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Browse
below for some information
on
common plant growing questions ::
Q.
What is dividing, and how do I do it?
A.
Dividing is the breaking up of a plant's roots. Most plants benefit from
dividing every 3-5 years, or when you see that blooming has decreased over the
last few seasons. Dividing is a way to promote new growth and healthy root
production on a plant, along with giving it and other surrounding plants room
to spread.
You
simply dig up the root clump, shake off any excess dirt off the roots, and
divide the roots with an old knife or with your hands.
Be
sure to give each division enough root, and plant out the divisions as soon as
possible. Dividing can be done any time of the year when the plant isn't
producing flowers, but it is usually best done in the fall or spring when heat
and moisture stress are less likely.
Q.
What is dead-heading, and how do I do it?
A.
Dead-heading is the pruning off of old or spent flowers/foliage. Most
perennials and annuals benefit from dead-heading throughout the season to
promote new growth, vigor, and new blooms. You can dead-head when a plant is
finished blooming or when its appearance is unattractive,
Just
take a scissors or garden shears, and trim off the top quarter or third
portion of each stem. This will force the plant to produce new growth, and
thereby new flowers will form.
Q.
Does this plant spread?
A.
All plants will spread in their own way. Some will spread differently or at a
different rate, but all plants will need room to grow.
When
planting, use the instructions on the label that was with the plant when you
bought it. This will give you a good start as to how each particular plant
will spread. You can usually expect a plant to at least double in size the
next season after planting.
Q.
How do I prune my Hydrangea?
A.
That depends on what type of Hydrangea you have. Additionally, pruning is
usually not necessary at all unless the plant has grown too large or has
become unattractive. If you need to prune, the following are some types and
how to do it ::
H.
anomala petiolaris (Climbing) - These bloom on new growth/wood. No pruning is
necessary unless shaping or a change in appearance or size is desired.
H.
arborescens (Annabelle, Hills of Snow, etc.) - These bloom on new growth/wood.
Prune all the way to the ground each winter or early spring.
H.
grandiflora/paniculata (PeeGee, Pink Diamond, etc.) - These bloom on new growth/wood.
During the season, prune off dead flowers if unattractive and prune out any
aggressive or unsightly stems that are produced. Then, in winter or spring cut
back to the ground.
H.
macrophylla (Big-leaf, Hortensia, Lacecap, and Mophead types) - These are the
most common Hydrangeas. Most of these varieties bloom on old growth/wood, or stems that were
produced the previous year. However, some newer hybrids ('Endless Summer'
e.g.) being recently introduced bloom on old and new growth/wood.
For
the common varieties, no pruning is really needed. But if you want to get rid
of some of the unattractive foliage, do the following : Each season, prune about a third of the stems
halfway back. Try to do this after they have bloomed, but not much later than
August if possible. This will leave some foliage to develop next year's
blooms. If the plant is established and mature, you may selectively prune out
some stems down to the ground each year. This will promote a more vigorous
future bloom.
For
the newer varieties, just prune selected stems that might be odd-shaped or
unsightly, and the rest of the plant can be left alone. Some stems can be
pruned to the ground each year after flowering is complete, but try not to
prune them all back.
H.
quercifolia (Oakleaf) - These usually bloom on new growth/wood. Prune all the
way to the ground in early spring.
Q.
What type of soil do I need?
A.
Usually, any plant will perform best in loosened, rich, and well-drained
soil. This is soil that is easy to work with, is rich in nutrients, and stays
moist but not constantly wet.
Sandy
or gravel-like soil drains and dries out rapidly. If you have mostly sandy or
gravel-like soil, adding top soil or peat to the soil will give it a needed
boost in nutrients, and give the soil the ability to retain moisture.
Clay
or heavy soil does not drain as well and packs very hard, making it difficult
for healthy root growth. If you have clay or heavy soil, adding peat moss or a
good grade potting soil will break up the soil and make it more manageable, while
giving it better drainage characteristics.
For
containers, use only premium potting soil (not from your local gas station).
Good potting soil will allow for excellent drainage (essential in a
container), but also will have the ability to retain moisture and stay loose
for good root development. If you use regular top soil or dirt from your own
yard, over time it will get hardened, compacted, and not allow for vigorous
and healthy plant growth/performance. For kicks, try potting one plant in top
soil, and another in good potting soil... you will be amazed at the
difference!
Q.
Why doesn't my plant grow or do anything?
