Richard Baines, 60, was fatally injured in the Castle Douglas area of Dumfries and Galloway on Sunday.
Mr Baines was the curator of Logan Botanic Garden, a regional garden of the Royal Botanic Garden Edinburgh (RBGE).
David Knott, director of horticulture at RGBE, said Mr Baines was hit while walking near his home.
Paying tribute, Mr Knott said of Mr Baines: “He was primarily responsible for a number of significant developments and initiatives at Logan including the first ‘all green’ public conservatory powered by green energy in the UK.
“During his tenure, Logan also successfully gained a number of accolades including being voted the ‘best garden in the UK’ by Which in 2021.”
Mr Knott said Logan was also the first garden in Scotland to gain a gold Green Business Tourism award and was the first to install electric vehicle charging points, culminating in it being awarded five-star status as a visitor attraction by VisitScotland.
He added: “It will, however, be for his passion and enthusiasm for plants that he will be remembered through significantly increasing and expanding the plant collection at Logan, participating and leading fieldwork in China, Canary Islands and Vietnam from which seven plant species are currently being published that are new to science.
“Richard’s contribution as an enthusiastic plantsman and curator at Logan, and to the Royal Botanic Garden Edinburgh’s wider work and culture, has been immeasurable, and he will be deeply missed by many.”
Check the weather where you are
Storm Boelo pummelled parts of the UK, bringing 84mph gusts and a third of a month’s rain to pockets of Scotland.
A man in his 20s was also killed in Finchley, north London, by a falling tree.
Two women were also taken to hospital after they were struck by another falling tree in Aberfeldy, Perth and Kinross.
A fresh yellow warning for wind kicks in at 6pm on Monday and will be in place until 3am Tuesday.
The alert stretches along the west of the UK, covering parts of North West England, Northern Ireland, South West England, Strathclyde, South West Scotland and Wales.
The Met Office forecasts gusts of 45-50mph inland and 60-65mph along exposed coasts and over high ground.
The strong winds will be accompanied by heavy rain at times, and there could be some disruption, the forecaster added.
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