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Landscape Idea Home Resources
Introduction
1.
Your Grounds
2. Designing and Planning
3. Designing and Planning
#2
4. Gardener Equipment
5. Construction Problems
6. Construction Problems
#2
7. Soils and Lawns
8. Soils and Lawns #2
9. Trees
10. Trees #2
11. Shrubs and Hedges
12. Shrubs and Hedges #2
13. Flowers
14. Flowers #2
15. Home Financing
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| Chapter 14 |
| Flowers #2 |
50 Garden Perennials
Name |
Color |
Season |
Height |
Planting Remarks |
|
ACONITE |
blue, white |
June |
2 ft. |
Plant 6 in. apart. Shade tolerant. |
|
ALPINE ROCK CRESS |
white |
April |
lft. |
Plant 9 in. apart. Spreads widely. |
|
AMERICAN COLUMBINE |
red, yellow |
April |
1 1/2 ft. |
Plant 1 ft. apart. Self-sowing. |
|
AMUR ADONIS |
yellow |
April |
1 ft. |
Plant 1 ft. apart. Shade tolerant. |
|
ANEMONE |
rose |
Aug.-Sept. |
lft. |
Plant 1 ft. apart, in partial shade. |
|
AZURE MONKSHOOD |
blue |
Sept.-Oct. |
3 ft. |
Plant 9 in. apart. Shade tolerant. |
|
BABY'S BREATH |
white |
June-July |
21/2 ft. |
Plant 3 ft. apart. Drain soil well. |
|
BEAR'S BREECH |
lilac, rose |
July-Aug. |
3 ft. |
Needs lots of sun and good drainage. |
|
BLOOD PINK |
scarlet |
July |
1/4ft- |
Plant 6 in. apart. Usually spreads. |
|
BLUE PHLOX |
lavender |
May |
lft. |
Plant 9 in. apart. Grows wild. |
|
BUTTERFLY WEED |
orange |
July-Aug. |
2 ft. |
Plant 1 ft. apart, in dry, sunny areas. |
|
CANYON POPPY |
white |
June |
4 ft. |
A large poppy. Plant well apart. |
|
CARDINAL LARKSPUR |
scarlet |
August |
3 ft. |
Plant 1 ft. apart. A rather delicate plant. |
|
CARPATHIAN BELLFLOWER |
blue, white |
June-Oct. |
8 in. |
Plant 1 ft. apart. Self-sowing. |
|
CELANDINE POPPY |
yellow |
May |
2 ft. |
Plant well apart. |
|
CHEDDAR PINK |
various |
June |
|
Plant 9 in. apart. A spreading plant. |
|
COLORADO COLUMBINE |
blue and white |
April |
1 1/2 ft. |
Plant 1 ft. apart. Self-so wing. |
|
CYPRESS SPURGE |
yellow |
June |
1.ft. |
Plant 9 in. apart. Good foliage. |
|
DANES' BLOOD |
violet |
July-Aug. |
1 1/4 ft. |
Plant 9 in. apart. |
|
DAVID'S ASTILBE |
rose |
June-July |
5 ft. |
Plant 1 1/2 ft. apart in moist soil. |
|
DRAGON'S HEAD |
purple |
June-July |
2 ft. |
Plant 9 in. apart. Resembles Mint. |
|
DROPMORE BUGLOSS |
deep blue |
June-July |
3-5 ft. |
Plant 3 ft. apart. Shade tolerant. |
|
DWARF PINK RAY |
boltonia pink |
September |
2 ft. |
One of the best perennials. Plant 1 ft. apart. |
|
EARLY BUGLOSS |
blue |
May-June |
11/4 ft. |
Plant 1 ft. apart. Shade tolerant. |
|
EARLY TORCH LILY |
yellow |
Aug.-Sept. |
11/2 ft- |
A showy plant. Set 11/2 ft. apart. |
|
ENGLISH PRIMROSE |
various |
April-May |
6 in. |
Good in most soil and in cool spots. |
|
FORGET-ME-NOT |
deep blue |
June |
9 in. |
Plant 1 ft. apart. A spreading plant. Very popular. |
|
FOXGLOVE PENSTEMON |
purple |
June-July |
3 ft. |
Easy to grow in woodsy soil. |
|
FRINGED BLEEDING HEART |
rose |
May-Sept. |
11/2 ft. |
Good edging. Grows in partial shade. |
|
GLOBE CENTAUREA |
yellow |
July |
11/2ft. |
Plant 11/2 ft. apart. |
|
GOATSBEARD |
cream |
June-July |
5 ft. |
Plant 2 ft. apart. |
|
GOLDEN COLUMBINE |
yellow |
May-Aug. |
2 ft. |
Plant 1 ft. apart. |
|
GOLDEN GLOW |
orange |
July-Sept. |
5 ft. |
A spreading plant. |
|
GOLDENTUFT |
yellow |
May |
11/2 ft. |
Plant 1 ft. apart. |
|
GRASS PINK |
rose |
June |
8 in. |
Plant 9 in. apart. |
|
IBERIAN GERANIUM |
blue, white |
June |
1 ft. |
Plant 9 in. apart. |
|
Name |
Color |
Season |
Height |
Planting Remarks |
|
ICELAND POPPY |
yellow, orange |
June-Oct. |
lft. |
Short-lived. Excellent for cuttings. |
|
JAPANESE PRIMROSE |
white to crimson |
June |
2 ft. |
Plant 1 ft. apart. Moist soil, cool spots best. |
|
JOE-PYE WEED |
purple |
August |
6 ft. |
Plant 2 ft. apart in wet places. |
|
LARKSPUR |
light blue |
June-Sept. |
2 ft. |
Plant 10 in. apart. Rather delicate. |
|
LEBANON STONE CRESS |
pink |
April |
9 in. |
Plant 6 in. apart. Grows in shady spots. |
|
LILAC GERANIUM |
violet |
