Readers of this blog likely know that many of the elements of our garden design were influenced by Japanese gardens. Thus, for the last twenty years, I've planted many treasures from Asia. But climate change and habitat loss have all gardeners looking at their garden with new eyes.

I'm happy to be able to say that I've composted kitchen and garden debris, mulched with chopped leaves and haven't sprayed or used many chemicals over the years. I have an old Bur Oak tree and a crop of seedlings that I'm nurturing (below), along with every fern native to Wisconsin happily romping around my garden.

But I am not a native plant aficionado nor do I want to give up all the lovely non-natives I've planted over the years. That's why I was thrilled with the information that Fergus Garrett, head gardener at the famed Great Dixter estate in the UK, shared with those of us who signed up for his webinar as part of Olbrich Botanical Gardens spring lecture series, "A Gardener's Call."

The "call" refers to the idea that gardeners need to "recognize and respect all beings’ contributions to healthy garden ecosystems." If we do that, then we will be able to support all life in the garden. I totally agree with that concept which is why I sat up and took notice when Garrett showed us that ornamental horticulture does that very well.

Photo by Andrew Montgomery/Gardens Illustrated magazine
Garrett decided that Great Dixter needed a comprehensive biodiversity audit that would then provide the knowledge that he felt was critical to managing Dixter in the best way. It wasn't really news, he noted, when the survey showed the meadows, ponds, pastures and woodlands on this old estate were extremely rich.

Photo by Andrew Montgomery/Gardens Illustrated magazine
The big surprise — and what excited me — was the fact that the survey found the richest part of all was the ornamental garden (above). The survey clearly showed the garden, even with its fancy floral displays, supported an extraordinary amount of wildlife. Though Garrett hadn't specifically gardened with biodiversity at the forefront, it was there as a by-product.

That means I don't have to tear up my garden and start over. I can leave my non-natives in place and add more if I want. The big lesson is having as much diversity as possible. The things I've ordered online, or plan to buy locally, range from grasses to shrubs to bulbs and perennial plants; all of which means I am moving in the right direction for diversity. Add in the fact that almost half of them are native and I no longer have to feel guilty for wanting a garden that showcases non-native plants.