Shady Creek Nursery
TIPS FOR GROWING HOSTAS
and Other Plants
PS-BE SURE TO CHECK OUT THE JUST FOR FUN
PAGE.
FEBRUARY
(2-28-01)
- Be careful when pruning hydrangeas: At this time of year, just cut off the
dead tips back to a new growth bud on the mop-head hydrangeas (macrophylla).
Buds were formed last year, and you don't want to cut them off!
(2-18-01)
- I have already found snails nibbling on plants. It is not too early to put
out some slug and snail bait. Snails often chew holes in the leaves of hostas
before they even emerge and unroll. Once the damage is done, the plant is
disfigured for the season! I use Deadline M-Ps. It is available in 10-and
50-pound bags. It is a tiny bright blue pellet. I will attempt to find the one
that comes in 3-pound containers. They are not the blue color. Any bait you
can find will help, I'm sure.
- I'm going to rake the mulch away from the hosta crowns this month to try
to cut back on snail damage, also.
- Hostas in containers are already coming out of dormancy. 'Chinese
Sunrise', montana 'Aureomarginata', lancifolia, etc., are
already several inches high. Be prepared to give emerging hostas in containers
some protection if the temperature will be below 28 degrees for several
hours.
MARCH
(3-18-01)
- Don't cut your bulb foliage (daffodil,hyacinth, etc.) after blooms fade
until the leaves go limp and yellow; then it is safe to cut it. They are
storing food for next year's blooms.
- Wait until after azaleas finish blooming to do your fertilizing. (More
about that next month.)
- If you need to prune spring flowering bushes, do it immediately after
blooming. Quince, forsythia, etc., need to be pruned soon if they getting too
big or woody. Remember to just take out some of the older, woody branches near
the base of the bush to revitalize the plant. Try to keep the natural shape of
the plant, rather than just "whacking" it!
- Keep putting out slug and snail bait, especially since we have had so much
rain. Remember slugs and snails love lots of plants-not just hostas.
APRIL
(4-09-01)
- When your azaleas finish blooming, prune any extra long branches that are
ruining the shape of the plant. Reach deep down into the plant and cut it.
Prune several branches this way to open up the interior of the plant and let a
little light in (for a bushier plant).
- Fertilize with a fertilizer for acid-loving plants. I use "Sta-Green
Azalea, Camellia, and Rhododendron" fertilizer. I follow the directions on the
back about the amount to use according to the size of the plant. Scatter it
all the way to the dripline of the branches, keeping it away from the center
of the plant.
- Also, if you have camellias and rhodendrons, fertilize them at the same
time if they are through blooming.
- Watch out for the caterpillars that are everywhere right now. They
love coral bells and hostas and will eat the whole plant down to the ground in
one night. We use Orthene on the plants; it doesn't hurt the hostas. It is
systemic so it will last a while.
- All varieties of hostas should be at least showing up by now. If you don't
see any sign of life where one was located, you might want to dig carefully to
see if has disappeared. It is not likely that it died due to the heat or lack
of water; probably something ate its roots.
- If you haven't fertilized your hostas yet, that needs to be done with a
slow-release fertilizer with a higher nitrogen content, such as 12-6-6 or
16-8-12. If you are always unsure about how much to use, we have premeasured
Osmocote tablets that you bury around the edge of the plant; they slowly
dissolve, feeding the plant over several months. You can do it once each year
and forget it! For a plant 36" in diameter, use 3 or 4 tablets. (We sell 25 in
a bag for $2.50.)
- For those of you who keep asking if lantana should have made it
through the winter, I think most did. Mine just started leafing out in the
last week. Probably all the branches are dead, but it should come out near the
ground.
MAY
(5-22-01)
- As soon as your hydrangeas finish blooming, prune as heavily as you wish,
then leave them alone till next year.
- For "Annabelle" hydrangea, pruning back to 18" may encourage rebloom in
fall
HOOKED ON HOSTAS!
