- Increasingly mild winters in are adding to the life span of Viburnum tinus. Several years ago, these plants could not survive a hard winter. Plants older than ten years are no longer an exception in northern Europe.
- Yellow Flag Iris (Iris pseudacorus) purifies water and is thus a commonly used water plant in natural water filtering systems for purifying surface water.
- Many heather (Erica and Calluna) varieties flower early in the year when few other sources of nectar are available. This makes them very important for bumblebees. The bees can then collect enough food to develop their colonies or establish new ones.
- Japanese maples (Acer palmatum) are known for their wonderful autumn color but northern European weather conditions during some years fail to produce the desired effect. Some cultivars such as ‘Osakazuki’, however, turn a bright color every year — good to know for all sorts of zones.
- The autumn colors of Liquidambar styraciflua (Sweet Gum) can differ from year to year in our changeable climate. Some cultivars that guarantee a beautiful color display are ‘Worplesdon’, ‘Burgundy’, ‘Festival’ and ‘Lane Roberts’.
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