Hosta 'Guacamole' (v)

About this cultivar:

Hosta 'Guacamole' (v) is a cross between Hosta 'Avocado', Hosta 'Salt' and Hosta 'Lime juice'. Ok I joke. Not well.

It was introduced by Bob Solberg of Green Hill Farm of North Carolina, USA in 1994. It is a sport of Hosta 'Fragrant Bouquet' so it has fragrant flowers but does not set many seed pods. The broadly ovate foliage has a chartreuse coloured centre that turns brighter as the season progresses. Technically a variegated plant but not really since the leaf margin is barely visible in cooler climates, even if exposed to sunlight.

The Hostapedia by Mark Zilis (2009), states that this cultivar "...continues to increase in popularity due to its attractive foliage, fragrant flowers, and fast growth rate. In fact, 'Guacamole' and its sports would be an excellent starter collection for those new to hostas."

It was the 2002 "Hosta of the Year" by the American Hosta Growers Association and was awarded the Royal Horticultural Society's Award of Garden Merit in 2012. 

I found a video from Louisiana State University, USA below:

• Position: Full sun, partial shade, full shade
• Soil: Almost any soil, grows well in Ballyrobert
• Flowers: June, July
• Other features: Grows well in Ballyrobert, Interesting Foliage or Fruit, Suitable for Container, Dappled Shade or Full Shade Loving, Royal Horticultural Society Award of Garden Merit (RHS AGM)
• Hardiness: H7 - Hardy in the severest European continental climates (< -20°C), Fully hardy - grows well in Ballyrobert!
• Habit: Clump forming
• Foliage: Deciduous
• Height: 30 - 60 cm (1 - 2 ft)
• Spread: 30 - 90 cm (1 - 3 ft)
• Time to full growth: 2 to 5 years
• Plant type: Herbaceous Perennial
• Colour: Green, yellow
• Goes well with: Cornus, ferns, allium

About this genus:

Hosta (hos-ta) is a genus of plants commonly known as plantain lilies, giboshi, or the old botanical name Funkia. The name Hosta is in honor of the Austrian botanist Nicholas Thomas Host. However most modern plants were introduced from Japan to Europe by Philipp Franz von Siebold in the mid-19th century. Don't worry about Philipp's legacy being forgotten though; he has a species named after him! (Hosta sieboldiana). 

Hosta are often touted as the best shade-loving plants for the perennial garden, which is hard to dispute. In cultivation, Hosta readily mutate and have produced thousands of novel colours and leaf forms (blue, gold, and variegated are the most popular). Because of their great foliage Hosta are often thought of as foliage-only plants, but it is worth noting that many cultivars  have fantastic flowers - see "Sum and Substance" and "Stained Glass" for example.

You will read that for best performance, Hosta prefer to be out of full-sun. However if you live on these islands it is doubtful you will ever get any full-sun; so you may try them in your brightest spot as long as they have some moisture. You may have had some experience with slugs and Hosta. So have we. We have found that cultivars matter (some are tastier to slugs than others) so we try to grow only slug resistant cultivars or ones that grow so many new leaves the slugs can't keep up. We've also found that, by not using chemicals, little mites that eat slugs eggs multiply and keep the population down - let nature run its course! Some slug-loving-predator should turn up eventually!

How to use Hosta? Well, if you are paranoid about slugs, place the plant in the middle or back of the border where you can only see the upper part of the plant. Slugs don't climb so high so the lower leaves that get slug damaged won't be seen! As for plant partners we put some red stemmed dog-woods near or through them (Cornus), or large leaf-ferns. It is common to put bulbs in and around Hostas; we do it with Allium. But we don't do it with Narcissi or Tulipa; they don't like the competition.