Used in herbal
medicine for thousands of years, high quality ginseng roots still fetch
hundreds of dollars per pound, and patient growers can harvest large
quantities using the "wild-simulated" growing method. The method
described below requires seven years of growth before the harvesting,
but produces high quality ginseng and lessens the chance of widespread
crop death. While you can also cultivate ginseng in a field under
artificial shade and in as little as four years, that method requires
much more effort, a greater expense, and produces much less valuable
ginseng, making it only feasible for large-scale operations.
Part 1 of 4: Selecting a Growing Site
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1
Understand the wild-simulated ginseng growing method.
This method mimics the plant's natural environment. While ginseng grown
this way typically takes eight years to mature, the end result is much
more valuable than field-cultivated ginseng due to its color and shape.
You may attempt to alter this process by using artificial shade or
tilling the soil, but then you will be growing woods-grown ginseng,
which may grow into a different, less valuable shape.
[1][2]
- The field cultivation method results in a mature plant at 4 years,
but requires intensive labor, greater risk of disease spreading, and
roughly $20,000–$40,000 per acre.[3][4]
Most small scale farmers opt for the method described here instead,
which results in a much more valuable plant and costs roughly $2,600
plus labor.[5] Note that these costs are rough estimates.
Ad
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2
Find out if you live in the right environment. If you
want to grow ginseng using the "wild-simulated" method, you'll need to
have land within the plant's natural range. Ginseng grows in cool,
temperate climates containing hardwood forests in areas of 20–40 inches
of annual rainfall.
[6]
This type of environment is found in areas of the northwest, midwest,
and northeast United States, southern Canada, and mountainous regions of
the southern United States.
[7][8]
- If you are not sure whether ginseng can be grown in your region,
search online or contact your state or region's wildlife management
department.
-
3
Obtain any necessary permits or licenses to grow and sell ginseng.
State regulations on growing ginseng vary, but you will often need
special permits or licenses, especially if you are growing for
commercial harvest. Research regulations for your area, and contact your
local extension service or state agriculture or commerce departments to
find out what you need to do to legally grow ginseng. You should also
look into organic certification well before planting your seeds. The
"wild-simulated" method as described here is organic.
- Of the 19 U.S. states that allow ginseng harvesting, 18 of them
require any plants harvested to be at least 5 years old with 3 leaves,
while Illinois requires the plants to be at least 10 years old with 4
leaves.[9]
-
4
Select a suitable site. Ginseng grows best in
well-shaded sites (especially on north- or east-facing slopes) of moist
hardwood forests, especially ones with deep-rooted, deciduous trees such
as yellow poplar, oak, sugar maple, or tulip poplar.
[10] Mature forests with large hardwood trees and a canopy that blocks at least 75% of sunlight are ideal.
[11]
Shrubs, briars, and other tall, thick undergrowth can compete with the
ginseng and take up most of the available nutrients, leaving little for
the ginseng.
- Probably the best way to determine if a site is appropriate is to look for wild ginseng growing there.
- Since wild ginseng is so rare, you can also get some idea of
suitability if "companion plants" such as trillium, cohosh,
jack-in-the-pulpit, wild yam, goldenseal, Solomon’s seal, wild ginger,
or rattlesnake ferns are present.[12][13] Search for pictures of these online and check which grow in your area, or have a local botanist assist you.
- In addition, be aware that ginseng poachers are a serious problem:
Be sure to choose a spot that is hidden from public view and not near a
hiking trail or roadway.
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5
Evaluate and test the soil. The soil should be loamy and moist, yet able to drain quickly. Avoid swampy soil and hard clay. When you have a site in mind,
take several soil samples
of equal quantity from around the potential planting site and mix them
together in a plastic bucket. Have a soil analysis performed at a state
soil test laboratory or university.
[14] Your garden supply store may have a kit that you can use yourself to
test soil pH,
but calcium and phosphorus tests are more difficult to perform on your
own. While there is some controversy over what type of soil is best,
qualities to look for include a pH of 4.5 to 5.5 (acidic soil), calcium
levels of 3,000–5,000 pounds per acre (~0.35 kg per square meter), and
phosphorus (P) levels of at least 95 pounds per acre (0.01 kg per square
meter).
[15]
- Soil with the right level of moisture should not ball up in your hand or stick to your skin when you squeeze it.[16]
- Some growers prefer a more neutral pH between 6 and 7.[17]
Unfortunately, there have not been enough definitive studies to
determine the perfect environment for ginseng, but it should grow
adequately in any pH range from 4 to 7.
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6
Fertilize if necessary. If you find a site that is
perfect except for its soil chemistry, you may wish to amend the soil in
the plot to adjust the pH or increase the quantities of phosphorus or
calcium. If you want to sell wild-simulated ginseng instead of
woods-cultivated, you must avoid fertilizer, or at least apply the
fertilizer to the surface of the soil instead of mixing it in. The soil
pH may be raised by adding lime (calcium carbonate), and calcium level
can be increased--without altering pH--by the addition of gypsum
(calcium sulfate).
