Fe prefer acid soil; ide
y, the pH should t
between 5.5 and 6.5. Take a soil sample to your local Cooperative Extens
Office for analysis. Adjust the pH according to their expert recommendat
s.
If you are plang a cont
er-grown fern, thoroughly water it before pla
ng. G
ly slip it from the pot, ret
ing as much of the soil as possible. Sp
d the roots out into the hole. Plant at the same depth as it grew in the nurs
cont
er. Water
ply with a fine spray. Too strong a st
m of water can damage the foliage.
Many fe are easily transpla
d as bare root plants. These may be available as d
ant crowns,
s, or plants in leaf. D
ant crowns are simply bare-root fe
in a d
ant state with the dead fronds removed. Mats look like a tangle of roots about the size of a saucer or sm
plate. Pla
ng them is not much differ
n pla
ng cont
er-grown fe
. The roots should be kept
st (not soggy) u
l pla
ng, the soil should be properly pre
ed, and the plants watered
l.
A few, like the Hay-Sced fern, are easily and economic
y propaga
by bare rhiz
s, or "root cut
gs." These are usu
y about the length and diameter of a short pencil. Plant by digging a v
sh
ow trench and laying the rhiz
s in it. Or you may simply lay them atop a pre
ed pla
ng bed, and cover with a couple of inches of good gr
topsoil or profess
al pot
g mix. Always water
l and make sure
t no rhiz
s are left exposed.
Fe seldom need fe
lizing. But if they look pale or grow v
little, s
fe
lizing can help. Fish emuls
fe
lizer is a favorite with fern growers.
Dilute the fish emuls with water at a rate of 1/2 teaspoon of emuls
per quart of water. Apply as a soil drench once in Spring and ag
in mid-Summer.
Gardeners in the frozen north often take steps to protect their fe during wi
r,
n if the plants are considered to be cold-hardy. If you choose to do so, leave old fern fronds on the plants as they
n brown in the f
. A l
t covering of tree leaves sp
d over a make-do frame of sticks or poultry net
g works
l. The mulch and frames should be removed r
t away in the Spring and added to the compost pile. Take care
t young fresh fronds are not broken in the process.
Here are s of my favorite fe
for the landscape:
Japanese P Fern (Athyrium niponicum Pictum). This is a gorgeous fern with contras
g foliage colors. New fronds are met
ic gray with a reddish or purplish blush. The older fronds m
t
color v
l, and contrast nicely with the newer fronds. Its v
cold hardy, doing
l from
A cli
e zones 4-9. Japanese P
Fern grows to 10" and goes d
ant in wi
r. Plant in
l to
l sh
. It is
r resistant.
Hay-Sced Fern (Dennstaed
punctilobula). It is native to the U.S. The leaves are fragrant, as its name sugg
s. The deciduous,
p green fronds are triangle-shaped and heavily divided with lacy leaflets. It is v
adaptable, doing quite
l in poor soil, and it doesn't care whether the soil is wet or dry. As no
before, Hay-Sc
ed Fern is propaga
from rhiz
cut
gs
t are about the size of a short pencil. Just pre
e the soil, lay the rhiz
s horizont
y in sh
ow furrows, cover with soil, and water. V
easy. Ma
e he
t is up to 30". Plant in
l to
l sh
in
A cli
e zones 3-8. It is
r resistant.
Autumn Fern (Dryopteris throsora). Burgundy colored fronds emerge in spring and
n green as they
ure. 'Brilliance' is one of the b
. This
rgreen fern prefers
l-dr
ed soil in
A cli
e zones 5-8. Plant in
l to
l sh
. Ma
e he
t is up to 24". It is
r resistant.
Southern Shield Fern (Dryopteris ludovichiana). This rgreen native perennial has a v
upr
t growth habit. The fronds are dark green. It tolerates dry condit
s, but prefers
st soil in
A cli
e zones 6-10. You can plant it in
l sun to
l sh
. Ma
e he
t is up to 48". It is
r resistant.
