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Family: Lamiaceae (lay-mee-AY-see-ee) (Info) Genus: Salvia (SAL-vee-uh) (Info) Species: x sylvestris (sil-VESS-tris) (Info) Cultivar: Mainacht Additional cultivar information: (aka May Night)
Height: 12-18 in. (30-45 cm) 18-24 in. (45-60 cm) 24-36 in. (60-90 cm)
Spacing: 15-18 in. (38-45 cm)
Hardiness: USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure: Full Sun
Danger: N/A
Bloom Color: Blue-Violet
Bloom Time: Late Spring/Early Summer Blooms repeatedly
Foliage: Herbaceous
Other details: This plant is attractive to bees, butterflies and/or birds Drought-tolerant; suitable for xeriscaping Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Propagation Methods: By dividing the rootball From softwood cuttings
Seed Collecting: Collect seedhead/pod when flowers fade; allow to dry N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
This plant is a strong positive in spring, when it is beautiful, loaded with blooms and great for attracting bees and butterflies. It earns a neutral in my climate (hot and humid) because it requires constant deadheading to extend the initial flush of blooms, and because it tends to die back extensively in the heat of summer. That said, its healthy, easy to grow and looks wonderful in spring and (less so) early summer.
This cultivar has gorgeous, long spiky blooms in late spring. They need to be deadheaded to look neat and to continue blooming. The only drawback of this plant is the frequent need to be deadheaded. On the plus side, they bloom from late spring to fall here and butterflies are all over it. They seem to prefer it to butterfly bushes. Overall, it is a great cultivar.
On Jun 1, 2007, zville123 from Zanesville, OH (Zone 6a) wrote:
I bought 6 plants at the end of last season at WalMart. Planted them and hoped for the best. This year, all are up and healthy. Only thing is, I definitely have 2 different types of salvia, even though they all were tagged 'May Night.' Four of the plants have dark stems and a neater appearance. Two plants have green stems and are more floppy. I'm not sure which are the real 'May Nights' but the dark stems are staying in the front flower beds and the green stems are getting moved elsewhere. All are blooming abundantly.
Bought a 4" pot on impulse at Home Despot last year, after reading raves about it on another gardening forum. I was pretty resigned to not seeing much out of it that year as it was so small, but it proceeded to bloom and bloom all summer! Each flush of bloom had another spike or two of flowers and by fall it was noticeably larger.
Definitely a keeper -- I put it in a new bed where the drainage might not be so great, so I hope it made it though the winter.
I bought two very small plants at Home Depot in mid April of this year, and by late May they had grown well over a foot (in both height and spread) and were blooming. They've been blooming for six weeks now, and still have more buds. The foliage is attractive, and the flowers are gorgeous, as well as attractive to bees and butterflies.
On Jun 20, 2006, lottathyme from Scottsville, NY wrote:
A winner in my book. After having several plants for about 10 years, I have added more. The original three have not only survived but thrived in what was terrible clay soil. (Since amended, we'll see how the new ones like that.) I have never had "volunteers" but maybe because I usually deadhead in order to keep the plant blooming. The first blooming is the most impressive, but it will keep on going in a looser fashion literally ALL SUMMER if deadheaded. Looks stunning with yellow leaved or flowered plants. I have it next to ladysmantle, a yellow-leaved grass, and "Gold Nugget" barberry. Great!
On Jan 18, 2006, Suze_ from Bastrop County, TX (Zone 8b) wrote:
One of my favorite salvias. In my area, the most spectacular blooming occurs late Feb - late May, but the plants will continue to put out further flushes of bloom until frost. It helps to deadhead -- I usually just use the electric hedge clippers to make quick work of it.
On Jan 1, 2005, missmuffit from Des Moines, IA (Zone 5a) wrote:
Adore this plant and so do the bees!