- Note that ginseng is able to grow in areas with lower calcium or
phosphate, but may produce smaller roots or grow more slowly. Consider
spacing the plants further apart in these situations so plants aren't
competing for the same nutrients.
Part 2 of 4: Preparing the Seeds
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1
Purchase or harvest ginseng seeds. Note that some
regions have laws prohibiting or limiting the harvest of wild ginseng;
look these up for your state, country, or region before
searching for wild plants.
If you are not legally allowed to pick them, or you cannot find the
exceedingly rare wild plant, purchase seeds from a local grower or
online. "Green" seeds will be cheaper than cold stratified seeds, but
require a few months of preparation, described below.
- Soft, moldy, or discolored seeds are not suitable for planting.[18] You may be able to return them to the seller for a replacement.
- Order seeds in advance in July or August, and have them delivered in
the fall. Waiting until fall will likely leave you with the lowest
quality seeds.[19]
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2
Keep seeds moist before planting. Keep purchased,
stratified seeds in the refrigerator in a plastic bag. Mist the seeds
with a spray bottle once a week until you are ready to plant. If the
seeds ever dry out, they will die.
[20]
-
3
Prepare your seeds for sprouting if they are not stratified.
When a ginseng plant produces seeds in the wild, the seeds do not
sprout the following year. To accomplish this, they require a year of
stratification, a process in which the seeds lose the flesh of the
berries that encase them and prepare to sprout. Most store-bought seeds
are already stratified, but if you harvested them yourself or bought
"green" seeds, you'll need to perform the process yourself. Depending on
how many seeds you have, use one of the following methods:
- Place a small amount of seeds in a pouch made of lightweight mesh,
tied with wire. In autumn, bury the pouch under 4–5 inches (10–13cm) of
loose, shaded soil. Cover with several inches (~10cm) of mulch. Mark the
location well and keep it moist, but not soaked.
- Place a large amount of seeds in a special container to drain water
and keep out rodents. Construct a wooden box with a screen top and
bottom, up to 8–12 inches (20–30cm) deep if you have enough seeds for
several layers. Fill the box with alternating layers of moist sand and
seeds. Bury the box with the top 1–2 inches (2.5–5cm) below the soil.
Cover with mulch and mark the location. Water it if the soil dries out.
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4
Plant sprouting seeds in the spring. If you
stratified your own seeds, dig up the container and see if any of the
seeds are ready. Discard soft, moldy, or discolored seeds. If any seeds
are sprouting, plant them immediately. Return the rest to the container
and bury it again, stirring them around first and checking that the sand
or soil is still moist.
[21]
-
5
Sow other seeds in the fall. Most seeds should be
sown in the autumn, after the leaves have fallen from the trees but
before the ground freezes. Ginseng seeds will do best when sown in late
fall or early winter, and planting should occur when the ground is
moist, such as after a rain.
-
6
Soak seeds in bleach and water before planting. Unless your seeds are sprouting, soak them in a mix of 1 part household bleach and 9 parts water.
[22][23]
Leave them in for 10 minutes to kill some of the fungus spores that
often infect ginseng seeds. Seeds that float are most likely empty and
dead, and should be discarded. Rinse the remaining seeds in clean water
afterward and take them to your site to plant.
- You may also treat your seeds with a fungicide, but make sure it is safe for use on ginseng first.
Part 3 of 4: Planting the Seeds
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1
Remove small weeds and ferns from the area. It is not
desirable to remove all plants from the area, but small underbrush will
compete with the ginseng. Ferns in particular create a chemical that
can kill nearby plants, so remove them or avoid areas adjacent to those
plants.
[24]
-
2
Plant large numbers of seeds quickly by scattering them.
If you want your ginseng to grow in the most wild conditions possible,
or if you have a large quantity of seed, you may wish to simply scatter
the seed on the selected planting site. Remove the leaf litter from the
ground first. Aim to scatter about 6 to 12 seeds per square foot (65–120
seeds per square meter).
[25]
-
3
Plant smaller numbers of seeds more thoroughly. Even
most wild-simulated ginseng is planted with a little preparation and a
couple standard gardening implements. First, rake leaves off the forest
floor to expose the topsoil. Use a hoe to create furrows running along,
not down, the slope. Plant according to needs:
- Plant the seeds 6–9 inches (15–23 cm) apart if you plan to harvest
large, 7+ year old ginseng. This is a typical planting method for
wild-simulated ginseng, as the wide spacing reduces the risk of disease
spreading.
- Plant as little as 1 inch apart if you have a large number of seeds and want to harvest sooner.[26]
This method is more commonly used for field-cultivated ginseng, since
the densely planted ginseng must be carefully watched and treated for
disease and pest control. It is not recommended for first time growers.
-
4
Cover the area with leaves or mulch. Replace the leaf
litter that you raked off, or add a layer of mulch. This keeps the
ground moist, which is vital for ginseng. Use 1–2 inches (2.5–5cm) of
ground cover but no more, since the ginseng sprouts will not be able to
push through a thicker layer. You should use 4 inches (10cm) of mulch if
you live in an area with cold winters and frequent frosts, but remember
to reduce this to lower levels in the spring.