(The following is an article
written by Toni Willoughby,owner of Shady Creek Nursery,
for Louisiana
Gardener magazine)
I admit it--I am hooked on
hostas. To some people hostas are just a bunch of boring green leaves that will
grow in the shade, but I know that they are the nearly perfect perennial,
looking beautiful 6-8 months of the year, then disappearing for the winter and
coming back better than ever.When I first moved to my home in the middle of the
woods, I had never seen a hosta. It didn't take long to discover what great
plants they were. The first ones that I planted received virtually no care and
actually grew. They were beautiful the next year; I had to try a few more! I
also read a few articles on hostas and learned there are hundreds of varieties,
from miniatures to giants, with smooth shiny leaves or very corrugated texture,
solid or variegated, with shades of green, gold, white, or blue. Being a plant
lover, I had to start collecting.
FAVORITE HOSTAS
After much experimentation I
have found many favorites. Since my first hostas were solid green, I tried some
of the brighter ones. My favorite for deep shade is the classic 'Gold Standard'.
With its chartreuse center and dark green margin, it almost glows. 'Paul's
Glory' is a new, more striking cultivar that has the same effect, but with
larger, more textured leaves. 'Frances Williams', a favorite of hosta collectors
for years, is another must-have for brightening dark areas. This hosta has large
corrugated blue-green leaves edged in chartreuse. A tendency for the edges to
burn in too much heat or sun does not keep most from having this in their
collection. Deep shade and plenty of moisture keep it looking its best. 'August
Moon' also lightens up a dark area beautifully; it has rounded greenish-gold
leaves. Nothing compares with the blue hostas for elegance in the shade garden.
Sieboldiana 'Elegans' is a tried and true favorite; its large rounded leaves and
upright habit make it a stand-out; 'Big Daddy' and 'Love Pat' are gorgeous
specimen plants, as well. 'Abiqua Drinking Gourd' is amazing with its leaves so
deeply cupped that one could drink from them. I love the look of gold leaf
hostas planted with both blue hostas and with those having a blue margin on
chartreuse or vice versa. 'Midwest Magic', is a fast-growing hosta that blends
well with both blues and golds. One thing I have found out about hostas,
though--you don't have to plan a matching color scheme to make an attractive
shade garden. When rows of hostas are sitting side-by-side in a totally random
color combination, they look beautiful. Perfectionists will always have to find
that exact color to go with another plant, but I don't think you can go wrong
when picking a group of hostas to plant together. There seems to be an infinite
number of choices of beautiful green and white variegated hostas. The most often
seen variegated hosta is undulata 'Albomarginata', the green hosta with the
white edge that can be found in almost any shady garden. This is still an
excellent plant to use in mass plantings because it is inexpensive, readily
available, and grows quickly. The reverse variegation of undulata
'Mediovariegata' (green with white streaks in center) also provides interest.
Another old favorite is 'Francee'; its crisp leaves with narrow white margin are
very attractive. 'Wide Brim' has a creamy margin that gets wider with age. Many
hostas with large areas of white are not strong growers in our area or will turn
green by midsummer. 'Night Before Christmas', with its elongated leaves is the
best-growing new white-centered hosta I've found. It's easy to pick out at a
distance; 'Loyalist' is more striking, but so far does not grow nearly as well
for me.
MOST DEPENDABLE HOSTAS
Hostas with fragrant blooms
are some of the best hostas to grow in the South. Originating from the
heat-tolerant plantaginea, they emerge earlier in the spring and go dormant
later in the fall than many other varieties. They tend to put new flushes of
foliage on all season, keeping a fresh look. These are also some of the most
sun-tolerant hostas. 'Royal Standard', 'So Sweet', 'Fragrant Bouquet', 'Summer
Fragrance', 'Iron Gate Glamour', and 'Invincible' are all excellent for our
area. Two new fragrant varieties look especially promising--'Guacamole', a large
hosta with greenish-gold leaves and darker green margin, and 'Fried Bananas',
the most sun tolerant gold hosta I have seen. Many varieties will adapt to
several hours of early morning sun, but it should be done gradually if moving
from a very shady location to prevent burning of the foliage. If the foliage
does burn or the plant goes heat dormant, it does not necessarily mean death for
the plant. Often the next year the plant comes back better able to handle the
situation. If not, moving it to a better location is the only solution. Hostas
can be moved at any time of the year. I believe it is better to move a plant to
improve its environment (even if it isn't the best time of year) than to leave
it suffering.