This plant is so beautiful when it blooms but can be annoying when it self seeds. It's the quiet problem that no one talks about - the propensity of this plant to self sow where it's happy. And it seems to be quite happy in my Zone 5A amended clay soil.
As the area where I have it sited is starting to become a partial shaded area, May Night still blooms beautifully but it also is a 'leaner'. Likes to flop a little and lean on it's neighbors.
It does not come true from seed. Offspring are various shades of purple.
On Oct 13, 2004, smiln32 from Oklahoma City, OK (Zone 7a) wrote:
This plant has gorgeous purple stems loaded with violet-purple flowers that bloom from June to October. With its blue-gray, lance-shaped aromatic foliage, it makes an attractive accent all summer long. It has a plant height of 18” and a spread of 18-24” and stays in excellent compact form.
Selected Perennial Plant of the year in 1997.
Salvia ‘May Night’ should be planted in full sun in a moist well-drained area.
On Jul 2, 2004, flower_power from Streator, IL (Zone 5a) wrote:
I am very pleased with this plant that I added to my yard this year. It gets full sun and has been in constant bloom since planting and has filled out beautifully!
On Aug 25, 2003, berrygirl from Braselton, GA (Zone 7b) wrote:
I've been growing this for about 3 yrs. and it was beautiful until this yr. We have had record rains and it ruined my plants. They turned black and stopped blooming. Icut them back but not much help. I will prune heavy this fall and hope for the best next yr.
Update Mar 2007: I still have this salvia. It has never grown much taller or fuller and has never looked as good as it once did. Apparently it hates where its located. But since it is still alive, I'm letting it stay where it is. I need the color there.
Fast-growing and beautiful. TONS of violet-purple, mildly-scented flower spikes that attract bees & butterflies. Easily divided, even when in flower, just be sure to keep well-watered.
Grows VERY fast from softwood cuttings (as in flowering and almost full size second year). After rooting, cuttings die down to ground and resprout several days to weeks later.
May Night was the 1997 Perennial Plant Association " Plant of the Year". Large rosettes of dark green leaves continue to send up tall spikes of flowers. Must keep deadheaded for continued bloom.
Easy to care for and maintain. A real winner.
Regional...
This plant has been said to grow in the following regions:
Vincent, Alabama Tucson, Arizona Fayetteville, Arkansas Sacramento, California Denver, Colorado Laurel, Delaware Brooksville, Florida Deltona, Florida Pensacola, Florida Braselton, Georgia Lawrenceville, Georgia Marietta, Georgia Chicago, Illinois Mount Prospect, Illinois Spring Grove, Illinois Streator, Illinois Greenville, Indiana Tipton, Indiana Council Bluffs, Iowa Inwood, Iowa Urbandale, Iowa Hebron, Kentucky Salvisa, Kentucky Crofton, Maryland Saugus, Massachusetts Bay City, Michigan Cassopolis, Michigan Dearborn Heights, Michigan Fountain, Michigan Pinconning, Michigan Elsberry, Missouri Hollis, New Hampshire Albuquerque, New Mexico Roswell, New Mexico Binghamton, New York Scottsville, New York Southold, New York Yorktown Heights, New York Raleigh, North Carolina Belfield, North Dakota Medora, North Dakota Bucyrus, Ohio Cincinnati, Ohio Dayton, Ohio Springfield, Ohio Zanesville, Ohio Oklahoma City, Oklahoma Portland, Oregon Salem, Oregon Tillamook, Oregon Reading, Pennsylvania Columbia, South Carolina Gainesboro, Tennessee Knoxville, Tennessee Austin, Texas Fort Worth, Texas (2 reports) Garland, Texas (2 reports) Hereford, Texas Weatherford, Texas Fairfax, Virginia Richmond, Virginia (2 reports) Sterling, Virginia Kalama, Washington Kent, Washington Tacoma, Washington Butte Des Morts, Wisconsin Muscoda, Wisconsin Watertown, Wisconsin Casper, Wyoming