When
to Plant
Choosing
Plants
Site
Preparation
How
to Plant
Caring
for Your Plants
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General Planting
Tips
When
to Plant
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Depending on your location,
perennials can be planted in every season of
the year. |
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Spring plantings are common
in all regions since plants have time to establish
before the summer heat. Spring is a good time
to divide many perennials. |
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Summer plantings can be successful,
provided that proper moisture is supplied. |
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Fall planting is common in
all regions, especially for early spring blooming
varieties. Plant at least one month ahead of
the projected killing frost date in your area
to allow for proper plant establishment. |
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Winter plantings are restricted
to areas like southern California, Florida and
Gulf Coast areas where frosts rarely occur. |
Choosing
Plants
Tip #1
Plan ahead for the type of plants you want, matched
to the sun or shade conditions for your site and regional hardiness zone.
| USDA |
Degrees F |
Degrees C |
| Zone 1 |
below -50 |
below -46 |
| Zone 2 |
-50 to -40 |
-46 to -40 |
| Zone 3 |
-40 to -30 |
-40 to -34 |
| Zone 4 |
-30 to -20 |
-34 to -29 |
| Zone 5 |
-20 to -10 |
-29 to -23 |
| Zone 6 |
-10 to 0 |
-23 to -18 |
| Zone 7 |
0 to 10 |
-18 to -12 |
| Zone 8 |
10 to 20 |
-12 to -7 |
| Zone 9 |
20 to 30 |
-7 to -1 |
| Zone 10 |
30 to 40 |
-1 to 4 |
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Sun - direct sunlight
for six hours or more
Part Shade - less than six hours
of sunlight
Shade - no direct sunlight |
Tip #2
Choose healthy, vigorous plants. Avoid those with
dry, pale, shriveled leaves or any with signs
of insects or diseases.
Tip #3
Don't worry if plants are not in flower. Perennials
are generally sold before their normal flowering
period and will flower later if they have been
properly conditioned.
Planting
Site Preparation
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Improve both dry, sandy soils
and wet, clayish soils by incorporating 4 to
6 inches (approximately 1 to 2 cubic yards per
100 square foot) of organic matter into the planting
site to a total depth of 8 to 12 inches. |
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Organic matter includes various
composts, aged (not fresh) manure and peat moss. |
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Soggy areas will need either
drainage tile or an 8- to 12-inch raised bed. |
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New planting sites should
have a soil test after incorporating organic
matter to determine pH (desired pH range of 5.5
to 6.5) and nutrient content. |
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In general, new plants will
benefit from incorporating 2 pounds of either
superphosphate or bonemeal along with 2 pounds
of a granular fertilizer (5-10-5, 5-10-10, 10-10-10)
into the top 6 inches over a 100 square foot
area. |
How
to Plant
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Dig a hole just as deep,
and about twice as wide, as the plant's root
ball. |
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Remove the plant from the
pot. Loosen the roots by making three to four
shallow cuts with a knife or trowel to the sides
and bottom of the root ball. |
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Place plant in hole, with
top of root ball level with the surrounding soil
and fill halfway with soil. Fill hole with water
and allow to drain. |
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Fill the remainder of the
hole with soil and water thoroughly. If desired,
apply 2 to3 inches (approximately 1/2 to 1 cubic
yard per 100 square foot) of mulch around plants
for weed control and moisture retention. |
Caring
for Your Plants
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Water is critical for establishment;
apply 1 inch of water (rain or hose) per week. |
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Be sure to control weeds
around plants until they are established. Mulching
helps but some hand weeding may be needed. |
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If sites are prepared properly,
little fertilization is needed. Broadcast 2 pounds
of 5-10-5, 5-10-10, or 10-10-10 per 100 square
foot of area in early spring as new growth begins.
Use only 1 pound per 100 square foot for Ferns. |
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Refer to plant care labels
for specific cultural practices for your perennials
such as pruning, division, etc. |
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Stake taller plants or support
in a wire cage to reduce wind and rain damage. |
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