GROWING CONDITIONS
For the most successful
hosta growth, give the plants the most light possible without burning the
leaves. Dappled sunlight or very bright open shade is the best condition for
optimum growth of most hosta varieties. The deeper the shade, the larger the
leaves will get; there will also be fewer of the leaves. This does not mean the
plant will be unattractive; it will simply have a very different look from one
grown in stronger light. Colors of leaves vary greatly with changes in light
intensity as well. 'Gold Standard's' deep lime green center will color to gold
or even white with increasing light. Depending on your preference, you can vary
the placement of plants to obtain the look you want. Although people don't grow
hostas for their blooms, many hostas have very attractive flowers. Plantaginea's
long pure white tubular blooms are beautiful and very fragrant; they open in
late afternoon, while most hostas' blooms open in the morning. The blooms of
fragrant hostas range from white to lavender and smell delicious on a warm day.
Other hostas with pretty blooms are those of ventricosa parentage. These have
deep lavender buds which open to blooms with lavender and white stripes on the
inside. Examples of these include ventricosa, ventricosa 'Aureomarginata', and
'Lakeside Black Satin' (one of the darkest green hostas on the market). Using
'Blue Cadet', 'Golden Tiara', or 'Lemon Lime' in a mass planting is especially
attractive at bloom time because each is a very floriferous variety.If space is
a problem, there is a hosta to fit into the smallest spot. 'Stiletto' is a cute
little hosta that spreads by stolons. Its leaves are rippled green with a narrow
white edge, and it is only 6" tall. 'Fragrant Blue', 'Allan P. McConnell', and
'Lemon Lime' are other favorite small hostas. Besides having beautiful narrow
lime green leaves, 'Lemon Lime' has deep lavender flowers that provide a nice
contrast. 'Golden Tiara' has a green leaf with a neat gold margin and is in the
small to medium size range. It makes a nice edger plant, as does 'Gold Drop'.
'Diamond Tiara' is a very neat looking hosta with green leaves and crisp white
edge; this plant is stoloniferous and multiplies rapidly. Most people want
massive clumps of hostas and wonder why their hostas just don't get very big.
The first requirement for a really large hosta is to buy a variety that has the
potential to be large. This may seem obvious, but most don't think about this
when choosing a plant. All hostas will make increasingly larger clumps with age,
but most will never be monsters that make great specimen plants or background
plants. 'Summer Fragrance' (the largest and most vigorous of the fragrant
hostas), 'Colossal'(a very large leaved solid green plant), 'Elegans', 'Blue
Angel', 'Sum and Substance' (probably the most famous large hosta), and
'Guacamole' are eye-catchers after just a few years. It takes all hostas several
years to obtain the leaf size and texture that gives them their distinct
identity, but these can be massive.
PLANTING HOSTAS
When planting beneath
trees, I do not prepare an entire bed. I dig individual holes for my plants,
altering placement where required because of large tree roots. In an area where
roots are not a problem, it would be best to prepare a large area. Hostas
appreciate soil that is rich in organic matter so addition of bark mulch or peat
is often needed. Keep in mind that tree roots are going to go straight to the
nicely improved soil. It may be necessary to redo an area after a few years if
the tree roots become too thick around your hostas and sap all the nutrients or
strangle the plants. Often large clumps of hostas will begin shrinking in size,
and root competition is often the cause (assuming nothing has been eating the
roots of the hostas).With a container-grown hosta, first bare root the plant,
removing all soil and gently untangling the roots. Make sure the hole is wide
enough to accommodate all roots without cutting or folding. Mound the soil in
the center of the hole, spread roots over the mound, and fill the hole. Do not
plant any deeper than the plant was growing originally. If your hostas arrived
bare root, it would be good to soak the roots in a bucket of water for a few
hours to replenish their moisture.
