May Night Salvia
Salvia x sylvestris 'Mainacht'
Planting & Care
Planting & Care
Delivery and Shipping
Delivery and Shipping
Preorder Shipping Schedule
We ship your plants when it's safe to transport them to your zone. Dates are estimated and subject to weather delays.
| Zone 3-4 | Week of March 30th |
| Zone 5 | Week of March 16th |
| Zone 6-12 | Week of March 2nd |
Shipping Rates
Ships in 7-10 business days • Tracking provided • Weather protected
| Under $50 | $9.99 |
| $50 - $99.99 | $14.99 |
| $100 - $149.99 | $16.99 |
| $150 - $198.99 | $24.99 |
| $199+ | FREE |
✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee
Understanding Our Container Sizes
At Nature Hills, our plants are sold in industry-standard nursery containers. You will notice we use the word "container" rather than "gallon." Container numbers follow a nursery trade size standard, not liquid volume. The number tells you the plant's size category and general maturity level. A larger container means a more established plant with a stronger root system.

Container Sizes
Quart
Plant age: 6 months to 1 year
Best for: Ground covers, perennials, ornamental grasses
What to expect: Our smallest and most affordable size. Well-suited for planting in multiples across a large area. Allow 1 to 2 seasons for full establishment.
#1 Container
Plant age: 1 to 2 years
Best for: Shrubs, perennials, smaller trees
What to expect: About the size of a large coffee can. A well-developed root system in a manageable size. Good value choice when you have time to let the plant grow into the space over a season or two.
#2 Container
Plant age: 2 to 3 years
Best for: Shrubs and trees where you want faster establishment
What to expect: A noticeable step up from a #1 in both plant size and root development. Good choice when you want visible presence without going to a larger size.
#3 Container
Plant age: 3 to 4 years
Best for: Most plants, most situations — flowering trees, shade trees, evergreen shrubs
What to expect: Our most popular size. Strong, developed root system. Plants in a #3 container make an immediate visual impact from day one. If you want a head start rather than waiting seasons for a plant to fill in, this is typically the right choice.
#5 Container and Larger
Plant age: 4 to 5+ years
Best for: Specimen plants, privacy screens, maximum instant impact
What to expect: Large, mature plants ready to make an immediate statement in your landscape. We also carry #7 and larger sizes for select varieties.
Why "Container" and Not "Gallon"?
Nursery container sizes follow an industry trade standard established for the nursery and horticulture industry. The number is a size designation, not a measurement of liquid volume. Actual soil volume varies by plant type, root mass, and growing medium. Using "container" is the accurate industry term. When you see #1, #2, or #3, think of it as the plant's size tier, not a gallon measurement.
Root Pouch Containers
Some Nature Hills plants arrive in a Root Pouch, a breathable fabric container made from 100% recycled materials. Root Pouches encourage denser root development through air pruning, which discourages root circling and promotes a stronger, more fibrous root ball at the time of planting.

There are two types. Knowing which one you have changes how you plant:
- Degradable (brown or tan fabric): Plant the entire pouch directly in the ground. The fabric breaks down naturally in the soil over time.
- Non-degradable (black or gray fabric): Remove the pouch before planting. Cut the bottom open with scissors, then peel the sides away. The fibrous root ball will hold its shape.
Not sure which type you have? Check the tag on your plant or contact us and we will confirm.
Full Root Pouch planting guide
Choosing the Right Size
| Size | Plant Age | Best For |
|---|---|---|
| Quart | 6 mo to 1 yr | Ground covers, perennials, grasses. Budget-friendly for mass plantings. |
| #1 Container | 1 to 2 yrs | Shrubs, perennials, small trees. Value choice for patient gardeners. |
| #2 Container | 2 to 3 yrs | Shrubs and trees where you want faster establishment. |
| #3 Container | 3 to 4 yrs | Most plants. Immediate visual impact. Our most popular size. |
| #5 and larger | 4+ yrs | Specimen plants, privacy screens, maximum instant impact. |
Still not sure which size is right for your project? Our plant specialists are happy to help. Contact us and we will point you in the right direction.
Plant Sentry™ Protected
Your order is protected by our compliance system that:
- Prevents restricted plants from shipping to your state
- Ensures plants meet your state's agricultural requirements
- Protects gardens from invasive pests and diseases
Description
In the high heat of the summer, cool tones in the garden are a refreshing visual treat. Use the jewel tones of rich blue flower spikes of May Night Salvia (Salvia x sylvestris 'Mainacht') to create a marvelous respite.
