Geranium ROZANNE 'Gerwat'

About this cultivar:

Geranium ROZANNE 'Gerwat' is an amazing new-ish geranium that has proven to be an outstanding garden performer. First discovered in 1990 in the garden of Donald and Rozanne Waterer of Somerset, England, this sterile hybrid of Geranium himalayense x Geranium wallichianum 'Buxton's Variety' makes a lovely clump with profuse blue-violet flowers. In 2013 it was announced as the RHS Plant of the Centenary! We have it almost everywhere in our garden at Ballyrobert. One pairing that people always comment on is with Chrysanthemum 'Mary Stoker' (see photos).

• Position: Full sun, partial shade
• Soil: Almost any soil, grows well in Ballyrobert
• Flowers: June, July, August
• Other features: Grows well in Ballyrobert
• Hardiness: Fully hardy - grows well in Ballyrobert!
• Habit: Clump forming, bushy, trailing
• Foliage: Deciduous
• Height: 45 - 75 cm (1.5 - 2.5 ft)
• Spread: 45 - 60 cm (1.5 - 2 ft)
• Time to full growth: 2 to 5 years
• Plant type: Herbaceous Perennial
• Colour: Green, purple, blue
• Goes well with: -

About this genus:

Geranium is a genus of 422 species of flowering plants found throughout the temperate regions of the world and the mountains of the tropics, They come in  a variety of shapes and sizes and the five-petaled-flowers can be white, pink, purple or blue, often with distinctive veining. The genus name is derived from the Greek géranos meaning ‘crane’. The common name is‘cranesbill’. Why the crane reference? Well, some species in the Geranium genus have a distinctive mechanism for seed dispersal. This consists of a column which springs open when ripe and casts the seeds some distance.  The shape of the unsprung column looks like the bill of a crane- therefore cranesbill!

Geranium is often confused with its close cousin Pelargonium (florist geranium). The two plants were originally lumped into the one genus (genus Geranium), but in the 1780s, the genus Pelargonium was split from Geranium. However, by that time the common name "geranium" for the florists plants was part of the public vernacular and it stuck.

Geraniums are not as flashy as many perennials, but are getting more and more popualr again as newer cultivars become more floriferous and for longer. The attractive foliage of Geraniums, combined with their  blendable, butterfly-attracting, spring and summer flowers, make geraniums staples in the perennial garden. 

The genus geranium has long been recognized as one of the most durable and easy to grow perennials for the garden. They love sun or part shade and will grow in any soil that isn't waterlogged. 

How to use them? Oh, the list is endless and often depends on the specific geranium, its height, habit and colour - they are not just "ground cover" plants!