FERTILIZING
I like to fertilize hostas as
they emerge in the spring with a slow-release fertilizer(12-6-6 or a similar
formulation). Supplemental feeding with a water soluble fertilizer sprayed on
the foliage twice a month would also be beneficial during spring. In June I
usually give another small application of the slow release fertilizer(I am using
a 3-month type). Keep newly planted hostas constantly moist while they adapt to
their new home. Hostas are very drought tolerant plants, but will not do their
best in a dry situation. Constantly moist soil with good drainage is preferable
for optimum growth; however, hostas are extremely adaptable and often will grow
well in wet soil. Experimentation is the only way to know if they can withstand
your own particular problem location.
DIVIDING HOSTAS
Dividing hostas can be
done at any time of year, but the best times would be spring and early fall.
During the hot summer months, the plants are not as actively growing and would
take longer to re-establish. There is no real need to ever divide a hosta unless
it totally overtakes its allotted space. Hostas can grow undisturbed for thirty
years or more. Constantly dividing to get more plants never gives the
satisfaction of a beautiful, mature, well-grown plant.
PESTS
Slugs and snails are always a problem in a
moist, shady location. I do not have a miracle remedy; an early application of
slug and snail bait (I use Deadline brand.) before the hostas emerge and
occasional treatments thereafter are the only things I do. Keep in mind that
often the leaves are damaged before they even unroll. The moist, cool conditions
in March and April when hostas are ending their dormant period are perfect for
those creatures. If you pull the mulch away, usually there will be several
snails already crowded around the crown of the hosta before it comes up. When I
have time I like to pull the accumulated leaves and mulch away from the crowns
of the plants early; but in a woodland situation this is not always feasible. It
is hard to be a perfectionist in the woods; I just try to enjoy the overall
beauty and not dwell on tiny holes in the leaves. Speaking of holes in
leaves--caterpillars, grasshoppers, and beetles can make "Swiss cheese" out of
hostas. Spraying a systemic insecticide, such as Orthene, on the plants is
helpful if you start before there is too much damage. Once damage is done, the
only solution (if you can't stand to look at your plant) is to cut off the
leaves and wait for new ones to come out.
USING HOSTAS IN THE LANDSCAPE
There is no best way to use hostas in
the landscape. Mass planting of one variety gives one the feeling of a large
space, but many of us want to show off the many varieties we have collected.
Beds filled just with hostas are gorgeous most of the year, but very boring
before their emergence in spring. Mixing in a variety of shrubs, ferns, and
other perennials give interest to an otherwise bare landscape in winter. There
are a number of beautiful evergreen ferns and shade perennials that will keep
the garden inviting while the hostas are resting. For those who do not have
enough shade to grow hostas in their gardens, many are turning to container
gardening on covered patios, under carports and porches, or even under arbors.
Interesting mixes of hostas, shade-tolerant grasses, ivies, and annuals make
beautiful arrangements. When evergreen perennials are mixed in, the container
can be left in place in winter and be an attractive accent even when the hostas
are dormant. Hostas are excellent for beginning shade gardeners. They are one of
the easiest of all plants to grow, and there is nothing so motivating as seeing
a plant come up the second year looking more beautiful than before. Using hostas
in the landscape makes shade gardening a breeze.
LEARN MORE
If you would like to learn more
about hostas, the following books are recommended:
- The Hosta Book, 2nd edition, edited and compiled by Paul Aden, published
by Timber Press, Inc. (This book does not have the newest varieties in it, but
it is a great book for beginning hosta collectors.)
- The Gardener's Guide to Growing Hostas by Diana Grenfell, published by
Timber Press, Inc.
- The Genus Hosta by W. George Schmid, published by Timber Press, Inc. is an
excellent reference for the serious collector.
Membership in The American Hosta Society provides two very
informative journals each year. These have color photos and articles on many
topics, including new varieties. For membership information check their web
site: www.hosta.org.
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