This easy-care hybrid perennial begs to be used as a winding rich blue ribbon at the edge of your garden walkways and borders. The flowers bloom from late spring onward. Glowing purple stems are loaded with spires of violet-purple flowers that can bloom and rebloom from late spring throughout the summer into fall. May Night flowers feature a depth of color that draws your eye.
This is one of the most popular flowers for butterflies. They will flock to your planting to access an easy nectar feast. Butterflies will enliven your Salvia planting and add color and a delightful sense of motion to your landscape! With its blue-gray, lance-shaped aromatic foliage, May Night makes an attractive accent all summer long. It stays in excellent compact form.
May Night Salvia is a low-maintenance plant that is disease and pest-free. It is a strikingly upright plant with a compact form. You'll adore its high performance and great looks! Hardy throughout USDA planting zones 3 to 8, these plants grow 18 inches when in bloom and spread about as wide or wider once mature.
Planting and Application:
Use May Night to create interest along a walkway. Simply brushing against the textured foliage releases an herbal fragrance that lingers in the air. They are perhaps at their best when multiple plants are used in mass. After all, you want to see a lot of those beautiful rich blue flower spikes. Plant them as a long, low-edging plant in borders.
This is the perfect plant for home garden perennial gardens or as a mass-fill plant in a commercial landscape. To create a solid low border for edging, plant 2 feet apart on center. You'll measure from the center of one to the center of the next. Mass plantings can be created using a series of zig-zagging staggered rows. Mulch between plants and keep new plantings weeded.
Another way to use this beauty is to create long, skinny drifts near the front of your perennial border. Start with a single plant on either end, then use 2 or 3 plants deep near the center of the drift. Vary the plant spacing from 2 to 4 feet for the most natural results.
Use it to counteract bold shades of other perennials. It coordinates beautifully with just about any hue, from white to yellow to orange, red, and shades of pink. In the ground and in containers and planters, Salvia looks great in any sunny garden!
Use taller perennials or short shrubs as a backdrop and plant groundcover Sedum in front. This deliciously textured look adds season-long interest. You'll love feeding the butterflies and creating a personal oasis for yourself and your family! Your mixed perennial garden gains a dark counterpoint, and creates depth in the Cottage Garden, and even shines in the xeric Rock Garden.
May Night Salvia can be used as a Filler in large container gardens on the patio or porch. Or, try them all by themselves in smaller pots. You'll need to water containers regularly, especially in hot weather. Make sure you cut blooms to bring inside. May Night Salvia blooms are excellent tall and slender cut flower accents! May Night Salvia has a high value for wildlife. It's simply a magnet for butterflies and Hummingbirds, as well as other beneficial insects. Yet, deer tend to leave it alone.
- 1997 Perennial Plant of the Year
- Glowing Violet Blue Flower Spikes
- Dark Gray-Green Low-Growing Mounds Of Aromatic Foliage
- Perennial Salvia Comes Back Year After Year
- Great for Cut & Dried Flowers, Pollinators & Hummingbirds
- Beautiful Filler in Containers, Borders & Edging & Mass Planting
#ProPlantTips for Care:
Give these perennials full sun exposure with at least 6 hours of direct sunlight. It needs well-drained soil, but May Night is not particular about soil type or soil pH. A 3-4 inch layer of mulch over the root systems helps to keep them moist and cool and extends the time between watering. Give new plants a moderate amount of water on a regular basis.
Once their roots are established in your native soil, this plant becomes a low-water user. Automatic drip irrigation systems can be your best friend in these situations! However, if you experience an extended period of drought, it's best to provide regular watering. You'll want to protect your investment, after all.
In containers, plant using average potting soil such as Dr. Earth Mother Land Premium Organic All Purpose Planting Mix. To increase bloom time, Salvia should be deadheaded after the first blooms begin to fade. At this time, it can be clipped back hard to rejuvenate the foliage and encourage continuous summer blooming.
- Thrives in Sun, Heat & Humidity
- Drought Tolerant Once Established
- Any Well-Drained Soil Type
- Prune Back Late Winter or Early Spring
- Deadhead To Encourage New Blooms Spring til Fall
- Deer Resistant, Easy To Grow Perennials
Gorgeous butterfly magnets, fall in love with the deep, delicious color of May Night Salvia. Order yours from the expert growers at Nature Hills today!
Specifications
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Botanical Name
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Class
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Species
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Cultivar
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Growing Zones
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Height
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Width
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Sunlight
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Growth RateFast
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Flower Color
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Leaf Color
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Fall Color
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FragrantYes
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Bloom PeriodLate Spring, Early Summer, Late Summer, Early Fall
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Does Not Ship ToAK, HI, ID, MT, PR
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