A.
Don't expect too much from a plant until at least the following season
after you plant it. It takes time for plants to get established. Most plants
take at least 2-3 seasons to reach maturity, and some longer than that. Of
course, purchasing a larger or older plant will give you a more instant size
and presence.
Q.
What does "full sun" really mean?
A.
On many of our plant labels, you will see the light requirements for a particular plant as being "full sun," meaning
that the plant requires full sun for healthy growth and blooming. However, this is not always the case. In fact, in our testing
and experiences, just about any plant that says "full sun" on its label can actually be grown in shadier areas. So, any
time you see a "full sun" plant, just keep in mind that "full sun" really means only 3-5 hours of direct
sunlight are needed, not all day long as you might suspect. This applies to most perennials, but there are a few exceptions.
Q.
Why do many of my plants look dead after they flower?
A.
Many perennials often go dormant after they foliate and flower. This is normal, and it does
not mean you killed them or that they are diseased. They can also briefly go
dormant if they are exposed to any sort of stress like excess heat or drought.
So,
don't dig them out thinking they are dead, just give them the care they need.
Some plants that go dormant soon after flowering include almost all woodland and
wildflowers, along with Dicentra, Astilbe and Aruncus (if they dry out),
Convallaria, Mertensia, Aquilegia, and Papaver to name a few.
Q.
What hardiness zone are we in?
A.
Well,
that depends on where you live of course. In our Western Lower Michigan area, we are zone 5 with a small area along Lake
Michigan as zone 6. Zones are also in the process of changing, so check back in coming years as more tender plants may be
"perennials" in our area! Check out our links page here
to find a hardiness zone map.
Q.
Why do so many of my plants look dead in the spring?
A.
Many perennials do not break dormancy until very late in the spring, and even into the summer.
They may seem dead and it may seem like there is nothing there, but be patient! Some plants that break dormancy late in the season
include Hibiscus, Lobelia, Houttuynia, Asclepias, and Cimicifuga to name a few.
Q.
When is it safe to plant my flowers in the spring?
A.
For perennials, it is not really an issue, they may be planted at any
time. We "harden off" our perennials as much as possible so they are
already somewhat acclimated to our cooler April weather. Leaving them out
during the day and taking them in at night is an option for a week or so if
you are concerned about shocking them, but it usually isn't necessary. In the
event that we do get a hard frost, the worst case scenario would be some
foliage dying back, and the plant just needing time to grow back from the
bottom.
For
annuals, it is best if you can leave them out during the daytime, and take
them in at night if temps fall below 40-45. Doing this for a week or two after
purchasing them will get them adjusted to the cooler temps. After getting
acclimated, they can then be left outdoors as long as temps do not vary too much
or drop into the 30's. Obviously, keeping them from frost and cold winds is a
must. Also, New Guinea Impatiens need at least 55 to stay healthy, so keep
that in mind.
Q.
Why do some of my perennials, which are supposed to be hardy, die out over the
winter?
A.
Some perennial plants, even those that are supposed to be winter-hardy for
your area, may die and/or not come out of dormancy in the spring. This can be
caused by 1) temperatures dropping below the normal winter lows of your
particular area, which may be too cold for your usually "hardy"
plants, 2) late planting in the fall which does not allow enough time for
plant to get established, 3) sudden cold temperatures in the fall before the
plant has enough time to store up sugars ("anti-freeze" protection)
for the winter months, and 4) plants being too stressed out and unhealthy
prior to the winter months thereby not having sufficient health to survive the
winter.
To
lessen the chance of winterkill, always choose plants that are correctly and accurately labeled as being
hardy for your zone. Try to have all of your perennial planting done by
late-October or early-November. Keep your plants as healthy as possible by
adequate watering and feeding, especially during the late summer and fall when
you may think everything is "done for the year."
Q.
Why don't my peonies bloom?
A.
The most common reason is that they are either planted too shallow or too
deep. Try to plant the "eyes" (the new growth at the crown or base
of plant) about 1"-2" below the soil surface. Other reasons may be
not enough sunlight (need at least 4-5 hours), too much fertilizer or nitrogen
(peonies don't require much nutrients), a late spring frost which may have
killed the forming buds, or pruning too late in the fall before they have gone
dormant.
Notice
::
Information
displayed above is for informational purposes only. W.W.
cannot assume responsibility for further plant problems resulting
from actions taken as advised above.
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