One of the most sought-after daylilies available today; winner of the 2003 Stout Medal (the highest honor a daylily can receive).
If you’re looking for the WOW! factor in daylilies, you’ve found it here with ‘Primal Scream’. Nothing comes close to the spectacular 7½-8½", glimmering tangerine orange, gold dusted blossoms and green throat of this selection.
Officially classified as “unusual form”, the tepals are narrow, twisted, and recurved with loosely ruffled edges. These gigantic blossoms are presented in midsummer on tall, graceful, willowy scapes above the attractive arching foliage. With such a distinctive presence, ‘Primal Scream’ is sure to steal the show in the garden and on retail benches when it’s in bloom.
Daylilies can survive many harsh conditions that other plants cannot including: polluted city environments, slopes, poor and dry soils, near pavement that is salted in winter, and under Black Walnut trees (not affected by juglone).
This is considered a premium daylily, which means that it has been selected as highly performing plant with exceptional bloom performance, substantive, vibrantly colored flowers, complete winter hardiness in northern zones, and a vigorous habit. Out of the hundreds of varieties we have evaluated for our catalog, we consider this to be one of the 20 best we have available.
The RAINBOW RHYTHM® trademark is owned by Walters Gardens, Inc.
Grade #1 Bare Root |
Grade #2 Bare Root |
Height:
34.0 Inches
Spread:
18.0-24.0 Inches
Hardiness Zones:
3,4,5,6,7,8,9
Flower Color:
Orange Shades
Foliage Color:
Green shades
Sunlight:
Full Sun (> 6 hrs. Direct Sun) Part Shade (4-6 hrs. Direct Sun)
Water Requirements:
Low Water Needs Average Water Needs
Soil Quality:
Poor Soil Quality Average Soil Quality Fertile Soil Quality
Soil Chemistry:
Acidic Soil (pH < 7.0) Neutral Soil (pH = 7.0) Alkaline Soil (pH > 7.0)
Bloomtime:
Midsummer
Attracts Wings:
Attracts Butterflies Attracts Hummingbirds Bee Friendly
Critter Resistant:
Rabbit Resistant
Growth Rate:
Medium
Garden Style:
Cottage Eclectic
Other Features:
Border Plant Easy To Grow Mass Planting Salt Tolerant Focal Point
Origin:
Not Native to North America
Daylilies are some of the easiest perennials to grow and are a good choice for any gardener, from the beginner to the professional. These are tough, adaptable plants that will grow in any soil, from normal to slightly wet to dry. Older varieties are able to bloom if planted in partial shade, but most of the newer introductions need full sun for best performance. Likewise, older varieties tend to spread more rapidly than the newer hybrids.
Plants should be deadheaded for cosmetic purposes, but in most cases this will not extend the bloom time.
Container:
Premium 1 Gallon Pot
When to Plant:
Spring to late summer
Finish:
6-8 weeks
Container:
Trade 1 Gallon Container
When to Plant:
Spring to late summer
Finish:
7-9 weeks
Container:
Trade 1 Gallon Container
When to Plant:
Mid to late summer
Finish:
10-12 weeks for following seasons sales
Growing Temperature:
60-68° F
Holding Temperature:
50-60° F
Soil PH:
6.0-6.5
EC (What is EC?):
2.0-3.0 pour through method
Fertility:
Fertilizing is not necessary during the first few weeks of production. Actively growing daylilies are moderate feeders. Apply a controlled release fertilizer incorporated at a rate of 1 lb of nitrogen per yard of growing meda, or 50-100 ppm nitrate delivered under a constant liquid fertilizer program.
Pests & Diseases:
Aphids, spider mites, and thrips are the most common pests. Crown rot sometimes occurs after overwintering. Cool, wet weather may bring on fusasium or rhizoctonia. There are also a few leaf spot and leaf streak foliage diseases that may be found.
In warmer climates, a daylily rust called Puccinia hemerocallidis can be a problem. This rust does not overwinter in our zone 5 Michigan climate and is therefore not a problem for daylilies which are purchased from Walters Gardens, Inc.
Potting & Timing:
Root Trimming: Prune roots according to pot depth. It's best to prune the roots rather than to scrunch them into the pot.
Moisture:
For potting soil use commercial potting media. Water thoroughly after potting, and keep evenly moist until plants are established. Allow the substrate to dry out between waterings once plants are established.
Planting Level:
Cover the crown with about 1 inch of potting medium.
PGRs/Pinching:
Drench with Sumagic at 1 ppm when grown under greenhouse conditions.
Lighting:
Grow under high light conditions.
Other Comments:
Late summer planting has the distinct advantage of producing bigger plants with more flowers. Allow at least 6-8 weeks for rooting before temperatures remain below freezing. Avoid fertilizing at this time.
Grower Tips:
Overwintering Information: Trim plants back to 2 inches late in the season. If done too early, regrowth will occur. Cover with protective frost cloth if placed outside in a cold frame. Provide ventilation whenever temperatures rise above 40° F.
