Category Archives: Giant Hostas

How to Grow GIANT Hostas

The American Hosta Growers Association defines giant hosta as those that exceed 30 inches in height. There are several cultivars now that are in the 48 inch range. The size GIANT Hostas can achieve in your garden is determined by the light exposure, the available water and the depth and quality of the soil. All three factors need to be optimum to achieve maximum size.

How You Can Optimize The Growing Conditions For GIANT Hosta

Key West Hosta, a Giant Hosta

Key West Hosta forms an impressive mound of bright gold foliage 80 inches wide.

I like to use the analogy of comparing the needs of mice vs. elephants to the needs of miniature hosta vs. giant hosta.

On a small amount of food and water, mice can reach maturity in a matter of months.Compare that to an elephant.  An elephant takes huge amounts of food and water to reach maturity over 15 to 20 years!

With good conditions the giant hosta will reach maturity in 5 to 6 years.

Light Exposure

Liberty Hosta, a Giant hosta plant will brighten up any garden.

Liberty Hosta, a Giant hosta plant will brighten up any garden.

The optimal light for hostas as a general rule is:

  • dark greens and blues in less sun
  • yellows in more sun
  • variegated generally in mixed light

The ideal lighting is tree cover that has the hosta in and out of the sun as the sun travels through the sky.

Hostas Need Water

Hosta Empress Wu, A Giant Hosta

The wavy green leaves of Empress Wu are said to be the biggest hosta leaves ever!

Availability of water to the giant hostas is a very important factor. Most hostas receive about 60 inches of rainfall annually in their native habitat of East Asia.

When water is withheld, the hostas will stop growth. It will not be able to store as much food in the crown, which will then reduce the size of the plant the following spring.

Location, location, location is the largest factor in determining available water. If you have been gardening in the same location for several years you know where the moist spots are.

Moist areas are the ideal spot for the giants. We’re not talking about standing water that has no oxygen in the soil.  The best spot has soil that is likely to still be moist in the hot summer months.

The Depth and Quality of the Soil

Sum and Substance Hosta is a giant hosta.

A Healthy Hosta ‘Sum and Substance’ Growing in Our Garden.

Deep rich soil is very much a factor in how large your giant hosta can grow. Here in New England we think 10 inches of loam is deep. If you are in Iowa, that is considered poor shallow soil. Ten inches of topsoil is fine. The higher the organic matter content is the better the soil will be. Incorporating 50% compost to the mix you backfill with is optimal. You can maintain a high organic content through the years by allowing a mulch to rot in place. Besides retaining and making nutrients available to your giant hostas, the organic matter also allows better water penetration and retention in your garden soil.

Obviously, not everyone has the “perfect” location to grow giant hostas to their potential. The solution is to amend the soil to help create a desirable site. Adding organic matter and peat moss will help with water retention. After that it is up to us to water the hostas when Mother Nature doesn’t do her part.

Giving hostas, and especially giant hostas, about 1 inch of water a week will greatly improve the chances of growing a massive clump.

Now you know what GIANT Hostas need to be all that they can be!

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Where And How Do You Use GIANT Hostas?

There are so many giant hosta cultivars today that the ways to use them is endless, limited only by your imagination.

Hosta Garden with Giant Hostas

A serene landscape featuring Giant Hostas. From our employee Sherri’s garden.

The giant hostas make tremendous focal points whether planted alone as a specimen or planted in a mass for large area coverage. Hosta ‘Key West’ or Hosta ‘Sum and Substance’ can make a great focal point in a sunnier location. They both have a brilliant yellow foliage that is a great accent against surrounding green foliage. With less sun you will see them go on the greener side.

Hosta ‘Blueberry Waffles’ or Hosta ‘Blue Angel’ can be used as focal points in the shadier parts of your garden.

The variegation on Hosta ‘Bridal Falls’ and Hosta ‘Liberty’ are absolutely stunning when shown off as a mature clump!

If you have a large scale garden, the giants can be massed to great effect. Planted close enough to each other, they form a weed barrier by eliminating all light to any weeds that would try to grow below their canopy.

We often get asked what hostas we would recommend and, of course, our answer is “All of Them!” We hope you have a really big yard. It is always a hard question to answer as everyone’s opinions are different. We tend to lean towards the dependable growers that grab our attention in the garden.

Here are a few (or more!) hostas that we think everyone should have in their perennial garden.

Our Favorite Big Hostas

We often get asked what hostas we would recommend and, of course, our answer is “All of Them!”  We hope you have a really big yard. It is always a hard question to answer as everyone’s opinions are different. We tend to lean towards the dependable growers that grab our attention in the garden. Here are a few (or more) hostas that we think everyone should have in their shade garden.

If you want big, then our favorites are:

Blueberry Waffles Hosta, a Giant HostaBridal Falls Hosta, a Giant HostaBrother Stefan Hosta, a Giant HostaDevil's Advocate Hosta, a Giant HostaEmpress Wu Hosta, a Giant hostaFinal Summation Hosta, a Giant HostaBlue Legend Hosta, a Giant HostaFrost Giant Hosta, a Giant Hosta Gentle Giant Hosta, a Giant HostaKey West Hosta, a Giant HostaLiberty Hosta, a Giant HostaParhelion Hosta, a Giant HostaSimply Sharon Hosta, a Giant Hosta

Which Are The Largest Of The Giant Hostas?

Hosta Empress Wu, A Giant Hosta

Empress Wu Hosta

Empress Wu Hosta (40″T x 70″W) and Gentle Giant Hosta (46″ T x 70″W) have been two of our biggest sellers of the giant hosta varieties that we grow over the last two growing seasons.

Hosta gardeners are clearly obsessed with size and I can understand this from my own gardening experience. A four foot tall Gentle Giant sitting out in, or standing out in, a hosta bed is a tantalizing thought.

Sum and Substance Hosta (32″T x 72″W) and Blue Angel Hosta (32″T x 70″W) were the big two in popularity among the hosta giants for a long time. And they still are popular. No hosta garden should be without them.

The Hosta Victory (35″T x 70″W) and Dream Weaver Hosta (30″T x 72″W) are also very popular and have the added feature of being variegated.

Hosta Dream Weaver is a giant hosta

Dream Weaver Hosta

The giant hosta Dream Weaver is a personal favorite due to the contrast of the blue-green border and the creamy-white center.

How large a hosta can reach in size is not only determined by the cultivar you choose.

Location has a great deal to do with its ultimate size. Giant hosta plants need unlimited water and a deep rich soil, more so than the smaller cultivars of hosta.

You need to select a site away from competing tree roots to get a giant hosta plant to achieve its maximum potential.