[27]
- Do not use whole oak leaves. These are too tough and large for
sprouts to grow through. Shred them first if you have already bought oak
leaf mulch.[28]
-
5
Mark the plot discreetly or locate it using a GPS device.
You’re not going to need to visit the site much, and the look of the
forest can change a great deal over the 7+ years it takes for your
plants reach maturity, so make sure you can find them again. The best
way to do this is to
use a GPS device
to determine the exact coordinates of the plot. This way you don’t
leave any telltale signs that might invite poachers. If you must mark
the plot, make sure your markers don’t readily draw attention.
Part 4 of 4: Caring for your Plants and Harvesting
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1
Keep the location secret and secure. Because wild
ginseng is so valuable, poachers are common in regions where it is
grown. Fencing off the area won't deter someone who knows the ginseng is
there, but it may prevent people from discovering the site.
[29]
A bull, dog, or other aggressive animal may be an excellent thief
deterrent, as long as you fence cattle apart from the ginseng.
-
2
Thin densely growing ginseng each year. Ginseng that
grows too close together may spread disease between plants or compete
with each other for nutrients. Consider removing or transplanting plants
after the first growing season to get down to 6 plants per square foot
(65 per square meter), and again after the second year of growth down to
1 or 2 plants per square foot (11–22 per square meter).
[30]
- You may also plant ginseng in other areas each year during the fall
to develop an ongoing harvest. Many growers do this so they have mature
ginseng to harvest each year after the first batch matures.
-
3
Research carefully before using pesticides and pest poison.
One major advantage to the wild-simulated method is a reduced risk of
pest and disease, due to the wider spacing. While a few plants or
berries may be eaten occasionally, you are unlikely to lose many of the
valuable roots, and diseases shouldn't spread between plants at a high
rate.
[31] If you do encounter a problem, contact your local wildlife department for information about ginseng pesticides.
- Keep in mind that you may lose your organic certification or your
credibility in selling wild-simulated ginseng if you use pesticides.
-
4
Wait for the plants to mature. You'll need to wait
about 7-10 years for your plants to mature into large, valuable roots,
but with the right site and a little luck. Growing ginseng with the
wild-simulated method requires a lot of patience, but almost no
maintenance. Check periodically to see if the ground remains moist and
covered with a small amount of leaf litter.
- If your ginseng is planted densely, harvest after 4 years or the
roots might begin to dwindle These roots will not be as valuable,
however.[32]
-
5
Don't expect the plants to stay visible year round.
The part of the ginseng plants above the surface will die back in the
autumn, but grow again in the spring. It will grow bigger each time, and
all the while, the root below will be growing larger.
-
6
Harvest red berries annually after the third year.
Once the plants have matured, they will produce a cluster of red berries
with the seed in the center. Pick these in the fall if you want to
harvest the seeds for planting or selling. Keep in mind they will need
to be stratified as described under Preparing the Seeds.
-
7
Harvest mature plants at any point past the seventh year.
Given how long it takes ginseng to reach maturity, you’ll probably want
to harvest your plants as soon as you can, which is typically 7 years
for a high quality root. If you’re not in any hurry you can leave them
in the ground for many more years and they will continue to grow. If you
are in a hurry, check local laws for regulations on how early you can
harvest ginseng.
-
8
Dig carefully so as not to damage the root. Use a
pitchfork or needle-nose spade to dig under the plant, and leave plenty
of space (about 6 inches or 15 cm) between the plant and where you push
the pitchfork or spade into the ground. If the plant is close to
immature ginseng plants, use a smaller implement such as a stout flat
blade screwdriver about 8 or 10 inches (20 to 25 cm) long, and work with
extra care. If there is any risk of damaging the roots of adjacent
immature ginseng plants, do not attempt to harvest the plant until the
other plants mature.
-
Note: Ginseng plants typically grow at a 45º angle into the soil,
not straight down, and will fork into several sections. Dig carefully
and make sure you don't break the root.[33]
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9
Wash and dry the roots. Briefly soak the roots in a
bucket of cool water to remove excess soil. Then place the roots in a
single layer on a wooden tray and wash them gently under a sink faucet
or with a hose. Make sure the roots are not touching and let them dry on
a wooden rack in a well-ventilated room with a temperature between
70º and 90ºF (21–32ºC). Humidity should remain between 35 and 45% to
prevent drying the plant too quickly and reducing its value.
[34]
Turn the plants once per day. The roots are ready when you are able to
snap them, but you should only do this on a single test root now and
then.
- Do not scrub the roots or wash them too vigorously—some of the
medicinal chemicals are concentrated in the root hairs, and removal of
these hairs will decrease the usefulness and value of the root.
- Small roots take a day or two to dry, but large, mature roots may take up to six weeks.[35]
- Direct sunlight usually dries the roots too fast, but if you see any
mold or discoloration growing, put them in direct sun for a few hours
to kill the infection.
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