June |
lft. |
Plant 9 in. apart. |
|
CATMINT MUSSIN |
lavender-blue |
May-Sept. |
lft. |
A spreading plant. Fine edging. |
|
OLYMPIC POPPY |
orange |
June-Oct. |
2 ft. |
A spreading plant. |
|
ORIENTAL POPPY |
various |
June |
3 ft. |
Showy flowers. |
|
PEONY |
white, pink, red |
May-June |
1 1/2-4 ft- |
A hardy, bushy plant. |
|
PINK BEAUTY |
scarlet |
June-July |
3 ft. |
Plant 1 ft. apart. Long, tubular flowers. |
|
ROSE MALLOW |
pink, red, white |
Aug.-Sept. |
4-5 ft. |
Plant 3 ft. apart in either wet or normal soil. |
|
SHASTA DAISY |
white |
June-Sept. |
2 ft. |
Good for cutting. |
|
YUNNAR MEADOW VINE |
lilac |
Aug.-Sept. |
4 ft. |
Plant 11/2 ft. apart. Good porch plant. |
|
Each spring, flowering bulbs should be well-fertilized. (Use manure and chemical fertilizer.) Care must be taken to keep fresh manure away from the roots or the bulb or tuber itself. The fertilizer should be worked well into the soil. The soil itself should be cultivated to a depth of 3 to 4 inches each week. During the blooming season, it is a good idea to cut off most of the buds to get bigger and showier flowers. Watering regularly is essential, and when the soil gets too dry, punching a few holes in it around the plant will help get the much-needed moisture down near the roots.
Spring-flowering Bulbs
Among the important spring-flowering bulbs are a number of the tulip types, some blossoming as early as April. These early tulips include albion, coleur cardinal and pink beauty. Other spring-flowering bulbs include varieties of narcissus, grape hyacinth, snowdrop, crocus, winter aconite and iris.
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Summer-flowering Bulbs
Summer - flowering bulbs require the same planting procedure as the earlier varieties. Some typical summer-flowering species include:
Autumn crocus Gladiolus
Cluster amaryllis Lilies
Bearded iris Dahlia
Peonies Summer hyacinth
Calla lily Mariposa
Propagation of plants
Certain varieties of perennials can be used to create new plants.
This is accomplished by the use of various propagation methods. The general methods used include cuttings, division of old clumps, propagation from leaves, and budding. Some varieties can be propagated by a number of methods; for others, only one way works.
Cuttings
Cutting is the process of removing a small portion of a growing plant and treating it so that roots are developed. The cutting can then be transplanted and will, in time, produce its own blooms. Cuttings are usually made from a portion of the stem, from leaves, from tubers or from roots. Cuttings are usually rooted in a mixture of sand and peat moss. Some varieties can be induced to root in water, in sphagnum moss, or in light, sandy soil. For softwood cuttings, made from the wood stem of soft-stemmed plants, insert small pieces of stem about 2 or 3 inches long in 4-inch-deep (or deeper) flowerpots, with about one-half their length exposed. Some provision should be made for shading. The flowerpot should be inserted in another pot filled with water, so that there is a steady seepage through the porous clay. The hole at the bottom of the pot should be tightly plugged with a cork.
Practically all perennials can be propagated by cuttings. The clipping itself should be made at a sharp short diagonal, just below a node or joint. The cutting should be wrapped in damp newspaper and exposed to the air for a half-hour or more. This does not apply to plants which exude a milky juice. Such cuttings should be sprinkled with water and exposed to the air for two hours.
Leaf propagation
Many perennials can be propagated by causing a leaf to root. Plants with thick fleshy leaves, like begonias and gloxinia, are particularly suited to this method of increasing their number. The leaf stem is inserted in the rooting medium and cared for as in the case of cuttings. Some plants can be propagated by placing the leaf flat on the rooting medium and weighting it down with pebbles. A slight cut is made through the main vein of the leaf.
