fragrance and beauty.'
"Last summer was the first chance the garden had to bloom so it was a huge disappointment that the blurred seasons and terrible weather literally cut it off before its prime, but this year it is truly magnificent."
Trewithen Garden is open daily from 10am to 4.30pm until September 30th. Examples of all the roses growing in the garden, which were provided by the Cornish Rose Company, are on sale at Trewithen's plant centre.