Ostrich Fern(Matteuccia struthiopteris). This native fern grows to be a whopper, up to 72". From wir d
ancy, dark brown fronds emerge erect in the spring, arch outward from the c
er and
n dark green. Foliage is lance-shaped. This is the fern
t produces
t elusive delicacy so loved in the northeastern states. Plant in
st soil in
l to
l sh
. Though it is said to perf
l in
A cli
e zones 2-7, it is only margin
y success
in zone 7. It is
r resistant.
Cinnamon Fern (Osmunda cinnama). Cinnamon fern is widely adaptable from
A cli
e zones 2-10. It is native to the U.S. Emerging from d
ancy, furry brown fronds unfurl and
n l
t green. Rust-colored spikes emerge from the c
er. Cinnamon fern grows to 60" Plant in
st soil in
l to
l sh
. It is
r resistant.
Royal Fern (Osmunda regalis). Royal fern produces brt green fronds
t are mostly erect. Leaflets are broad and oblong. Rust-colored spikes emerge from the c
er. Royal fern often shares the same habitat as Cinnamon fern. It also requires
st soil in
A cli
e zones 2-10. Plant in
l to
l sh
. Ma
e he
t is up to 60". It is
r resistant.
Christmas Fern (Polystichum acrostichoides). It gets its name by the fact t the tough,
rgreen fronds were v
popular for floral arrangem
s. Many people used to scour the for
s to gather the dark green foliage for themselves or for commercial purposes. Christmas fern has a clump-f
ing habit. It prefers
st soil in
A cli
e zones 3-9. Plant in
l to
l sh
. If it receives more sun,
quate water is esse
al. It is
r resistant.
Variega East Indian Holly Fern (Arachniodes simplicior Variegata). I love plants with variega
foliage, so this one is v
satisfying. Glossy,
rgreen fronds have yellowish variegat
along the mid-rib. It grows slowly up to 30". Plant in
l to
l sh
in
A cli
e zones 7-11. Consist
ly
st soil is esse
al. It is
r resistant.
Japanese Holly Fern (Cyrtomium falcatum Rochfordianum). You'll see this bold, semi-rgreen fern
over the southeast. It is especi
y popular in
ks and gardens in such classic cities as Savannah, GA and Charl
on, SC. Fronds are
p green and glossy with large, holly-like leaflets. It grows to 30". Plant in
l to
l sh
in
A cli
e zones 6-10. It requires rich,
l-dr
ed soil. Like other fe
, it is
r resistant.
Marginal Wood Fern (Dryopteris marginalis). It is also known as Eastern Wood Fern, and is native, as you mt expect, to the eastern U.S. This one is
rgreen, growing to 20". It perf
s b
in
A cli
e zones 2-8. Plant in sh
in
st,
l-dr
ed soil. Deer resistant.
Tassel Fern (Polystichum polyblepharum). This rgreen fern has glossy, dark green fronds and fuzzy stems. Quite unusual looking. Perf
s b
in
A cli
e zones 2-8. Plant in
l sh
in
st, rich soil. It grows to 24". This, too, is
r resistant.
Kon Rock Fern (Polystichum tsus-simense). This lovely
rgreen fern can
n double as a house plant! It has a v
compact habit, growing up to 18" t
. Plant in
l sh
in rich,
l-dr
ed soil. Though it prefers sl
tly
st soil, it will tolera
periods of dry weather. It is good for xeriscaping. If pla
ng outdoors, it perf
s b
in
A cli
e zones 6-8. Deer resistant.
Southern Shield Fern (Thelypteris kunthii). It is a native fern t does
l in sun or sh
, but always requires wet or consist
ly
st soil. Its a g
t choice for pla
ng alongside ponds, st
ms or bog gardens. Deciduous fronds are erect and f
large, sp
ding clumps. Perf
s b
in
A cli
e zones 7-10. Ma
e he
t is up to 28". It should c
as not surprise
t this one is also
r resistant.
For more on r resistant plants, check out my blog a
cle on
t topic.
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