The use of plant hormone will materially improve the chances of propagating successfully from leaves, even in the case of plants generally considered difficult to propagate by this method. Hormones are particularly successful with holly, magnolia, rhododendron, azalea, taxus and many others.
Propagation by division
Dividing clumps is one of the simplest methods of propagation. It is, in addition, good for the old divided plants. Many perennials deteriorate if left in clumps for too long a period. Dividing them insures continuous health and growth. The plants are carefully removed from the soil, in clumps, and divided simply by pulling them apart. Care should be taken to injure the roots as little as possible. Divided plants are potted, or if the division is done early in spring, as with the hardier perennials, the new clump is planted in another section of the garden. The new planting should be well fertilized and watered.
Layering
Layering is another simple method of propagation. It is adaptable only to those plants which root easily when their stems are in contact with the ground. Broad-leaved evergreens in particular (i.e., rhododendron) lend themselves well to this method.
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Simple layering involves anchoring the supple stems of plants into the adjacent soil by bending them over and burying them. Black raspberries, for example, are easily propagated in this way. For plants with less supple stems, a notch is cut about 18 inches from the tip of the stem and propped open with a twig or sliver of wood. The branch is then bent to the ground, and the notched portion covered with soil. This type of layering is best done in spring or summer. Leaves should be removed from the stem which is being used for propagating.
Serpentine layering is used for plants with long supple stems (vines, for instance) which travel close to the ground. A number of plants may be obtained from one stem by covering it with earth at different points; the tip should always be left exposed, however.
Air layering is a very modern and popular method, adaptable to trees and woody plants. A portion of a straight branch or stem is cleared of bark down to the wood, and surrounded with moist sphagnum moss. The moss should be kept damp. Some manufacturers provide plant food and hormone which can be rubbed into the cut, and a plastic wrap for the moss which is also impregnated with plant food. After the notch or stripped area has rooted well, the branch is cut off and replanted.
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Seed Propagation
Annuals can be grown readily from seed in most cases. The method of growing depends upon the delicacy or hardiness of the seed, and may require planting in frames or pots initially, transferring to the bed only when the weather is sufficiently mild and the plants well grown. Many perennials and biennials may also be propagated from seed. This method, however, is not suited to all perennials, and some of the methods already discussed will yield more fruitful results. Typical perennials which can be propagated from seed are: Hollyhock Christmas rose Columbine
Bleeding heart Baby's breath
Foxglove Butterfly weed Primrose Larkspur
Outdoor seed sowing
Depending on the variety of seed, most annuals and perennials which can be grown by this method can be planted in seedbeds out-doors. The time for planting varies. A few can be sown in autumn, but most, however, should be sown in spring, and, to be safe, not before the last frost has passed. The big disadvantage of outdoor sowing is that one sacrifices control over the circumstances under which the seeds will germinate. In an indoor hotbed, or coldframe, conditions of moisture, heat, etc., can be regulated. Not so in the outdoors, where dryness or changing weather can destroy the weaker seeds quickly. If an outdoor seedbed is planned, choose a spot with good soil. Then work in a portion of your compost pile, pulverizing the soil to the depth of 3 inches. Adding some sand and peat moss increases the effectiveness of the bed. Most seed may be planted on the surface, and the deepest one should plant is 1/2inch. The bed should be well-watered after the seed has been broadcast over the entire area. The bed can then be lightly tamped.
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Sowing seeds indoors
The two most important factors in outdoor sowing are soil texture and drainage. Texture is of greater importance in germinating seeds than soil fertility. A mixture of equal parts of good soil, coarse sand and peat moss makes a fine bed. The bottom of the seed pan should be filled with gravel or shards of old flowerpots. The seed should be sown as evenly as possible. As soon as the sowing has been completed, and the soil lightly tamped down, the pan or flat should be immersed in water until the surface shows dark and moist. Excess moisture is then permitted to drain off. This is far superior to overhead watering. The box should not be allowed to dry out until after the seeds have germinated. Germination will be hastened if the pan is placed in a warm, dark place. As soon as germination takes place, the seedlings should be placed in full light. Shredded sphagnum moss is the best medium for seed germination. Use of it prevents any possibility of "damping-off," which is a grave threat to all seeds.
Budding
Budding is a method of grafting, best accomplished in August or the early part of September. A T-shape cut is made in the bark of the host plant. The bud is selected from the last growth of the current year, and is cut, along with the nearest leaf and part of the bark and wood, from the plant chosen. Loosen the corners of the T and slip the bud under. Use rubber bands, raffia or waxed string to wind both above and below the graft. In about two weeks, the bud should be joined to the host. The cutting is then cut back, and the bud develops as part of the host. The limb on which the graft is made should be cut back to just above the grafting point.
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