American Hemerocallis Society Silver Stout Medal (AHS highest honor) -- 2003
American Hemerocallis Society Honorable Mention (AHS first stamp of approval) -- 1997
American Hemerocallis Society Award of Merit (Outstanding beauty and performance over a wide area of the country) -- 2000
American Hemerocallis Society Popularity Poll (Conducted annually to determine the favorite daylilies among AHS members from each region of the country) -- 2003
American Hemerocallis Society R. W. Munson, Jr. Award (Most outstanding distinctly patterned daylily) -- 2003
American Hemerocallis Society Lambert/Webster Award (Best unusual form cultivar) -- 2001
Height:
34.0 Inches
Spread:
18.0-24.0 Inches
Hardiness Zones:
3,4,5,6,7,8,9
Flower Color:
Orange Shades
Foliage Color:
Green shades
Sunlight:
Full Sun (> 6 hrs. Direct Sun) Part Shade (4-6 hrs. Direct Sun)
Water Requirements:
Low Water Needs Average Water Needs
Soil Quality:
Poor Soil Quality Average Soil Quality Fertile Soil Quality
Soil Chemistry:
Acidic Soil (pH < 7.0) Neutral Soil (pH = 7.0) Alkaline Soil (pH > 7.0)
Bloomtime:
Midsummer
Attracts Wings:
Attracts Butterflies Attracts Hummingbirds Bee Friendly
Critter Resistant:
Rabbit Resistant
Growth Rate:
Medium
Garden Style:
Cottage Eclectic
Other Features:
Border Plant Easy To Grow Mass Planting Salt Tolerant Focal Point
Origin:
Not Native to North America
Daylilies are some of the easiest perennials to grow and are a good choice for any gardener, from the beginner to the professional. These are tough, adaptable plants that will grow in any soil, from normal to slightly wet to dry. Older varieties are able to bloom if planted in partial shade, but most of the newer introductions need full sun for best performance. Likewise, older varieties tend to spread more rapidly than the newer hybrids.
Plants should be deadheaded for cosmetic purposes, but in most cases this will not extend the bloom time.
Container:
Premium 1 Gallon Pot
When to Plant:
Spring to late summer
Finish:
6-8 weeks
Container:
Trade 1 Gallon Container
When to Plant:
Spring to late summer
Finish:
7-9 weeks
Container:
Trade 1 Gallon Container
When to Plant:
Mid to late summer
Finish:
10-12 weeks for following seasons sales
Growing Temperature:
60-68° F
Holding Temperature:
50-60° F
Soil PH:
6.0-6.5
EC (What is EC?):
2.0-3.0 pour through method
Fertility:
Fertilizing is not necessary during the first few weeks of production. Actively growing daylilies are moderate feeders. Apply a controlled release fertilizer incorporated at a rate of 1 lb of nitrogen per yard of growing meda, or 50-100 ppm nitrate delivered under a constant liquid fertilizer program.
Pests & Diseases:
Aphids, spider mites, and thrips are the most common pests. Crown rot sometimes occurs after overwintering. Cool, wet weather may bring on fusasium or rhizoctonia. There are also a few leaf spot and leaf streak foliage diseases that may be found.
In warmer climates, a daylily rust called Puccinia hemerocallidis can be a problem. This rust does not overwinter in our zone 5 Michigan climate and is therefore not a problem for daylilies which are purchased from Walters Gardens, Inc.
Potting & Timing:
Root Trimming: Prune roots according to pot depth. It's best to prune the roots rather than to scrunch them into the pot.
Moisture:
For potting soil use commercial potting media. Water thoroughly after potting, and keep evenly moist until plants are established. Allow the substrate to dry out between waterings once plants are established.
Planting Level:
Cover the crown with about 1 inch of potting medium.
PGRs/Pinching:
Drench with Sumagic at 1 ppm when grown under greenhouse conditions.
Lighting:
Grow under high light conditions.
Other Comments:
Late summer planting has the distinct advantage of producing bigger plants with more flowers. Allow at least 6-8 weeks for rooting before temperatures remain below freezing. Avoid fertilizing at this time.
Grower Tips:
Overwintering Information: Trim plants back to 2 inches late in the season. If done too early, regrowth will occur. Cover with protective frost cloth if placed outside in a cold frame. Provide ventilation whenever temperatures rise above 40° F.
American Hemerocallis Society Silver Stout Medal (AHS highest honor) -- 2003
American Hemerocallis Society Honorable Mention (AHS first stamp of approval) -- 1997
American Hemerocallis Society Award of Merit (Outstanding beauty and performance over a wide area of the country) -- 2000
American Hemerocallis Society Popularity Poll (Conducted annually to determine the favorite daylilies among AHS members from each region of the country) -- 2003
American Hemerocallis Society R. W. Munson, Jr. Award (Most outstanding distinctly patterned daylily) -- 2003
American Hemerocallis Society Lambert/Webster Award (Best unusual form cultivar) -- 2001
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