Readers of this blog and our websites will know all about Tom Ogren, the originator of the concept of low allergen gardening, the inventor of the OPALS allergy scale and the author of The Allergy Fighting Garden, Safe Sex in the Garden and a number of other books linking the …
The Allergy Fighting Garden
Using plants to teach about allergy
I have talked before about how the amazing Nigel Clarke is aiming to turn beautiful Guernsey into a low allergen island, basing his work on Tom Ogren's OPALS Allergy plant scale. (For those of you who have not heard of Tom, he is the creator of the OPALS scale, a …
Can we blame male trees for the dramatic increase in the rates of hay fever? Tom Ogren says ‘yes’!
The sex life of plants, including trees, is not simple. Some, known as perfect flowered plants, have their male and female parts in the one flower so are effectively self pollinating (roses or apples); some, known as monoecious flowered plants have separate male and female …